UNITED STATES MODIFIED TOURING SERIES – RULES & REGULATIONS
Published December 1, 2006
Amended March 5, 2007
THE RULES AND/OR REGULATIONS SET FORTH HEREIN ARE DESIGNED TO PROVIDE FOR THE ORDERLY
CONDUCT OF RACING EVENTS AND TO ESTABLISH MINIMUM ACCEPTABLE REQUIREMENTS FOR SUCH
EVENTS. THESE RULES SHALL GOVERN THE CONDITION OF SPEEDWAY EVENTS AND, BY PARTICIPATING IN
THESE EVENTS, ALL RACEWAY COMPETITORS ARE DEEMED TO HAVE COMPLIED WITH THESE RULES. NO
EXPRESS OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATION OF, OR COMPLIANCE WITH
THESE RULES AND REGULATIONS. THEY ARE INTENDED AS A GUIDE FOR THE CONDUCT OF THE SPORT AND
IN NO WAY ARE A GUARANTEE AGAINST INJURY OR DEATH TO PARTICIPANTS, SPECTATORS OR OTHERS.
The United States Modified Touring Series shall hereafter be simply referred to as USMTS throughout the rules
description. USMTS official(s) shall include all personnel employed as an official by participating racetrack.
TABLE OF CONTENTS
Article 1: Definitions
Article 2: General Rules
Article 3: Points, Provisionals, Awards & Procedures
Article 4: Body
Article 5: Roll Cages
Article 6: Frame
Article 7: Cockpit
Article 8: Suspension
Article 9: Electrical System
Article 10: Fuel System
Article 11: Tires & Wheels
Article 12: Braking System
Article 13: Drive Shaft
Article 14: Transmission
Article 15: Rear End
Article 16: Engine
Article 17: Weight
Article 18: Safety
Article 19: Claiming Procedures
Appendix A: Body Specifications
Amendments
ARTICLE 1: DEFINITIONS
1.1 Racecar: An automobile designed solely for competition on oval race tracks, controlled from within by a driver.
1.2 Automobile: A vehicle which carries its own motor and operates on four non-aligned complete wheels, of which two
are used for steering and two for propulsion.
1.3 Vehicle: A man-made locomotive device propelled by constantly taking real support on the earth's surface whereas the
propulsion and steering are under the control of a driver aboard the vehicle.
1.4 Driver: The person controlling the operation of the racecar. The driver is expected to understand how to operate the
mechanisms which control the speed, direction and braking of the racecar.
1.5 Participant: A person directly involved in the mechanical operation and/or management of a racecar, including, but not
limited to, drivers, crew members, racecar owners, sponsors and their family members.
1.6 Event: A USMTS-sanctioned competition between two or more drivers and their racecars. An event shall consist of
practice (hot laps) and actual racing contests.
1.7 Official: An official shall be any person participating in the exercise of authority for enforcing or interpreting these rules.
The official may also make judgments concerning the conduct of participants and declare penalties for breaches of these
rules, as well as perform technical inspections on any USMTS racecar. The combination of officials may vary from week to
week and from one racetrack to another.
1.8 Promoter: An entrepreneur who oversees the operations of the racetrack, either as a tenant or owner of the facility.
Furthermore, the promoter is the person responsible for the implementation of rules, hiring staff and financial compensation
to participants.
1.9 Cockpit: The volume of the racecar which accommodates the driver.
ARTICLE 2: GENERAL RULES
2.1 USMTS rules shall apply at all events. All participants are subject to the rules of the USMTS and are expected to
know the rules. An expressed ignorance of USMTS rules by any participant will not be recognized as a valid argument for
failure to comply with USMTS rules.
2.2 Approval of any racecar by an official shall mean that the racecar is approved for participation in the event and shall
not be construed in any way to mean that the inspected vehicle is guaranteed to be mechanically sound or safe. Be it
further declared that officials and/or the USMTS shall not be liable for any mechanical failure, nor for any losses, injuries or
death resulting from the same.
2.3 Conduct:
2.3.1 Participants will conduct themselves as professionals. Any unsportsmanlike conduct by a participant shall be
grounds for disqualification and/or punitive action by the USMTS. This will be strictly enforced.
2.3.2 Drivers are responsible for the conduct and actions of their car owners, crew members, sponsors and family
members.
2.3.3 Absolutely no alcoholic beverage or other illegal chemical substance may be consumed by a driver prior to, or
during, an event. The duration of the event shall also include all support class events run as a part of the overall program.
The use, sale or distribution of illegal drugs at any time shall be cause for immediate and indefinite suspension.
2.3.4 Any participant who defies or violates the intent or spirit of the USMTS rules shall be considered to have engaged in
unsportsmanlike conduct and shall be dealt with accordingly and swiftly by the USMTS. Unsportsmanlike conduct shall
include, but is not limited to, participant entering another driver’s pit area; threatening or touching an official; throwing a
tantrum or acting outrageous due to an official decision; removing helmet during race conditions; use of profanity or
obscene language directed at officials or other participants; intentionally making contact with another racecar following the
finish of race or during a race under non-racing conditions (i.e. caution periods); fighting; and/or publicly criticizing USMTS
officials, rules, decisions or sponsors.
2.4 All drivers must be at least fourteen (14) years of age (proof of age required). Drivers under eighteen (18) years of age
are required to have a signed and notarized Parental Consent Form. The Parental Consent Form must be signed by a
parent or legal guardian, and must be received by USMTS headquarters prior to participation of the driver in any event.
2.5 The USMTS may require any driver to undergo a physical examination by a licensed health care provider prior to
being allowed to participate in any event.
2.6 Drivers must properly display approved USMTS sponsor decals in order to participate in any cash or contingency
award program related to that sponsor. Decals must be displayed on both sides of the racecar -- not on deck or trunk lid --
and must be of the original size and design distributed by the USMTS. At each event, drivers must properly display the
approved USMTS logo decal in order to receive any points, prize money or contingency awards for that event.
2.7 No equipment or racecar will be considered as having been approved by reason of having passed through inspection
unobserved.
2.8 All racecars must be able to join the race lineup on demand and unassisted, or must go to the rear of the lineup for the
start of the race.
2.9 The USMTS reserves the right to add to, delete, supersede or modify any rule, exhibit or drawing that the USMTS
deems necessary for the conduct of events and/or safety of participants. All amendments are effective on the date of
publication by the USMTS regardless of when a person subject to the rules receives actual notice of the amendment.
2.10 Every driver must inspect the racing surface and the track area to learn of any obstructions or other defects which, in
the driver’s opinion, presents an unsafe condition for competition. The driver shall report any unsafe condition in writing to
an official. Any driver that competes in an event is considered to have inspected the track surface and surrounding
perimeter to determine that all conditions are satisfactory. If the driver does not feel that the conditions are satisfactory, the
driver should not compete in the event. The driver further acknowledges that he or she is aware that auto racing involves
risk, and that by competing in an event, the driver assumes these risks with full awareness and responsibility.
2.11 All drivers are responsible for registering their racecar for each event in order to ensure their respective starting
position in each event.
2.12 The USMTS and/or promoter reserve the right to refuse to accept the entry of any racecar or participant.
Furthermore, the USMTS and/or promoter reserves the right to revoke or cancel any entry, or any participant’s claimed
right to be on the racetrack’s premises, if it is determined that a participant’s presence or conduct is not in the best interest
of the sport of auto racing, other participants, spectators, track management and/or employees of the USMTS.
2.13 Lighted signaling devices, hand signals or any other equipment or methods used for communication during an event
between a non-competing participant and a driver is not allowed.
2.14 Radios and any other devices used for transmitting or listening are not allowed on the racecar. Exception: Officials
may require drivers to utilize a one-way radio to enable audio communication from officials to drivers. Furthermore,
racecars may be fitted with a timing transponder as supplied by officials.
2.15 No computers allowed on the racecar, including, but not limited to, electronic traction control devices. Any driver
found to be using traction control will be subject to a minimum fine of $5,000 and a lifetime suspension from all events.
2.16 Technical Inspections:
2.16.1 Either the top four (4) finishers in the main event OR the top three (3) finishers in the main event and one (1)
randomly selected racecar will be required to report to a designated tech area following the main event, where mandatory
and varied post-race technical inspections will be required to take place.
2.16.2 At the discretion of the official(s) overseeing an event, any participant may be disqualified by the official(s) for
violation of any USMTS rule and/or equipment or action(s) deemed to be hazardous to other participants or officials.
2.16.3 All racecars are subject to inspection by an official at any time. Any driver whom refuses to allow any inspection by
an official, or terminates an inspection in progress, shall be subject to a fine of two-thousand dollars ($2,000), suspension
from all USMTS events for fourteen (14) days, loss of all points (national and regional) earned to-date for the current
season and forfeiture of all cash and/or awards earned at the event.
2.16.4 Any illegal part discovered through inspection shall be confiscated by officials and forfeited by the driver. For first
infraction, driver discovered to be using illegal parts of any kind shall be subject to a fine of two-thousand dollars ($2,000),
suspension from all USMTS events for fourteen (14) days, loss of all points (national and regional) earned to-date for the
current season and forfeiture of all cash and/or awards earned at the event. For second infraction, driver discovered to be
using illegal parts of any kind shall be subject to a fine of five-thousand dollars ($5,000), suspension from all USMTS
events for one (1) year, loss of all points (national and regional) earned to-date for the current season and forfeiture of all
cash and/or awards earned at the event. Confiscated parts will be sent to manufacturer for inspection. Failure by the driver
to surrender any illegal part for confiscation shall result in a separate penalty, in addition to other applicable penalties
under this rule.
2.16.5 The overall weight of the racecar shall be measured at the conclusion of an event with the driver in the cockpit,
wearing complete racing apparel.
2.16.6 All measurements must be made while the racecar is stationary on a flat horizontal surface.
2.17 Decisions of the USMTS are final and binding without exception.
2.18 These rules have been set by the USMTS and are subject to change without notice. All promoters will be informed of
any changes to these rules after the date of publication, and those changes should be made available to drivers at their
racetrack and/or announced at drivers meeting. The USMTS will also publish any amendments to these rules on the
USMTS website at www.usmts.com.
ARTICLE 3: POINTS, PROVISIONALS, AWARDS & PROCEDURES
3.1 The cost of a national license shall be $300. The cost of a regional license shall be $100.
3.2 There is no requirement that a driver purchase a USMTS license to compete in any USMTS event. However, benefits
enjoyed by licensed drivers includes higher event purses, increased tow money, contingency awards, points funds,
provisional starting spots, increased media recognition, a personalized driver profile page at www.usmts.com and more.
Drivers holding a national license are eligible to earn both national points and regional points in each region. Drivers
holding a regional license are eligible to earn regional points within the region for which they have purchased a license. A
driver may upgrade from a regional license to a national license for $200 prior to competing in his/her fourth event. After
competing in his/her fourth event, the cost to upgrade from a regional license to a national license shall be $300. Drivers
must be licensed prior to the start of a race in order to earn points for that race (points will not be retroactively rewarded).
3.3 Drivers must be licensed in order to be eligible for points and/or contingency awards. A driver will only receive 70% of
net points fund monies if he/she fails to appear at USMTS national awards banquet.
3.4 Points will be awarded to each driver in the main event as follows: 1st - 100 points, 2nd - 95 points, 3rd - 91 points,
4th - 87 points, 5th - 84 points, 6th - 81 points, 7th - 78 points, 8th - 76 points, 9th - 74 points, 10th - 72 points, 11th - 70
points, 12th - 68 points, 13th - 66 points, 14th - 64 points, 15th - 62 points, 16th - 60 points, 17th - 58 points, 18th - 56
points, 19th - 55 points, 20th - 54 points, 21st - 53 points, 22nd - 52 points, 23rd - 51 points. All other drivers that start the
main event and finish below 23rd are awarded 50 points. All drivers that fail to qualify for the main event are awarded 45
points.
3.5 Bonus Points:
3.5.1 Bonus points are awarded toward both national and regional points.
3.5.2 Passing Points: One (1) bonus point is awarded to each driver in the main event for each racecar passed from the
original starting spot. For instance, if a driver starts 18th and finishes 11th, that driver will earn an additional seven (7)
bonus points. Provisional starters are not eligible to earn Passing Points.
3.5.3 Leader Points: Each driver that leads at least one lap in the main event will earn one (1) bonus point. The driver that
leads the most laps in the main event will earn two (2) bonus points (tie goes to the highest-finishing driver).
3.6 Qualifying Procedures:
3.6.1 One-Day/One-Pay or Two-Day/Two-Pay Events: Drivers will draw for starting positions in heat races. Heat races
will award 59 points to the winner, then descending by 4 points for each finishing position thereafter (55-51-47-43-39, etc.).
Each driver will earn an additional 1.5 points for each racecar passed in the heat race, based on original pre-determined
starting position versus actual finishing position. Based on total points earned in the heat races (Passing Points), the top 12
drivers qualify for the first 12 starting positions in the “A” Main. Of those, the top 8 in Passing Points will redraw for starting
positions 1 through 8, with the remaining four drivers starting “heads up” by Passing Points in positions 9 through 12. One
or two “B” Mains will be staged with drivers starting “heads up” by Passing Points. The top-finishing 10 drivers from the “B”
Main(s) qualify for the “A” Main, and will be lined up “heads up” in positions 13 through 22 in the “A” Main. Additional
provisional starters may be added to the rear of the “A” Main line-up. (NOTE: If three or more “B” Mains are needed,
officials may elect to qualify 13 drivers from the heat races and 9 drivers from the “B” Mains.)
3.6.2 Two-Day/One-Pay Events: Same as above (3.6.1), except the top 4 finishers in the “A” Main on the first day qualify
for one of the first 8 starting positions in the “A” Main on the second day, along with the top 4 drivers in Passing Points
earned on the second day. Those 8 drivers will redraw for starting positions 1 through 8 in the “A” main on the second day.
3.6.3 Three-Day/One-Pay Events: Same as above (3.6.1), except the top 4 finishers in the “A” Main on the first and
second days will redraw for starting positions 1 through 8 in the “A” main on the third day.
3.6.4 At any event, officials may elect to stage a “dash” race among the top 8 qualifiers to determine the starting line-up
for positions 1 through 8 in the “A” Main.
3.7 Provisionals:
3.7.1 Drivers possessing a national license receive one (1) national provisional and one (1) regional provisional for each
region. Drivers possessing a regional license receive one (1) regional provisional for that driver’s designated region.
3.7.2 Drivers possessing a national license receive one (1) additional national provisional for each ten (10) events in
which that driver competes.
3.7.3 If a driver is absent from any one (1) event in a particular region, that driver will forfeit any unused regional
provisional for all subsequent events in that region.
3.7.4 For each main event, the first provisional awarded shall be awarded as per regional points standings and the
second shall be awarded as per national points standings. If no driver is eligible for a provisional, an additional provisional
will be awarded based on finishing position in “B” Mains, beginning with the first “B” Main, then the second “B” Main and
so forth. To be eligible for a provisional, driver must be in the top thirty (30) in points for that region or national points.
3.7.5 Additional provisionals as selected by event sponsor or track promoter may be awarded.
3.7.6 Driver may not use a back up car and receive a provisional. The racecar used in a qualifying heat race or “B” Main
will be the only racecar that driver may use for a provisional.
3.8 Top Dog Bonus: Any driver ranked among the top-10 in national points will be guaranteed $400 against winnings at
each event where that driver is among the top-10 in national points. A driver may miss one (1) event throughout the race
season before losing the Top Dog Bonus for the remainder of the year (EIRI). The Top Dog Bonus will begin with the fifth
event of the year and shall continue until the final event of the year. If a driver refuses to accept a provisional at any event,
that driver will not be eligible for the Top Dog Bonus at that event. Any driver that has used all of their provisionals will not
be eligible for the Top Dog Bonus. After all regional races have been run, the Top Dog Bonus will be determined by the
points standings in The Hunt.
3.9 Points Funds: Licensed drivers finishing among the top-10 in national or regional points, or in other various finishing
positions in various points competitions, are eligible to earn points funds. Actual points funds awarded shall be the
percentage of actual events competed in by that driver multiplied by the amount scheduled to be paid for that position in the
points standings.
3.10 The Hunt for the USMTS National Championship will be comprised of the final 10 to 15 events of the season and
shall determine the national champion, the final top-10 in national points and subsequent points funds to be distributed.
The USMTS points system shall be used at all regional events, with the top-10 in the final points standings in each region
earning 10 points for first place, 9 points for second place and so forth, descending to 1 point for 10th place. Each driver
who competed at all events within a region also earns 5 bonus points, regardless of finishing position in the final regional
points standings. The total points earned for all regions shall serve as the base points that each driver will start ‘The Hunt’
with. The USMTS points system will be used at the remaining events for the drivers in ‘The Hunt’ to determine the USMTS
National Champion. Drivers must possess a national license to be eligible to earn points in ‘The Hunt’ and/or national
points funds.
3.11 Rookies:
3.11.1 All cash monies, trophies and contingencies will be awarded to drivers who fulfill and meet all minimum Rookie
requirements during the racing season.
3.11.2 Driver must register as a Rookie and possess a valid USMTS national license.
3.11.3 Driver may not have participated in more than twelve (12) USMTS events in a single season, or more than twenty
(20) overall USMTS events.
3.11.4 Driver may not have won a USMTS main event during a prior season.
3.11.5 Driver may not have won a Rookie of the Year award, monies or contingency awards from any similar touring
series or sanctioning bodies.
3.11.6 Driver may not have won a championship in any similar touring series or sanctioning body.
3.11.7 Driver may withdraw his/her Rookie registration by submitting a request in writing to USMTS headquarters. Drivers
formally withdrawing shall retain their Rookie eligibility for future seasons.
3.11.8 Official decisions regarding Rookie eligibility are final, binding and not subject to appeal.
3.11.9 Rookie Points will be awarded to Rookies based on their performance in relation to other Rookies in the main
event as follows: 1st - 25 points, 2nd - 23 points, 3rd - 21 points, 4th - 19 points, 5th - 17 points, 6th - 15 points, 7th - 13
points. All other Rookies that start the main event are awarded 11 points. All Rookies that fail to qualify for the main event
are awarded 10 points.
ARTICLE 4: BODY
4.1 1970 or newer American compact passenger cars only. No panel vans or station wagons.
4.2 An aluminum half-windshield may be used on driver’s side of the front window opening only.
4.3 Stock appearing front window support units must be used (painted roll bars are not acceptable substitutes). Front
window may have a support of no more than six (6) inches at bottom, going straight up to top for non-clear materials.
Support may be up to ten (10) inches at bottom, going straight up to top, only if it is a clear Lexan material.
4.4 A minimum window opening of twelve (12) inches must be maintained on both side window openings.
4.5 Streamlining at top of windshield is not allowed. Bodies must have standard appearing windshield opening and corner
post must follow standard configuration.
4.6 Original roof line of vehicle must be maintained with a maximum of five (5) inches of slope from rear to front. No more
than one-half (1/2) inch stiffener allowed at the rear of the roof and must turn down perpendicular to the ground. O.E.M.
Gremlin roofs are not allowed.
4.7 Sail panels must be of matching design with matching styles on both sides of racecar.
4.8 No belly pans. A belly pan will be defined as any object or material that alters the airflow under the racecar.
4.9 No panel in front of the right door next to the engine compartment.
4.10 No racecar will be allowed to compete with excessive body damage (to be determined by an official).
4.11 Spoilers:
4.11.1 A maximum rear spoiler height of eight (8) inches of total material will be allowed for racecars utilizing the Flat
Tappet/Steel Head or Brodix Aluminum Spec Head engine options. For all other engine combinations, a maximum spoiler
height of five (5) inches of total material will be allowed. See Article 16 for specific engine rules.
4.11.2 Rear spoiler may not exceed the width of the rear deck lid.
4.11.3 A maximum of four (4) supports may be installed on the front of the rear spoiler. Supports may extend to a
maximum of two (2) inches above and a maximum of two (2) inches behind the top of the rear spoiler. Supports may be a
maximum of twenty-four (24) inches n total length.
4.11.4 A maximum two (2) inch tall fin is allowed on each side of the nosepiece.
4.11.5 Fins, wings or other air spoilers (except as noted above) are not allowed.
4.12 Side panels enclosing the engine compartment are allowed for decal placement only, and may not extend further
back than the back of the block. Side panels must be easily removed for inspection of racecar at any time.
4.13 The rear deck lid and/or trunk area must be covered.
4.14 Aluminum roofs are allowed.
4.15 Doors and quarter panels may be mounted a maximum of one (1) inch above the deck.
4.16 Excluding hood and nosepiece, the top of the body should extend no further forward than the back of the engine
block. The bottom of the body may extend up to twelve (12) inches forward of the back of the engine block.
4.17 Bumpers:
4.17.1 Both front and rear bumpers must be used, and must not have any sharp edges. Any inappropriate bumper will be
disallowed by an official. Front bumper should be mounted from frame-end to frame-end with the bottom loop parallel to
ground. Bumpers must be made of a minimum of one and one-quarter (1-1/4) inch tubing and must be able to support the
racecar if lifted by a tow vehicle.
4.17.2 Rear bumpers may be constructed of tubing or flat stock, and must protect the fuel cell. Center of bumpers (both
front and rear) must be at least sixteen (16) inches from the ground and no more than twenty (20) inches from ground. Rear
bumpers may be no more than two (2) inches wider than the body on each side and may not be open-ended (must wrap
around and be connected to side rail bars).
4.17.3 Any utilizing bumper as weight must be have bumper painted white and have number painted on bumper. Must use
one-half (1/2) inch bolts to secure bumper.
4.18 Appearance:
4.18.1 All racecars must be numbered with large legible numbers on both sides, on top and on the nose and real panels.
Numbers on the sides of the racecar should be in contrasting color from the body and be at least four (4) inches thick and
at least eighteen (18) inches high. Top numbers should be at least four (4) inches thick and twenty-four (24) inches high.
4.18.2 Officials reserve the right, in the public image of the sport and/or the USMTS, to assign, approve or disapprove any
advertising, sponsorship or similar agreement in connection with any event. All cars must be neat appearing and are
subject to approval of officials to compete. By competing in an event, all drivers agree to comply with the decisions of
officials in this regard.
ARTICLE 5: ROLL CAGES
5.1 Round steel tubing, seamless roll-over bars are required for the basic roll cage, and must be acceptable to officials.
Acceptable tubing is as follows: one and three-quarters (1-3/4) inches by nine-tenths (.090) of an inch or one and on-half (1-
1/2) inches by ninety-five one-hundredths (.095) of an inch for mild steel and DOM tubing (one and three-quarters (1-3/4)
inches by eighty-three one-hundredths (.083) of an inch for chrome-moly tubing). Aluminum and/or other soft metals are not
allowed. Roll bar connections must be properly welded.
5.2 Roll bars within the driver’s reach must be padded with an accepted material as determined by an official. Fire
retardant material is highly recommended.
5.3 Installation and workmanship must be acceptable to officials.
5.4 Must be frame-mounted in at least six (6) places.
5.5 Must consist of a configuration of front and rear hoops connected by tubing on the sides or side hoops.
5.6 With helmet on and driver securely strapped into the racing seat, top of driver’s head must not protrude above the roll
cage.
5.7 Must have a protective screen or bars in front window opening in front of driver’s face.
5.8 Protection of driver’s feet utilizing a bar across the back of the engine with vertical bars and rub rails or similar
protection is mandatory.
5.9 Brace bars forward of roll cage may not be higher than the stock hood height x eighty-three one-thousandths (.083)
inch for hood height.
5.10 A minimum of three (3) driver side door bars must be parallel to ground and located perpendicular to the driver so as
to provide maximum protection for the driver, but without causing undue difficulty in getting in or out of the racecar. Side
bars must be welded to the front and the rear of the roll cage members. Door bars with a thickness of less than nine-tenths
(.090) of an inch should have four (4) bars at least one and one-half (1-1/2) inches in diameter at a minimum of eighty-three
one-hundredths (.083) of an inch thickness and be gusseted in place. The door bars must have six (6) vertical studs per
side of one and three-quarters (1-3/4) inches by eighty-three one-hundredths (.083) of an inch minimum seamless round
tubing equally spaced.
ARTICLE 6: FRAME
6.1 Factory production complete full 1960 or newer parallel American passenger car frames only. Frames may be cut in
rear only at a point not further than thirty-six (36) inches from center of rear end housing.
6.2 May only be altered for the installation of springs and shocks.
6.3 All components must be made of steel and be properly welded.
6.4 Must be full and complete on both sides, may not be widened or narrowed and must be able to support roll cage on
both sides.
6.5 Minimum height from ground is four (4) inches. Exception: Front cross member may be notched for radiator clearance
only.
6.6 No Jeep, Bronco or similar four-wheel drive frames allowed. No sports car frames allowed. No front-wheel-drives
allowed.
6.7 Rear of frame may be altered to accept leaf or coil springs.
6.8 No hydraulic, ratchet or electric weight jacks anywhere on the racecar. Aluminum jack bolts are not allowed.
6.9 Minimum wheelbase must be one-hundred eight (108) inches on both sides (no tolerance).
6.10 Tubular front clips are not allowed.
6.11 Maximum overall width of car (at front or rear) shall not exceed seventy-eight (78) inches from outside of tread to
outside of tread (no tolerance).
ARTICLE 7: COCKPIT
7.1 Loose objects and/or weights are not allowed.
7.2 Air bags are not allowed.
7.3 Rear view mirrors are not allowed.
7.4 Floor and firewall must be complete in the driver’s compartment. No interior sheet metal can be higher than or enclose
a standard window opening. Sheet metal in the driver’s compartment must be horizontal from the top of the driver shaft
tunnel to the right side door bars or angle from the top of the drive shaft tunnel upwards to the top of the right side door
bars. Driver must be able to exit the racecar from both sides. Any driver caught with a double firewall in cockpit is subject to
deeper inspection.
7.5 Steering:
7.5.1 Must be O.E.M. and remain within original bolt pattern for type of frame used.
7.5.2 Rack and pinion is not allowed.
7.5.4 May be modified to suit driver, but must remain on left side of cockpit (no center steering).
7.5.5 Quick-release metal coupling on steering wheel is mandatory. Plastic couplings are not allowed.
7.6 Seat:
7.6.1 Factory-manufactured racing seats are mandatory, and must be acceptable to officials.
7.6.2 Homemade aluminum, plastic or fiberglass seats are not allowed.
7.6.3 Must be properly installed and seat back cannot be moved back further than rear edge of quarter post.
7.6.4 High-back aluminum seats only.
ARTICLE 8: SUSPENSION
8.1 Must remain stock-type for the type of frame being used. Steel aftermarket parts may be used as stock components as
long as they mount in the stock location and are the same size as the O.E.M. parts.
8.2 No aluminum or titanium components allowed. Magnet must stick to all components.
8.3 Steel tube-type upper A-frames allowed and can be moved.
8.4 Aluminum cross shafts and wedge tubes are permitted.
8.5 Stock passenger car spindles only - no fabricated spindles. Bottom A-frames cannot be altered, lightened or moved.
8.6 Front sway bars may be used. Front sway bars must be made of steel and may be attached to the bottom A-frame
using steel heim joints. Sway bars must be solid full-length O.E.M.
8.7 Rear panhard bars may be used. Rear panhard bars must be made of steel and may be attached by using a minimum
three-quarter (3/4) inch i.d. steel heim joint.
8.8 Steel coil-over eliminators or steel/aluminum coil-over kits are allowed, but must conform to shock and spring rules.
8.9 Suspension or rear end parts must be steel. Aluminum mounting brackets are permitted.
8.10 Shocks & Springs:
8.10.1 One shock per wheel only.
8.10.2 Air shocks are not allowed.
8.10.3 All coil springs must be at least four and one-half (4-1/2) inches outside diameter. Steel springs only. No torsion
bars allowed in rear.
8.10.4 Canister shocks are not allowed.
8.10.5 Shocks shall be subject to claim, as outlined in Claim Procedures (Article 19).
ARTICLE 9: ELECTRICAL SYSTEM
9.1 Battery:
9.1.1 Must be securely mounted.
9.1.2 One (1) 12-volt battery only.
9.2 Ignition:
9.2.1 Magnetos or crank-triggered ignitions are not allowed.
9.2.2 No more than one (1) coil may be used.
9.2.3 Kill switch required within easy reach of the driver. The switch must be clearly marked “off” and “on”.
9.2.4 Digital tachometers are permitted. At the discretion of officials, MSD boxes may be confiscated.
9.2.5 All wiring must be accessible for inspection. Any driver caught with extra wiring may be suspended and/or
disqualified.
9.2.6 MSD ignition boxes shall be subject to claim, as outlined in Claim Procedures (Article 19).
ARTICLE 10: FUEL SYSTEM
10.1 Fuel:
10.1.1 Must be automotive gasoline or alcohol. No additives of any kind.
10.1.2 May not be blended with ethers or other oxygenates, and may not be blended with aniline or its derivatives, nitro
compounds or other nitro containing compounds.
10.2 Electric fuel pumps are not allowed.
10.3 Carburetor:
10.3.1 One (1) two-barrel, one (1) four-barrel or one (1) Predator carburetor properly installed will be permitted.
10.3.2 Must be naturally aspirated.
10.3.3 No fuel injection.
10.4 Fuel cell:
10.4.1 Must be commercially manufactured and must be mounted utilizing at least two (2) steel straps. Straps must be two
(2) inches wide at all measuring points.
10.4.2 Must be enclosed in a steel container and must be protected in rear of axle by roll cage tubing mounted securely.
10.4.3 No part may be lower than protective tubing. Protective tubing must be no wider than six (6) inches on both sides.
10.4.4 Must have check valves.
10.4.5 Limited to a maximum capacity of thirty-two (32) gallons.
ARTICLE 11: TIRES & WHEELS
11.1 Wheels:
11.1.1 Must be fifteen (15) inches in diameter and eight (8) inches in width.
11.1.2 Stickers are not required.
11.1.3 Must be reinforced steel only.
11.1.4 A steel or aluminum bead lock may be used on the right side wheels only, and may be mounted on the outside of
the wheel so long as it does not add over three-quarters (3/4) of an inch to the overall width of the wheel.
11.1.5 Homemade mud caps are not allowed.
11.1.6 Wheel covers are allowed on right side wheels only.
11.1.7 Wide five wheel adaptors are not allowed.
11.1.8 Steel or aluminum spacer between hub and wheel is allowed, but overall width of racecar cannot exceed seventy-
eight (78) inches.
11.1.9 Aluminum or steel lug nuts are allowed.
11.2 Tires:
11.2.1 American Racer G60 or KK-704 (stamped or non-stamped) tires are allowed. All non-stamped tires must be asphalt
(no dirt). Some events may allow an alternative tire. Check your entry form or call (515) 832-7944 to verify.
11.2.2 Softening is not allowed. Any driver caught softening tires shall be fined, suspended and shall receive no points
money. Refer to Rule 2.16.4 for clarification.
11.2.3 Grooving and siping is allowed.
11.2.4 Recaps are not allowed.
ARTICLE 12: BRAKING SYSTEM
12.1 Must be operating on all four wheels and must lock up all four wheels during inspection.
12.2 Must have caliper and rotor on all four wheels. Vented rotors are required on front wheels.
12.3 Electronic brake actuators are not allowed.
12.4 Calipers may not be lightened and must be O.E.M.
12.5 Steel or aluminum single-piston O.E.M.-type calipers are allowed.
12.6 Rotors must be steel and may not be lightened or drilled. Rotors may be re-drilled for different bolt patterns or larger
studs.
12.7 Front-to-rear or let-to-right (but not both) brake bias is allowed.
12.8 Brake shut-offs are not allowed.
12.9 Brake lines must be visible.
ARTICLE 13: DRIVE SHAFT
13.1 A loop is required and must be constructed of at least one-quarter (1/4) inch by two (2) inch solid steel. Loop must be
mounted no more than six (6) inches from the front of the drive shaft tube. Alternatively, two (2) loops of one-quarter (1/4)
inch by one (1) inch solid steel fastened to cross member are allowed.
13.2 Must be painted white and made of steel.
ARTICLE 14: TRANSMISSION
14.1 O.E.M. three-, four- and five-speed and automatic production-types allowed.
14.2 “In and out” boxes are not allowed.
14.3 Must all be clutch-operated.
14.4 Bert and Brinn transmissions are allowed. With motor running and racecar in stationary position, driver must be able
to engage racecar in gear and move forward, then backward, at time of inspection.
14.5 Clutch must be inside of bell housing for O.E.M. production-types.
14.6 One (1) forward gear and one (1) reverse gear must be in working order, plus a neutral position, and must be able to
be shifted by driver.
14.7 Clutch-type transmissions must be equipped with an explosion-proof steel bell housing. Aluminum must be SFI-
approved (GM bell housing is not SFI approved).
14.8 Automatic, Bert or Brinn transmissions must have a guard two-hundred seventy (270) degrees around flex plate or
flywheel, and must be constructed of at least one-quarter (1/4) inch steel. Alternatively, automatic transmissions may utilize
an SFI-approved aftermarket guard.
14.9 All racecars must have the capability of starting without being pushed or pulled.
ARTICLE 15: REAR END
15.1 Any passenger car- or truck-type is allowed. No aluminum allowed except lowering blocks, axle cap and drive plate.
15.2 Quick change is optional: Steel tubes only; ten (10) inch ring gear only; pinion and carrier bearings must be tapered;
titanium is not allowed; wide-five wheel patterns are not allowed; aluminum spools are permitted. Magnesium will be
permitted until such date that the cost increases, at which time only magnesium rear ends purchased prior to that date will
be permitted and must have original serial number.
15.3 No cambered rear ends (one-piece drive flange only).
15.4 No traction devices allowed (includes Gold Track, True Track or similar type components).
ARTICLE 16: ENGINE
16.1 Must be able to be used in conventional passenger car without alteration. Motor mounts may not be removed or
altered. Castings and fittings may not be changed. Machine work on outside of engine, or on front or rear of camshaft, is
not allowed.
16.2 No total “dry sump” systems allowed. “Wet” system must be operative.
16.3 Cooling system may be modified. Radiators and oil coolers must not protrude above interior.
16.4 Any American make may be used. Rear of engine (bell housing flange) must be mounted at least seventy-two (72)
inches forward from the center line of the rear axle - no tolerance.
16.5 Offset must be within two (2) inches of centerline of front cross member.
16.6 Must be a minimum of eleven (11) inches from ground to front center of crankshaft.
16.7 Steel blocks only – no aluminum or titanium.
16.8 Overflow tubes must be directed toward the ground and inside the frame rails.
16.9 Radiator must be mounted in front of engine.
16.10 Wiring elements must be accessible for technical inspection. Any racecar advancing spots and missing will be
subject to disqualification.
16.11 Tri-Y headers are not allowed.
16.12 Exhaust system and/or mufflers must be mounted in such a way as to direct spent gases away from the cockpit and
away from areas of possible fuel spillage.
16.13 Mufflers are recommended. Mufflers may be required at some events. Check your entry form or call (515) 832-7944
to verify.
16.14 Spoiler height (Article 4, Rule 4.12) and overall racecar weight (Article 17, Rule 17.1) shall be determined by the
engine combination utilized.
16.15 Engine Option #1 - Flat Tappet/Steel Head Engines:
16.15.1 Stock diameter lifters only. Mushroom lifters are not allowed.
16.15.2 Stud girdles and shaft rockers are allowed.
16.15.3 Engine components must be of matching manufacturers (i.e. Chevy for Chevy).
16.15.4 Minimum overall racecar weight will be two-thousand four-hundred (2,400) pounds.
16.15.5 Eight (8) inch spoiler allowed (see Article 4, Rule 4.11).
16.16 Engine Option #2 - Brodix Aluminum Spec Head Engines:
16.16.1 Approved product numbers for the BRODIX Aluminum Spec Head are as follows:
Chevrolet - SP CH USMTS
Ford - SP FO USMTS
Mopar - SP MO USMTS
To contact BRODIX or to find the dealer nearest you, visit www.brodix.com or call (479) 394-1075.
16.16.2 Roller cams are permitted.
16.16.3 Removing, relocating, grinding, polishing or defacing of any cast letters or numbers is strictly forbidden.
16.16.4 May be angle milled, but valve angle must remain within one (1) degree of original manufactured specification.
16.16.5 Valve guides must retain original angle and spacing as manufactured. Valve guides may not be tapered, thinned
or shortened whatsoever.
16.16.6 Absolutely no welding or adding material of any kind.
16.16.7 Removal of material is not allowed, except for pushrod clearance. Factory CNC chamber may not be altered in
any way.
16.16.8 Absolutely no enlarging, relocating or other altering of any bolt hole, dowel hole or threaded hole, except to spot
face bolt holes after angle milling.
16.16.9 Heli coils may be used for repairs.
16.16.10 Absolutely no grinding or polishing of any kind anywhere on the casting, except for pushrod clearance.
16.16.11 Internally repaired BRODIX Aluminum Spec Head must be recertified by BRODIX.
16.16.12 BRODIX Aluminum Spec Head checking fixtures will be used by officials to check all specifications and
dimensions.
16.16.13 Minimum overall car weight will be two-thousand four-hundred (2,400) pounds.
16.16.14 Eight (8) inch spoiler allowed (see Article 4, Rule 4.11).
16.16.15 Any driver caught breaking any of the above rules shall be subject to penalties in Rule 2.16.4. No points money
will be awarded to any driver breaking these rules.
16.17 Engine Option #3 - Aluminum or Steel Head Engines (with stock valve angle):
16.17.1 Stock valve angle heads only. Roller cams are permitted.
16.17.2 Raised intake runner heads are not allowed.
16.17.4 If utilizing aluminum heads, racecar must have fifty (50) pounds in front of mid-plate.
16.17.5 Minimum overall car weight will be two-thousand four-hundred (2,400) pounds.
16.17.6 Five (5) inch spoiler allowed (see Article 4, Rule 4.11).
16.18 Engine Option #4 - Aluminum or Steel Head Engines (with non-stock valve angle and raised intake runner
heads):
16.18.1 Roller cams are permitted.
16.18.2 If utilizing aluminum heads, racecar must have fifty (50) pounds in front of mid-plate.
16.18.3 Minimum overall car weight will be two-thousand five-hundred (2,500) pounds.
16.18.4 Five (5) inch spoiler allowed (see Article 4, Rule 4.11).
16.18.5 NOTE: This engine combination will not be allowed in 2008. Stock valve angles will be required.
ARTICLE 17: WEIGHT
17.1 The minimum overall racecar weight for racecars utilizing the Flat Tappet/Steel Head Engine (Article 16, Rule 16.15),
Brodix Aluminum Spec Head Engine (Article 16, Rule 16.16) or Aluminum or Steel Head Engines with stock valve angle
(Article 16, Rule 16.17) shall be two-thousand four-hundred (2,400) pounds. The minimum overall racecar weight for
racecars utilizing Aluminum or Steel Head Engines with non-stock valve angle and raised intake runner heads (Article 16,
Rule 16.8) shall be two-thousand five-hundred (2,500) pounds. If utilizing aluminum heads, racecar must have fifty (50)
pounds in front of mid-plate (this does not add to the overall racecar weight).
17.2 Ballast:
17.2.1 May not be mounted in cockpit, or outside of body or hood area.
17.2.2 Must be securely mounted, painted white and clearly marked with the car number.
17.2.3 Must be attached with at least two (2) one-half (1/2) inch bolts.
17.2.4 May not be attached to rear bumper.
ARTICLE 18: SAFETY
18.1 It is recommended that each racecar have built-in fire extinguishing equipment, but cannot be of the dry powder type
(must be Halon 1211 or equivalent).
18.2 Drivers should have in their pit area as part of their equipment, at all times, a fully charged dry chemical, Halon (or its
equivalent) fire extinguisher. Ten (10) or thirteen (13) pound fire extinguishers are highly recommended.
18.3 Driver must wear required helmet, fire suit and five-point safety harness whenever the racecar is on the racetrack.
This includes during track packing, warm ups, hot laps and races.
18.4 Helmets are mandatory and must be an approved SHCA or Snell-type full coverage.
18.5 Helmets should accompany driver and racecar at time of inspection.
18.6 Helmets of at least Snell SA2000 or SA2005 rating are mandatory.
18.7 Complete one- or two-piece fire suits of a flame retardant nature must be worn by all drivers at all times when the
racecar is on the racetrack. This includes during track packing, warm ups, hot laps and races.
18.8 Fire-resistant gloves are mandatory. Fire-resistant shoes are highly recommended.
18.9 Five-point safety belts, sub-belt and shoulder harness is required. Factory-type shoulder belts or straps are not
allowed.
18.10 Metal to metal buckles are required on shoulder and seat belts.
18.11 Shoulder harness must be mounted securely to the roll cage. It is recommended that seat belts and shoulder
harnesses not to be more than one (1) year old.
18.12 Where the belt passes through the seat edges, it must have a grommet installed, be rolled and/or padded to
prevent cutting of the belt.
18.13 Full-size window net mounted in the left side driver’s window opening and/or approved racing arm restraints are
required. Window net mounts must be welded to the roll cage. All bars around the driver must have approved roll bar
padding. If driver is utilizing arm restraints and official can pull driver's arm out of cockpit, driver will not be allowed to
compete.
18.14 Fire-resistant safety neck collars are mandatory.
ARTICLE 19: CLAIMING PROCEDURES
19.1 Any driver possessing a valid USMTS license may have the opportunity to execute a claim. All drivers, licensed or
not, are subject to being claimed.
19.2 Any driver in the main event is eligible to claim the shocks or MSD ignition box of another driver’s racecar in the main
event.
19.3 Claims must be made within five (5) minutes of the completion of the main event. Claimed items must be removed at
the racetrack and within one (1) hour after claimed driver accepts the claim.
19.4 Immediately following the conclusion of the main event, without returning to his/her pit location, driver making claim
must drive racecar, under its own power, directly to the designated claim area. Claiming driver shall select from eligible
racecars in the main event, and must declare that choice to the official overseeing the claim area. If the claiming driver
decides at that time that he/she does not wish to execute the claim, he/she will nonetheless be charged one claim on
his/her claim card. If multiple drivers declare an intention to claim, the driver finishing farthest back in the main event will
select first.
19.5 Claiming driver must present cash to official overseeing the claim area at the time the driver declares intention to
claim. The cash price of the claim shall be $100 each for shocks or $250 for MSD ignition boxes. Drivers claiming shocks
may claim one (1) or more shocks during a single claim.
19.6 Driver is allowed one (1) claim per event, regardless of the outcome of that claim.
19.7 Only drivers and officials are allowed in the designated claim area. Any other participants associated with that
racecar that enter the claim area will be subject to disqualification, fine and/or suspension.
19.8 Only a driver may claim, and only the claimed driver may agree to accept or refuse the claim. The first statement of
acceptance or rejection of the claim by the claimed driver is binding.
19.9 Any driver refusing to accept a claim will forfeit all cash winnings and contingency awards for that event. Any driver
refusing to accept a claim will forfeit all USMTS points (national, regional or otherwise) accumulated up to, and including,
the event at which the claim was made. Furthermore, driver will forfeit the privilege to make a claim for a period of one (1)
year from the date on which the claim was refused.
19.10 Sabotage of claimed parts will result in driver being suspended from all USMTS events for fourteen (14) days and
until a $1,000 fine is paid and received at USMTS headquarters. Driver will also forfeit all USMTS points (national, regional
or otherwise) accumulated up to, and including, the event at which the sabotage occurred. Furthermore, driver will forfeit
the privilege to make a claim for a period of one (1) year from the date on which the sabotage occurred.
19.11 Driver may claim a maximum of three (3) times during the calendar year.
19.12 The USMTS reserves the right to disallow any claim at their discretion.
19.13 At their discretion, officials reserve the option to claim the shocks or MSD ignition box of any racecar. Officials may
exchange MSD ignition boxes at any time.
19.14 Disqualification shall not affect a legal claim. Claimed parts will be removed and transferred prior to any penalties
being assessed.
APPENDIX A: BODY SPECIFICATIONS
AMENDMENTS
December 17, 2006
• Rule 16.16: Amended for grammatical clarity only (no material rule changes).
• Added Table of Contents.
January 22, 2007
• Rule 3.7.4: Amended rule regarding provisionals.
• Rule 3.8.4: Amended rule regarding Top Dog Bonus.
• Rules 16.15-18: Amended engine rules for clarification of options and penalties.
January 31, 2007
• Rule 15.2: amended rule regarding quick changes with magnesium material.
March 5, 2007
• Apendix A: added 2007 Body Specifications graphic.
• Rule 2.6: Clarified required decal position for awards eligibility.
For rules clarifications or questions, call (515) 832-7944 or email tech@usmts.com.
Published December 1, 2006
Amended March 5, 2007
THE RULES AND/OR REGULATIONS SET FORTH HEREIN ARE DESIGNED TO PROVIDE FOR THE ORDERLY
CONDUCT OF RACING EVENTS AND TO ESTABLISH MINIMUM ACCEPTABLE REQUIREMENTS FOR SUCH
EVENTS. THESE RULES SHALL GOVERN THE CONDITION OF SPEEDWAY EVENTS AND, BY PARTICIPATING IN
THESE EVENTS, ALL RACEWAY COMPETITORS ARE DEEMED TO HAVE COMPLIED WITH THESE RULES. NO
EXPRESS OR IMPLIED WARRANTY OF SAFETY SHALL RESULT FROM PUBLICATION OF, OR COMPLIANCE WITH
THESE RULES AND REGULATIONS. THEY ARE INTENDED AS A GUIDE FOR THE CONDUCT OF THE SPORT AND
IN NO WAY ARE A GUARANTEE AGAINST INJURY OR DEATH TO PARTICIPANTS, SPECTATORS OR OTHERS.
The United States Modified Touring Series shall hereafter be simply referred to as USMTS throughout the rules
description. USMTS official(s) shall include all personnel employed as an official by participating racetrack.
TABLE OF CONTENTS
Article 1: Definitions
Article 2: General Rules
Article 3: Points, Provisionals, Awards & Procedures
Article 4: Body
Article 5: Roll Cages
Article 6: Frame
Article 7: Cockpit
Article 8: Suspension
Article 9: Electrical System
Article 10: Fuel System
Article 11: Tires & Wheels
Article 12: Braking System
Article 13: Drive Shaft
Article 14: Transmission
Article 15: Rear End
Article 16: Engine
Article 17: Weight
Article 18: Safety
Article 19: Claiming Procedures
Appendix A: Body Specifications
Amendments
ARTICLE 1: DEFINITIONS
1.1 Racecar: An automobile designed solely for competition on oval race tracks, controlled from within by a driver.
1.2 Automobile: A vehicle which carries its own motor and operates on four non-aligned complete wheels, of which two
are used for steering and two for propulsion.
1.3 Vehicle: A man-made locomotive device propelled by constantly taking real support on the earth's surface whereas the
propulsion and steering are under the control of a driver aboard the vehicle.
1.4 Driver: The person controlling the operation of the racecar. The driver is expected to understand how to operate the
mechanisms which control the speed, direction and braking of the racecar.
1.5 Participant: A person directly involved in the mechanical operation and/or management of a racecar, including, but not
limited to, drivers, crew members, racecar owners, sponsors and their family members.
1.6 Event: A USMTS-sanctioned competition between two or more drivers and their racecars. An event shall consist of
practice (hot laps) and actual racing contests.
1.7 Official: An official shall be any person participating in the exercise of authority for enforcing or interpreting these rules.
The official may also make judgments concerning the conduct of participants and declare penalties for breaches of these
rules, as well as perform technical inspections on any USMTS racecar. The combination of officials may vary from week to
week and from one racetrack to another.
1.8 Promoter: An entrepreneur who oversees the operations of the racetrack, either as a tenant or owner of the facility.
Furthermore, the promoter is the person responsible for the implementation of rules, hiring staff and financial compensation
to participants.
1.9 Cockpit: The volume of the racecar which accommodates the driver.
ARTICLE 2: GENERAL RULES
2.1 USMTS rules shall apply at all events. All participants are subject to the rules of the USMTS and are expected to
know the rules. An expressed ignorance of USMTS rules by any participant will not be recognized as a valid argument for
failure to comply with USMTS rules.
2.2 Approval of any racecar by an official shall mean that the racecar is approved for participation in the event and shall
not be construed in any way to mean that the inspected vehicle is guaranteed to be mechanically sound or safe. Be it
further declared that officials and/or the USMTS shall not be liable for any mechanical failure, nor for any losses, injuries or
death resulting from the same.
2.3 Conduct:
2.3.1 Participants will conduct themselves as professionals. Any unsportsmanlike conduct by a participant shall be
grounds for disqualification and/or punitive action by the USMTS. This will be strictly enforced.
2.3.2 Drivers are responsible for the conduct and actions of their car owners, crew members, sponsors and family
members.
2.3.3 Absolutely no alcoholic beverage or other illegal chemical substance may be consumed by a driver prior to, or
during, an event. The duration of the event shall also include all support class events run as a part of the overall program.
The use, sale or distribution of illegal drugs at any time shall be cause for immediate and indefinite suspension.
2.3.4 Any participant who defies or violates the intent or spirit of the USMTS rules shall be considered to have engaged in
unsportsmanlike conduct and shall be dealt with accordingly and swiftly by the USMTS. Unsportsmanlike conduct shall
include, but is not limited to, participant entering another driver’s pit area; threatening or touching an official; throwing a
tantrum or acting outrageous due to an official decision; removing helmet during race conditions; use of profanity or
obscene language directed at officials or other participants; intentionally making contact with another racecar following the
finish of race or during a race under non-racing conditions (i.e. caution periods); fighting; and/or publicly criticizing USMTS
officials, rules, decisions or sponsors.
2.4 All drivers must be at least fourteen (14) years of age (proof of age required). Drivers under eighteen (18) years of age
are required to have a signed and notarized Parental Consent Form. The Parental Consent Form must be signed by a
parent or legal guardian, and must be received by USMTS headquarters prior to participation of the driver in any event.
2.5 The USMTS may require any driver to undergo a physical examination by a licensed health care provider prior to
being allowed to participate in any event.
2.6 Drivers must properly display approved USMTS sponsor decals in order to participate in any cash or contingency
award program related to that sponsor. Decals must be displayed on both sides of the racecar -- not on deck or trunk lid --
and must be of the original size and design distributed by the USMTS. At each event, drivers must properly display the
approved USMTS logo decal in order to receive any points, prize money or contingency awards for that event.
2.7 No equipment or racecar will be considered as having been approved by reason of having passed through inspection
unobserved.
2.8 All racecars must be able to join the race lineup on demand and unassisted, or must go to the rear of the lineup for the
start of the race.
2.9 The USMTS reserves the right to add to, delete, supersede or modify any rule, exhibit or drawing that the USMTS
deems necessary for the conduct of events and/or safety of participants. All amendments are effective on the date of
publication by the USMTS regardless of when a person subject to the rules receives actual notice of the amendment.
2.10 Every driver must inspect the racing surface and the track area to learn of any obstructions or other defects which, in
the driver’s opinion, presents an unsafe condition for competition. The driver shall report any unsafe condition in writing to
an official. Any driver that competes in an event is considered to have inspected the track surface and surrounding
perimeter to determine that all conditions are satisfactory. If the driver does not feel that the conditions are satisfactory, the
driver should not compete in the event. The driver further acknowledges that he or she is aware that auto racing involves
risk, and that by competing in an event, the driver assumes these risks with full awareness and responsibility.
2.11 All drivers are responsible for registering their racecar for each event in order to ensure their respective starting
position in each event.
2.12 The USMTS and/or promoter reserve the right to refuse to accept the entry of any racecar or participant.
Furthermore, the USMTS and/or promoter reserves the right to revoke or cancel any entry, or any participant’s claimed
right to be on the racetrack’s premises, if it is determined that a participant’s presence or conduct is not in the best interest
of the sport of auto racing, other participants, spectators, track management and/or employees of the USMTS.
2.13 Lighted signaling devices, hand signals or any other equipment or methods used for communication during an event
between a non-competing participant and a driver is not allowed.
2.14 Radios and any other devices used for transmitting or listening are not allowed on the racecar. Exception: Officials
may require drivers to utilize a one-way radio to enable audio communication from officials to drivers. Furthermore,
racecars may be fitted with a timing transponder as supplied by officials.
2.15 No computers allowed on the racecar, including, but not limited to, electronic traction control devices. Any driver
found to be using traction control will be subject to a minimum fine of $5,000 and a lifetime suspension from all events.
2.16 Technical Inspections:
2.16.1 Either the top four (4) finishers in the main event OR the top three (3) finishers in the main event and one (1)
randomly selected racecar will be required to report to a designated tech area following the main event, where mandatory
and varied post-race technical inspections will be required to take place.
2.16.2 At the discretion of the official(s) overseeing an event, any participant may be disqualified by the official(s) for
violation of any USMTS rule and/or equipment or action(s) deemed to be hazardous to other participants or officials.
2.16.3 All racecars are subject to inspection by an official at any time. Any driver whom refuses to allow any inspection by
an official, or terminates an inspection in progress, shall be subject to a fine of two-thousand dollars ($2,000), suspension
from all USMTS events for fourteen (14) days, loss of all points (national and regional) earned to-date for the current
season and forfeiture of all cash and/or awards earned at the event.
2.16.4 Any illegal part discovered through inspection shall be confiscated by officials and forfeited by the driver. For first
infraction, driver discovered to be using illegal parts of any kind shall be subject to a fine of two-thousand dollars ($2,000),
suspension from all USMTS events for fourteen (14) days, loss of all points (national and regional) earned to-date for the
current season and forfeiture of all cash and/or awards earned at the event. For second infraction, driver discovered to be
using illegal parts of any kind shall be subject to a fine of five-thousand dollars ($5,000), suspension from all USMTS
events for one (1) year, loss of all points (national and regional) earned to-date for the current season and forfeiture of all
cash and/or awards earned at the event. Confiscated parts will be sent to manufacturer for inspection. Failure by the driver
to surrender any illegal part for confiscation shall result in a separate penalty, in addition to other applicable penalties
under this rule.
2.16.5 The overall weight of the racecar shall be measured at the conclusion of an event with the driver in the cockpit,
wearing complete racing apparel.
2.16.6 All measurements must be made while the racecar is stationary on a flat horizontal surface.
2.17 Decisions of the USMTS are final and binding without exception.
2.18 These rules have been set by the USMTS and are subject to change without notice. All promoters will be informed of
any changes to these rules after the date of publication, and those changes should be made available to drivers at their
racetrack and/or announced at drivers meeting. The USMTS will also publish any amendments to these rules on the
USMTS website at www.usmts.com.
ARTICLE 3: POINTS, PROVISIONALS, AWARDS & PROCEDURES
3.1 The cost of a national license shall be $300. The cost of a regional license shall be $100.
3.2 There is no requirement that a driver purchase a USMTS license to compete in any USMTS event. However, benefits
enjoyed by licensed drivers includes higher event purses, increased tow money, contingency awards, points funds,
provisional starting spots, increased media recognition, a personalized driver profile page at www.usmts.com and more.
Drivers holding a national license are eligible to earn both national points and regional points in each region. Drivers
holding a regional license are eligible to earn regional points within the region for which they have purchased a license. A
driver may upgrade from a regional license to a national license for $200 prior to competing in his/her fourth event. After
competing in his/her fourth event, the cost to upgrade from a regional license to a national license shall be $300. Drivers
must be licensed prior to the start of a race in order to earn points for that race (points will not be retroactively rewarded).
3.3 Drivers must be licensed in order to be eligible for points and/or contingency awards. A driver will only receive 70% of
net points fund monies if he/she fails to appear at USMTS national awards banquet.
3.4 Points will be awarded to each driver in the main event as follows: 1st - 100 points, 2nd - 95 points, 3rd - 91 points,
4th - 87 points, 5th - 84 points, 6th - 81 points, 7th - 78 points, 8th - 76 points, 9th - 74 points, 10th - 72 points, 11th - 70
points, 12th - 68 points, 13th - 66 points, 14th - 64 points, 15th - 62 points, 16th - 60 points, 17th - 58 points, 18th - 56
points, 19th - 55 points, 20th - 54 points, 21st - 53 points, 22nd - 52 points, 23rd - 51 points. All other drivers that start the
main event and finish below 23rd are awarded 50 points. All drivers that fail to qualify for the main event are awarded 45
points.
3.5 Bonus Points:
3.5.1 Bonus points are awarded toward both national and regional points.
3.5.2 Passing Points: One (1) bonus point is awarded to each driver in the main event for each racecar passed from the
original starting spot. For instance, if a driver starts 18th and finishes 11th, that driver will earn an additional seven (7)
bonus points. Provisional starters are not eligible to earn Passing Points.
3.5.3 Leader Points: Each driver that leads at least one lap in the main event will earn one (1) bonus point. The driver that
leads the most laps in the main event will earn two (2) bonus points (tie goes to the highest-finishing driver).
3.6 Qualifying Procedures:
3.6.1 One-Day/One-Pay or Two-Day/Two-Pay Events: Drivers will draw for starting positions in heat races. Heat races
will award 59 points to the winner, then descending by 4 points for each finishing position thereafter (55-51-47-43-39, etc.).
Each driver will earn an additional 1.5 points for each racecar passed in the heat race, based on original pre-determined
starting position versus actual finishing position. Based on total points earned in the heat races (Passing Points), the top 12
drivers qualify for the first 12 starting positions in the “A” Main. Of those, the top 8 in Passing Points will redraw for starting
positions 1 through 8, with the remaining four drivers starting “heads up” by Passing Points in positions 9 through 12. One
or two “B” Mains will be staged with drivers starting “heads up” by Passing Points. The top-finishing 10 drivers from the “B”
Main(s) qualify for the “A” Main, and will be lined up “heads up” in positions 13 through 22 in the “A” Main. Additional
provisional starters may be added to the rear of the “A” Main line-up. (NOTE: If three or more “B” Mains are needed,
officials may elect to qualify 13 drivers from the heat races and 9 drivers from the “B” Mains.)
3.6.2 Two-Day/One-Pay Events: Same as above (3.6.1), except the top 4 finishers in the “A” Main on the first day qualify
for one of the first 8 starting positions in the “A” Main on the second day, along with the top 4 drivers in Passing Points
earned on the second day. Those 8 drivers will redraw for starting positions 1 through 8 in the “A” main on the second day.
3.6.3 Three-Day/One-Pay Events: Same as above (3.6.1), except the top 4 finishers in the “A” Main on the first and
second days will redraw for starting positions 1 through 8 in the “A” main on the third day.
3.6.4 At any event, officials may elect to stage a “dash” race among the top 8 qualifiers to determine the starting line-up
for positions 1 through 8 in the “A” Main.
3.7 Provisionals:
3.7.1 Drivers possessing a national license receive one (1) national provisional and one (1) regional provisional for each
region. Drivers possessing a regional license receive one (1) regional provisional for that driver’s designated region.
3.7.2 Drivers possessing a national license receive one (1) additional national provisional for each ten (10) events in
which that driver competes.
3.7.3 If a driver is absent from any one (1) event in a particular region, that driver will forfeit any unused regional
provisional for all subsequent events in that region.
3.7.4 For each main event, the first provisional awarded shall be awarded as per regional points standings and the
second shall be awarded as per national points standings. If no driver is eligible for a provisional, an additional provisional
will be awarded based on finishing position in “B” Mains, beginning with the first “B” Main, then the second “B” Main and
so forth. To be eligible for a provisional, driver must be in the top thirty (30) in points for that region or national points.
3.7.5 Additional provisionals as selected by event sponsor or track promoter may be awarded.
3.7.6 Driver may not use a back up car and receive a provisional. The racecar used in a qualifying heat race or “B” Main
will be the only racecar that driver may use for a provisional.
3.8 Top Dog Bonus: Any driver ranked among the top-10 in national points will be guaranteed $400 against winnings at
each event where that driver is among the top-10 in national points. A driver may miss one (1) event throughout the race
season before losing the Top Dog Bonus for the remainder of the year (EIRI). The Top Dog Bonus will begin with the fifth
event of the year and shall continue until the final event of the year. If a driver refuses to accept a provisional at any event,
that driver will not be eligible for the Top Dog Bonus at that event. Any driver that has used all of their provisionals will not
be eligible for the Top Dog Bonus. After all regional races have been run, the Top Dog Bonus will be determined by the
points standings in The Hunt.
3.9 Points Funds: Licensed drivers finishing among the top-10 in national or regional points, or in other various finishing
positions in various points competitions, are eligible to earn points funds. Actual points funds awarded shall be the
percentage of actual events competed in by that driver multiplied by the amount scheduled to be paid for that position in the
points standings.
3.10 The Hunt for the USMTS National Championship will be comprised of the final 10 to 15 events of the season and
shall determine the national champion, the final top-10 in national points and subsequent points funds to be distributed.
The USMTS points system shall be used at all regional events, with the top-10 in the final points standings in each region
earning 10 points for first place, 9 points for second place and so forth, descending to 1 point for 10th place. Each driver
who competed at all events within a region also earns 5 bonus points, regardless of finishing position in the final regional
points standings. The total points earned for all regions shall serve as the base points that each driver will start ‘The Hunt’
with. The USMTS points system will be used at the remaining events for the drivers in ‘The Hunt’ to determine the USMTS
National Champion. Drivers must possess a national license to be eligible to earn points in ‘The Hunt’ and/or national
points funds.
3.11 Rookies:
3.11.1 All cash monies, trophies and contingencies will be awarded to drivers who fulfill and meet all minimum Rookie
requirements during the racing season.
3.11.2 Driver must register as a Rookie and possess a valid USMTS national license.
3.11.3 Driver may not have participated in more than twelve (12) USMTS events in a single season, or more than twenty
(20) overall USMTS events.
3.11.4 Driver may not have won a USMTS main event during a prior season.
3.11.5 Driver may not have won a Rookie of the Year award, monies or contingency awards from any similar touring
series or sanctioning bodies.
3.11.6 Driver may not have won a championship in any similar touring series or sanctioning body.
3.11.7 Driver may withdraw his/her Rookie registration by submitting a request in writing to USMTS headquarters. Drivers
formally withdrawing shall retain their Rookie eligibility for future seasons.
3.11.8 Official decisions regarding Rookie eligibility are final, binding and not subject to appeal.
3.11.9 Rookie Points will be awarded to Rookies based on their performance in relation to other Rookies in the main
event as follows: 1st - 25 points, 2nd - 23 points, 3rd - 21 points, 4th - 19 points, 5th - 17 points, 6th - 15 points, 7th - 13
points. All other Rookies that start the main event are awarded 11 points. All Rookies that fail to qualify for the main event
are awarded 10 points.
ARTICLE 4: BODY
4.1 1970 or newer American compact passenger cars only. No panel vans or station wagons.
4.2 An aluminum half-windshield may be used on driver’s side of the front window opening only.
4.3 Stock appearing front window support units must be used (painted roll bars are not acceptable substitutes). Front
window may have a support of no more than six (6) inches at bottom, going straight up to top for non-clear materials.
Support may be up to ten (10) inches at bottom, going straight up to top, only if it is a clear Lexan material.
4.4 A minimum window opening of twelve (12) inches must be maintained on both side window openings.
4.5 Streamlining at top of windshield is not allowed. Bodies must have standard appearing windshield opening and corner
post must follow standard configuration.
4.6 Original roof line of vehicle must be maintained with a maximum of five (5) inches of slope from rear to front. No more
than one-half (1/2) inch stiffener allowed at the rear of the roof and must turn down perpendicular to the ground. O.E.M.
Gremlin roofs are not allowed.
4.7 Sail panels must be of matching design with matching styles on both sides of racecar.
4.8 No belly pans. A belly pan will be defined as any object or material that alters the airflow under the racecar.
4.9 No panel in front of the right door next to the engine compartment.
4.10 No racecar will be allowed to compete with excessive body damage (to be determined by an official).
4.11 Spoilers:
4.11.1 A maximum rear spoiler height of eight (8) inches of total material will be allowed for racecars utilizing the Flat
Tappet/Steel Head or Brodix Aluminum Spec Head engine options. For all other engine combinations, a maximum spoiler
height of five (5) inches of total material will be allowed. See Article 16 for specific engine rules.
4.11.2 Rear spoiler may not exceed the width of the rear deck lid.
4.11.3 A maximum of four (4) supports may be installed on the front of the rear spoiler. Supports may extend to a
maximum of two (2) inches above and a maximum of two (2) inches behind the top of the rear spoiler. Supports may be a
maximum of twenty-four (24) inches n total length.
4.11.4 A maximum two (2) inch tall fin is allowed on each side of the nosepiece.
4.11.5 Fins, wings or other air spoilers (except as noted above) are not allowed.
4.12 Side panels enclosing the engine compartment are allowed for decal placement only, and may not extend further
back than the back of the block. Side panels must be easily removed for inspection of racecar at any time.
4.13 The rear deck lid and/or trunk area must be covered.
4.14 Aluminum roofs are allowed.
4.15 Doors and quarter panels may be mounted a maximum of one (1) inch above the deck.
4.16 Excluding hood and nosepiece, the top of the body should extend no further forward than the back of the engine
block. The bottom of the body may extend up to twelve (12) inches forward of the back of the engine block.
4.17 Bumpers:
4.17.1 Both front and rear bumpers must be used, and must not have any sharp edges. Any inappropriate bumper will be
disallowed by an official. Front bumper should be mounted from frame-end to frame-end with the bottom loop parallel to
ground. Bumpers must be made of a minimum of one and one-quarter (1-1/4) inch tubing and must be able to support the
racecar if lifted by a tow vehicle.
4.17.2 Rear bumpers may be constructed of tubing or flat stock, and must protect the fuel cell. Center of bumpers (both
front and rear) must be at least sixteen (16) inches from the ground and no more than twenty (20) inches from ground. Rear
bumpers may be no more than two (2) inches wider than the body on each side and may not be open-ended (must wrap
around and be connected to side rail bars).
4.17.3 Any utilizing bumper as weight must be have bumper painted white and have number painted on bumper. Must use
one-half (1/2) inch bolts to secure bumper.
4.18 Appearance:
4.18.1 All racecars must be numbered with large legible numbers on both sides, on top and on the nose and real panels.
Numbers on the sides of the racecar should be in contrasting color from the body and be at least four (4) inches thick and
at least eighteen (18) inches high. Top numbers should be at least four (4) inches thick and twenty-four (24) inches high.
4.18.2 Officials reserve the right, in the public image of the sport and/or the USMTS, to assign, approve or disapprove any
advertising, sponsorship or similar agreement in connection with any event. All cars must be neat appearing and are
subject to approval of officials to compete. By competing in an event, all drivers agree to comply with the decisions of
officials in this regard.
ARTICLE 5: ROLL CAGES
5.1 Round steel tubing, seamless roll-over bars are required for the basic roll cage, and must be acceptable to officials.
Acceptable tubing is as follows: one and three-quarters (1-3/4) inches by nine-tenths (.090) of an inch or one and on-half (1-
1/2) inches by ninety-five one-hundredths (.095) of an inch for mild steel and DOM tubing (one and three-quarters (1-3/4)
inches by eighty-three one-hundredths (.083) of an inch for chrome-moly tubing). Aluminum and/or other soft metals are not
allowed. Roll bar connections must be properly welded.
5.2 Roll bars within the driver’s reach must be padded with an accepted material as determined by an official. Fire
retardant material is highly recommended.
5.3 Installation and workmanship must be acceptable to officials.
5.4 Must be frame-mounted in at least six (6) places.
5.5 Must consist of a configuration of front and rear hoops connected by tubing on the sides or side hoops.
5.6 With helmet on and driver securely strapped into the racing seat, top of driver’s head must not protrude above the roll
cage.
5.7 Must have a protective screen or bars in front window opening in front of driver’s face.
5.8 Protection of driver’s feet utilizing a bar across the back of the engine with vertical bars and rub rails or similar
protection is mandatory.
5.9 Brace bars forward of roll cage may not be higher than the stock hood height x eighty-three one-thousandths (.083)
inch for hood height.
5.10 A minimum of three (3) driver side door bars must be parallel to ground and located perpendicular to the driver so as
to provide maximum protection for the driver, but without causing undue difficulty in getting in or out of the racecar. Side
bars must be welded to the front and the rear of the roll cage members. Door bars with a thickness of less than nine-tenths
(.090) of an inch should have four (4) bars at least one and one-half (1-1/2) inches in diameter at a minimum of eighty-three
one-hundredths (.083) of an inch thickness and be gusseted in place. The door bars must have six (6) vertical studs per
side of one and three-quarters (1-3/4) inches by eighty-three one-hundredths (.083) of an inch minimum seamless round
tubing equally spaced.
ARTICLE 6: FRAME
6.1 Factory production complete full 1960 or newer parallel American passenger car frames only. Frames may be cut in
rear only at a point not further than thirty-six (36) inches from center of rear end housing.
6.2 May only be altered for the installation of springs and shocks.
6.3 All components must be made of steel and be properly welded.
6.4 Must be full and complete on both sides, may not be widened or narrowed and must be able to support roll cage on
both sides.
6.5 Minimum height from ground is four (4) inches. Exception: Front cross member may be notched for radiator clearance
only.
6.6 No Jeep, Bronco or similar four-wheel drive frames allowed. No sports car frames allowed. No front-wheel-drives
allowed.
6.7 Rear of frame may be altered to accept leaf or coil springs.
6.8 No hydraulic, ratchet or electric weight jacks anywhere on the racecar. Aluminum jack bolts are not allowed.
6.9 Minimum wheelbase must be one-hundred eight (108) inches on both sides (no tolerance).
6.10 Tubular front clips are not allowed.
6.11 Maximum overall width of car (at front or rear) shall not exceed seventy-eight (78) inches from outside of tread to
outside of tread (no tolerance).
ARTICLE 7: COCKPIT
7.1 Loose objects and/or weights are not allowed.
7.2 Air bags are not allowed.
7.3 Rear view mirrors are not allowed.
7.4 Floor and firewall must be complete in the driver’s compartment. No interior sheet metal can be higher than or enclose
a standard window opening. Sheet metal in the driver’s compartment must be horizontal from the top of the driver shaft
tunnel to the right side door bars or angle from the top of the drive shaft tunnel upwards to the top of the right side door
bars. Driver must be able to exit the racecar from both sides. Any driver caught with a double firewall in cockpit is subject to
deeper inspection.
7.5 Steering:
7.5.1 Must be O.E.M. and remain within original bolt pattern for type of frame used.
7.5.2 Rack and pinion is not allowed.
7.5.4 May be modified to suit driver, but must remain on left side of cockpit (no center steering).
7.5.5 Quick-release metal coupling on steering wheel is mandatory. Plastic couplings are not allowed.
7.6 Seat:
7.6.1 Factory-manufactured racing seats are mandatory, and must be acceptable to officials.
7.6.2 Homemade aluminum, plastic or fiberglass seats are not allowed.
7.6.3 Must be properly installed and seat back cannot be moved back further than rear edge of quarter post.
7.6.4 High-back aluminum seats only.
ARTICLE 8: SUSPENSION
8.1 Must remain stock-type for the type of frame being used. Steel aftermarket parts may be used as stock components as
long as they mount in the stock location and are the same size as the O.E.M. parts.
8.2 No aluminum or titanium components allowed. Magnet must stick to all components.
8.3 Steel tube-type upper A-frames allowed and can be moved.
8.4 Aluminum cross shafts and wedge tubes are permitted.
8.5 Stock passenger car spindles only - no fabricated spindles. Bottom A-frames cannot be altered, lightened or moved.
8.6 Front sway bars may be used. Front sway bars must be made of steel and may be attached to the bottom A-frame
using steel heim joints. Sway bars must be solid full-length O.E.M.
8.7 Rear panhard bars may be used. Rear panhard bars must be made of steel and may be attached by using a minimum
three-quarter (3/4) inch i.d. steel heim joint.
8.8 Steel coil-over eliminators or steel/aluminum coil-over kits are allowed, but must conform to shock and spring rules.
8.9 Suspension or rear end parts must be steel. Aluminum mounting brackets are permitted.
8.10 Shocks & Springs:
8.10.1 One shock per wheel only.
8.10.2 Air shocks are not allowed.
8.10.3 All coil springs must be at least four and one-half (4-1/2) inches outside diameter. Steel springs only. No torsion
bars allowed in rear.
8.10.4 Canister shocks are not allowed.
8.10.5 Shocks shall be subject to claim, as outlined in Claim Procedures (Article 19).
ARTICLE 9: ELECTRICAL SYSTEM
9.1 Battery:
9.1.1 Must be securely mounted.
9.1.2 One (1) 12-volt battery only.
9.2 Ignition:
9.2.1 Magnetos or crank-triggered ignitions are not allowed.
9.2.2 No more than one (1) coil may be used.
9.2.3 Kill switch required within easy reach of the driver. The switch must be clearly marked “off” and “on”.
9.2.4 Digital tachometers are permitted. At the discretion of officials, MSD boxes may be confiscated.
9.2.5 All wiring must be accessible for inspection. Any driver caught with extra wiring may be suspended and/or
disqualified.
9.2.6 MSD ignition boxes shall be subject to claim, as outlined in Claim Procedures (Article 19).
ARTICLE 10: FUEL SYSTEM
10.1 Fuel:
10.1.1 Must be automotive gasoline or alcohol. No additives of any kind.
10.1.2 May not be blended with ethers or other oxygenates, and may not be blended with aniline or its derivatives, nitro
compounds or other nitro containing compounds.
10.2 Electric fuel pumps are not allowed.
10.3 Carburetor:
10.3.1 One (1) two-barrel, one (1) four-barrel or one (1) Predator carburetor properly installed will be permitted.
10.3.2 Must be naturally aspirated.
10.3.3 No fuel injection.
10.4 Fuel cell:
10.4.1 Must be commercially manufactured and must be mounted utilizing at least two (2) steel straps. Straps must be two
(2) inches wide at all measuring points.
10.4.2 Must be enclosed in a steel container and must be protected in rear of axle by roll cage tubing mounted securely.
10.4.3 No part may be lower than protective tubing. Protective tubing must be no wider than six (6) inches on both sides.
10.4.4 Must have check valves.
10.4.5 Limited to a maximum capacity of thirty-two (32) gallons.
ARTICLE 11: TIRES & WHEELS
11.1 Wheels:
11.1.1 Must be fifteen (15) inches in diameter and eight (8) inches in width.
11.1.2 Stickers are not required.
11.1.3 Must be reinforced steel only.
11.1.4 A steel or aluminum bead lock may be used on the right side wheels only, and may be mounted on the outside of
the wheel so long as it does not add over three-quarters (3/4) of an inch to the overall width of the wheel.
11.1.5 Homemade mud caps are not allowed.
11.1.6 Wheel covers are allowed on right side wheels only.
11.1.7 Wide five wheel adaptors are not allowed.
11.1.8 Steel or aluminum spacer between hub and wheel is allowed, but overall width of racecar cannot exceed seventy-
eight (78) inches.
11.1.9 Aluminum or steel lug nuts are allowed.
11.2 Tires:
11.2.1 American Racer G60 or KK-704 (stamped or non-stamped) tires are allowed. All non-stamped tires must be asphalt
(no dirt). Some events may allow an alternative tire. Check your entry form or call (515) 832-7944 to verify.
11.2.2 Softening is not allowed. Any driver caught softening tires shall be fined, suspended and shall receive no points
money. Refer to Rule 2.16.4 for clarification.
11.2.3 Grooving and siping is allowed.
11.2.4 Recaps are not allowed.
ARTICLE 12: BRAKING SYSTEM
12.1 Must be operating on all four wheels and must lock up all four wheels during inspection.
12.2 Must have caliper and rotor on all four wheels. Vented rotors are required on front wheels.
12.3 Electronic brake actuators are not allowed.
12.4 Calipers may not be lightened and must be O.E.M.
12.5 Steel or aluminum single-piston O.E.M.-type calipers are allowed.
12.6 Rotors must be steel and may not be lightened or drilled. Rotors may be re-drilled for different bolt patterns or larger
studs.
12.7 Front-to-rear or let-to-right (but not both) brake bias is allowed.
12.8 Brake shut-offs are not allowed.
12.9 Brake lines must be visible.
ARTICLE 13: DRIVE SHAFT
13.1 A loop is required and must be constructed of at least one-quarter (1/4) inch by two (2) inch solid steel. Loop must be
mounted no more than six (6) inches from the front of the drive shaft tube. Alternatively, two (2) loops of one-quarter (1/4)
inch by one (1) inch solid steel fastened to cross member are allowed.
13.2 Must be painted white and made of steel.
ARTICLE 14: TRANSMISSION
14.1 O.E.M. three-, four- and five-speed and automatic production-types allowed.
14.2 “In and out” boxes are not allowed.
14.3 Must all be clutch-operated.
14.4 Bert and Brinn transmissions are allowed. With motor running and racecar in stationary position, driver must be able
to engage racecar in gear and move forward, then backward, at time of inspection.
14.5 Clutch must be inside of bell housing for O.E.M. production-types.
14.6 One (1) forward gear and one (1) reverse gear must be in working order, plus a neutral position, and must be able to
be shifted by driver.
14.7 Clutch-type transmissions must be equipped with an explosion-proof steel bell housing. Aluminum must be SFI-
approved (GM bell housing is not SFI approved).
14.8 Automatic, Bert or Brinn transmissions must have a guard two-hundred seventy (270) degrees around flex plate or
flywheel, and must be constructed of at least one-quarter (1/4) inch steel. Alternatively, automatic transmissions may utilize
an SFI-approved aftermarket guard.
14.9 All racecars must have the capability of starting without being pushed or pulled.
ARTICLE 15: REAR END
15.1 Any passenger car- or truck-type is allowed. No aluminum allowed except lowering blocks, axle cap and drive plate.
15.2 Quick change is optional: Steel tubes only; ten (10) inch ring gear only; pinion and carrier bearings must be tapered;
titanium is not allowed; wide-five wheel patterns are not allowed; aluminum spools are permitted. Magnesium will be
permitted until such date that the cost increases, at which time only magnesium rear ends purchased prior to that date will
be permitted and must have original serial number.
15.3 No cambered rear ends (one-piece drive flange only).
15.4 No traction devices allowed (includes Gold Track, True Track or similar type components).
ARTICLE 16: ENGINE
16.1 Must be able to be used in conventional passenger car without alteration. Motor mounts may not be removed or
altered. Castings and fittings may not be changed. Machine work on outside of engine, or on front or rear of camshaft, is
not allowed.
16.2 No total “dry sump” systems allowed. “Wet” system must be operative.
16.3 Cooling system may be modified. Radiators and oil coolers must not protrude above interior.
16.4 Any American make may be used. Rear of engine (bell housing flange) must be mounted at least seventy-two (72)
inches forward from the center line of the rear axle - no tolerance.
16.5 Offset must be within two (2) inches of centerline of front cross member.
16.6 Must be a minimum of eleven (11) inches from ground to front center of crankshaft.
16.7 Steel blocks only – no aluminum or titanium.
16.8 Overflow tubes must be directed toward the ground and inside the frame rails.
16.9 Radiator must be mounted in front of engine.
16.10 Wiring elements must be accessible for technical inspection. Any racecar advancing spots and missing will be
subject to disqualification.
16.11 Tri-Y headers are not allowed.
16.12 Exhaust system and/or mufflers must be mounted in such a way as to direct spent gases away from the cockpit and
away from areas of possible fuel spillage.
16.13 Mufflers are recommended. Mufflers may be required at some events. Check your entry form or call (515) 832-7944
to verify.
16.14 Spoiler height (Article 4, Rule 4.12) and overall racecar weight (Article 17, Rule 17.1) shall be determined by the
engine combination utilized.
16.15 Engine Option #1 - Flat Tappet/Steel Head Engines:
16.15.1 Stock diameter lifters only. Mushroom lifters are not allowed.
16.15.2 Stud girdles and shaft rockers are allowed.
16.15.3 Engine components must be of matching manufacturers (i.e. Chevy for Chevy).
16.15.4 Minimum overall racecar weight will be two-thousand four-hundred (2,400) pounds.
16.15.5 Eight (8) inch spoiler allowed (see Article 4, Rule 4.11).
16.16 Engine Option #2 - Brodix Aluminum Spec Head Engines:
16.16.1 Approved product numbers for the BRODIX Aluminum Spec Head are as follows:
Chevrolet - SP CH USMTS
Ford - SP FO USMTS
Mopar - SP MO USMTS
To contact BRODIX or to find the dealer nearest you, visit www.brodix.com or call (479) 394-1075.
16.16.2 Roller cams are permitted.
16.16.3 Removing, relocating, grinding, polishing or defacing of any cast letters or numbers is strictly forbidden.
16.16.4 May be angle milled, but valve angle must remain within one (1) degree of original manufactured specification.
16.16.5 Valve guides must retain original angle and spacing as manufactured. Valve guides may not be tapered, thinned
or shortened whatsoever.
16.16.6 Absolutely no welding or adding material of any kind.
16.16.7 Removal of material is not allowed, except for pushrod clearance. Factory CNC chamber may not be altered in
any way.
16.16.8 Absolutely no enlarging, relocating or other altering of any bolt hole, dowel hole or threaded hole, except to spot
face bolt holes after angle milling.
16.16.9 Heli coils may be used for repairs.
16.16.10 Absolutely no grinding or polishing of any kind anywhere on the casting, except for pushrod clearance.
16.16.11 Internally repaired BRODIX Aluminum Spec Head must be recertified by BRODIX.
16.16.12 BRODIX Aluminum Spec Head checking fixtures will be used by officials to check all specifications and
dimensions.
16.16.13 Minimum overall car weight will be two-thousand four-hundred (2,400) pounds.
16.16.14 Eight (8) inch spoiler allowed (see Article 4, Rule 4.11).
16.16.15 Any driver caught breaking any of the above rules shall be subject to penalties in Rule 2.16.4. No points money
will be awarded to any driver breaking these rules.
16.17 Engine Option #3 - Aluminum or Steel Head Engines (with stock valve angle):
16.17.1 Stock valve angle heads only. Roller cams are permitted.
16.17.2 Raised intake runner heads are not allowed.
16.17.4 If utilizing aluminum heads, racecar must have fifty (50) pounds in front of mid-plate.
16.17.5 Minimum overall car weight will be two-thousand four-hundred (2,400) pounds.
16.17.6 Five (5) inch spoiler allowed (see Article 4, Rule 4.11).
16.18 Engine Option #4 - Aluminum or Steel Head Engines (with non-stock valve angle and raised intake runner
heads):
16.18.1 Roller cams are permitted.
16.18.2 If utilizing aluminum heads, racecar must have fifty (50) pounds in front of mid-plate.
16.18.3 Minimum overall car weight will be two-thousand five-hundred (2,500) pounds.
16.18.4 Five (5) inch spoiler allowed (see Article 4, Rule 4.11).
16.18.5 NOTE: This engine combination will not be allowed in 2008. Stock valve angles will be required.
ARTICLE 17: WEIGHT
17.1 The minimum overall racecar weight for racecars utilizing the Flat Tappet/Steel Head Engine (Article 16, Rule 16.15),
Brodix Aluminum Spec Head Engine (Article 16, Rule 16.16) or Aluminum or Steel Head Engines with stock valve angle
(Article 16, Rule 16.17) shall be two-thousand four-hundred (2,400) pounds. The minimum overall racecar weight for
racecars utilizing Aluminum or Steel Head Engines with non-stock valve angle and raised intake runner heads (Article 16,
Rule 16.8) shall be two-thousand five-hundred (2,500) pounds. If utilizing aluminum heads, racecar must have fifty (50)
pounds in front of mid-plate (this does not add to the overall racecar weight).
17.2 Ballast:
17.2.1 May not be mounted in cockpit, or outside of body or hood area.
17.2.2 Must be securely mounted, painted white and clearly marked with the car number.
17.2.3 Must be attached with at least two (2) one-half (1/2) inch bolts.
17.2.4 May not be attached to rear bumper.
ARTICLE 18: SAFETY
18.1 It is recommended that each racecar have built-in fire extinguishing equipment, but cannot be of the dry powder type
(must be Halon 1211 or equivalent).
18.2 Drivers should have in their pit area as part of their equipment, at all times, a fully charged dry chemical, Halon (or its
equivalent) fire extinguisher. Ten (10) or thirteen (13) pound fire extinguishers are highly recommended.
18.3 Driver must wear required helmet, fire suit and five-point safety harness whenever the racecar is on the racetrack.
This includes during track packing, warm ups, hot laps and races.
18.4 Helmets are mandatory and must be an approved SHCA or Snell-type full coverage.
18.5 Helmets should accompany driver and racecar at time of inspection.
18.6 Helmets of at least Snell SA2000 or SA2005 rating are mandatory.
18.7 Complete one- or two-piece fire suits of a flame retardant nature must be worn by all drivers at all times when the
racecar is on the racetrack. This includes during track packing, warm ups, hot laps and races.
18.8 Fire-resistant gloves are mandatory. Fire-resistant shoes are highly recommended.
18.9 Five-point safety belts, sub-belt and shoulder harness is required. Factory-type shoulder belts or straps are not
allowed.
18.10 Metal to metal buckles are required on shoulder and seat belts.
18.11 Shoulder harness must be mounted securely to the roll cage. It is recommended that seat belts and shoulder
harnesses not to be more than one (1) year old.
18.12 Where the belt passes through the seat edges, it must have a grommet installed, be rolled and/or padded to
prevent cutting of the belt.
18.13 Full-size window net mounted in the left side driver’s window opening and/or approved racing arm restraints are
required. Window net mounts must be welded to the roll cage. All bars around the driver must have approved roll bar
padding. If driver is utilizing arm restraints and official can pull driver's arm out of cockpit, driver will not be allowed to
compete.
18.14 Fire-resistant safety neck collars are mandatory.
ARTICLE 19: CLAIMING PROCEDURES
19.1 Any driver possessing a valid USMTS license may have the opportunity to execute a claim. All drivers, licensed or
not, are subject to being claimed.
19.2 Any driver in the main event is eligible to claim the shocks or MSD ignition box of another driver’s racecar in the main
event.
19.3 Claims must be made within five (5) minutes of the completion of the main event. Claimed items must be removed at
the racetrack and within one (1) hour after claimed driver accepts the claim.
19.4 Immediately following the conclusion of the main event, without returning to his/her pit location, driver making claim
must drive racecar, under its own power, directly to the designated claim area. Claiming driver shall select from eligible
racecars in the main event, and must declare that choice to the official overseeing the claim area. If the claiming driver
decides at that time that he/she does not wish to execute the claim, he/she will nonetheless be charged one claim on
his/her claim card. If multiple drivers declare an intention to claim, the driver finishing farthest back in the main event will
select first.
19.5 Claiming driver must present cash to official overseeing the claim area at the time the driver declares intention to
claim. The cash price of the claim shall be $100 each for shocks or $250 for MSD ignition boxes. Drivers claiming shocks
may claim one (1) or more shocks during a single claim.
19.6 Driver is allowed one (1) claim per event, regardless of the outcome of that claim.
19.7 Only drivers and officials are allowed in the designated claim area. Any other participants associated with that
racecar that enter the claim area will be subject to disqualification, fine and/or suspension.
19.8 Only a driver may claim, and only the claimed driver may agree to accept or refuse the claim. The first statement of
acceptance or rejection of the claim by the claimed driver is binding.
19.9 Any driver refusing to accept a claim will forfeit all cash winnings and contingency awards for that event. Any driver
refusing to accept a claim will forfeit all USMTS points (national, regional or otherwise) accumulated up to, and including,
the event at which the claim was made. Furthermore, driver will forfeit the privilege to make a claim for a period of one (1)
year from the date on which the claim was refused.
19.10 Sabotage of claimed parts will result in driver being suspended from all USMTS events for fourteen (14) days and
until a $1,000 fine is paid and received at USMTS headquarters. Driver will also forfeit all USMTS points (national, regional
or otherwise) accumulated up to, and including, the event at which the sabotage occurred. Furthermore, driver will forfeit
the privilege to make a claim for a period of one (1) year from the date on which the sabotage occurred.
19.11 Driver may claim a maximum of three (3) times during the calendar year.
19.12 The USMTS reserves the right to disallow any claim at their discretion.
19.13 At their discretion, officials reserve the option to claim the shocks or MSD ignition box of any racecar. Officials may
exchange MSD ignition boxes at any time.
19.14 Disqualification shall not affect a legal claim. Claimed parts will be removed and transferred prior to any penalties
being assessed.
APPENDIX A: BODY SPECIFICATIONS
AMENDMENTS
December 17, 2006
• Rule 16.16: Amended for grammatical clarity only (no material rule changes).
• Added Table of Contents.
January 22, 2007
• Rule 3.7.4: Amended rule regarding provisionals.
• Rule 3.8.4: Amended rule regarding Top Dog Bonus.
• Rules 16.15-18: Amended engine rules for clarification of options and penalties.
January 31, 2007
• Rule 15.2: amended rule regarding quick changes with magnesium material.
March 5, 2007
• Apendix A: added 2007 Body Specifications graphic.
• Rule 2.6: Clarified required decal position for awards eligibility.
For rules clarifications or questions, call (515) 832-7944 or email tech@usmts.com.
USMTS Modifieds
