The rules and specifications in this guide are intended to make all Midwest Motorsports sanctioned events a safe, fun, and fair experience.

Rules Knowledge: Everyone who registers for a Midwest Motorsports sanctioned event as a car owner or driver and all individuals who enter the pit area or racing surface during a sanctioned event are required to know these rules and any supplementary rules or instructions concerning the event and must abide by them.

Responsibilities: The car owner and or driver is responsible for the safe condition and operation of any car at race events. The track owner is responsible for providing a properly maintained and safe place for the event.

Spirit and Intent: This manual provides technical specifications and inspection procedures to establish the legality of engines, racing chassis, and associated components used in Midwest Motorsports  sanctioned events. Officials at Midwest Motorsports events are authorized to decide of any change or design is an attempt to “beat the rules.” Also, just because a technical specification or part is not described in this manual does not imply or guarantee its legality. In these cases, the race officials will disqualify an entry, and the Midwest Motorsports will uphold the disqualification based on the “spirit and intent” of these rules. “Just because this Technical Manual does not state that you cannot, do not assume that you can.” While these rules are intended to be a guide for technical inspectors, they will also provide guidelines for Midwest Motorsports members in preparing legal engines and entries.

Class Entry Fees: Entry fee’s vary by class.  Please look on website for all entry fee’s.  NO checks will be accepted at track.

Pit Pass:  Pit passes will vary per event.  NO checks will be accepted at track.


General: Drivers must be in good standing to enter Midwest Motorsports sanctioned events. Drivers must abide by any age restrictions in any given class.

Driving Ability: Race director has the right to refuse any junior driver from participating in a Midwest Motorsports event based on his or her driving ability.

 Competitor Age Requirements: All Midwest Motorsports classes have a minimum “competition age” requirement for drivers; some classes also have a maximum age limit. Both limits are stated in the class descriptions.

Competition Age: A driver’s actual age as of December 31 shall establish his/her “competition age” for the next calendar year. EXAMPLE: A Driver is competing in a class that has a maximum age of 15 years. If the driver is 15 on December 31, 2013, the driver may compete in that class for the entire 2014 calendar year, no matter when the sixteenth birthday occurs.

Advancing in Age Category: Drivers who are in the “option year” may compete in the lower age class for the entire calendar year; however, if a driver moves up an age class, he may not compete at the lower age at any Midwest Motorsports events for the remainder of that year. EXAMPLE: Driver is 8 at the beginning of the 2014 season but turns 9 during the 2014 calendar year. He may race either in Junior  or Senior classes. If the driver chooses to move up to Senior  at a Midwest Motorsports event, he may not return to Junior status. Racer may also start season as a Senior, but once again may not revert to Junior.

 Attained Age: Any driver that is racing the Junior  class must be the actual age of 8 years. This is the attained age of the driver. Any driver who is moving up to Senior classes must be the attained age of 9 or 8 but turning 9 in calendar year 2014.

Attempting to Falsify Documents: Falsification of any competitor’s age or any other information required on the membership application form will subject that member to disqualification and suspension of membership privileges. Family Members are entirely responsible for supplying accurate information for the Minor Members.

Driver’s Physical Condition: The Race Director may refuse to allow a driver to race based on the driver’s physical condition or advice from track medical personnel or from a hospital or other medical facility.

Disabled Drivers: Drivers with disabilities wishing to compete in Midwest Motorsports events may apply in writing for the waiver of a specific rule or specification. The request may not negatively affect safety and may not provide a significant performance enhancement.


Practice: A competitor must be entered in at least one class before going onto the track for official practice, qualifying, or racing. Failure to do so may result in disqualification for that event and possible suspension. You are allowed to practice only with the classes that you are entered in for racing unless approved by Race Director.  If you are caught practicing in any class you are not entered to race in you will be penalized.

Official Entry: The official entry at all Midwest Motorsports events includes the driver, car frame, and engine, and handler. Once the car passes through scoring on an official lap, the car frame and engine cannot be changed without permission of the Race Director. If an approved change is made, the entrant will be subject to tech of all engines and/or chassis used during the heat or feature races.

 Relief Driver: No relief driver will be allowed at any event.

Payment of Entry: Failure to properly pay registration, entry, an/or pit pass fees, including uncollectible checks or cancelled credit card transactions, may submit individual to disqualification from the Midwest Motorsports event and possible suspension of membership privileges. No points will be given to any entry that has not been paid in full.


Behavior: All drivers shall conduct themselves in a safe and orderly manner. Physical violence or abuse of any individual, official, participant, or spectator at the site of an event will subject the offender to immediate disqualification, ejection from the event site and possible suspension of membership status. The Race Director must report such incidents to the race promoter within 24 hours of the event’s conclusion with the recommendation for disciplinary action.

Verbal Abuse: Any verbal abuse will be subject to unsportsmanlike conduct penalties. This rule applies to any person on track property. Verbal abuse to any official or partner of Midwest Motorsports at any time by a member will result in possible suspension or termination of membership.

Banned Substances: No alcohol is allowed in the pit area during a Midwest Motorsports event. Local track rules will dictate whether alcohol may be consumed on the track property after an event. No driver shall be under the influence of any medication that may interfere with the driver’s ability to operate a racing vehicle in a safe manner.

Pit Crew: Pit crew and family members are the responsibility of the drivers. Any unsportsmanlike conduct by a crew member or family member will result in action being taken against the driver.

Pit Area: All persons entering the restricted area of a Midwest Motorsports event site must sign all insurance-related documents as prescribed for that event. Failure to do so will subject the individual to disqualification, immediate removal from the restricted area and/or suspension of membership privileges.

Drivers’ Meeting: All drivers must attend drivers’ meetings. If you are caught not attending meeting you will be penalized by qualifying first in all of your entered classes for the weekend.  Drivers will also be docked 10 drivers points if they are caught not attending a required drivers meeting.  Roll call may be taken so don’t miss a meeting.  NO EXCEPTIONS OR EXCUSES!!!

Transponder Scoring: Where transponders are used, it is the driver’s responsibility to ensure that the transponder is securely and correctly mounted and functioning before entering the track for qualifying or racing. Failure of the electronic scoring system to pick up the transponder signal may prevent the competitor from being timed for qualifying or scored in the event; however, if a transponder fails to function during a race, the Race Director shall contact the finishers immediately in front of and immediately behind the non-scoring car and consult with the other race officials to be sure of its finishing position. If the position can be confirmed, the Race Director can award the non-scored car its correct position.  Transponders are to be placed on the left nerf bar on the front bar.  If they are found to be in another location of the gocar you will be subject to loosing your scoring position.  It is the racers responsibility to make sure that the transponder is placed in the correct position.    NOTE: In the event a race facility does not have a transponder system, manual scoring will occur.


Course Boundaries: Course boundaries such as discs, pylons, or other markings designated by the Race Director must be observed by all drivers at all times. Practice pylons are used to help prepare the track for optimum racing conditions. Any driver hitting a pylon during a practice session will be black flagged from that round of practice and must immediately leave the racing surface.

Stopping on the Racing Surface: If a driver is forced to stop on the racing surface during practice or a race, the competitor must raise both hands to signal approaching drivers that he or she is immobile. The driver is also responsible for moving the car to a safe area as quickly and safely as possible.

 Re-Entry to Track: There will be no re-entry once the green flag has dropped. If a competitor leaves the track, he or she will be scored in accordance with the number of laps completed.

Slowing Down on the Racing Surface: When a car slows from racing speed on course, the driver must signal to approaching competitors by raising a hand high enough to be clearly visible from behind. This requirement includes slowing to enter a pit entrance lane during practice, heats or racing.

Unsafe Driving: Unsportsmanlike driving will be determined by the race officials. Bumping or erratic driving such as blocking or pushing should be avoided. If, in the judgment of the race officials, a competitor shows unsportsmanlike driving, he or she may be disqualified and is subject to further penalties. Unsafe driving will be the sole call of the Race Director and Head Flagman. Competitors who are deemed to be driving in an unsafe manner will be black flagged and must leave the racing surface in a safe and courteous manner.

Lapped Cars: Participants about to be lapped by faster competitors are responsible for knowing of the approaching faster cars and must move out of the racing line until the end of the race. Lapped competitors will observe the black flag and must move to top of racetrack and exit track as soon and safely as possible.

Initial Start of Race: Double file initial start. Front 2 cars must be within an acceptable distance of each other (preferably side by side). Start will be determined by the Flagman and/or Race Director. If after 2 attempts (or fewer, if Race Director sees fit), drivers cannot achieve a fair start, field will be lined up single file and started.

 Exiting the Track: At the completion of any race session all cars exiting the track must proceed to the area designated by the Race Director or they will be ineligible for points and/or awards. All cars must cross scales. NO DRIVING IN THE PITS! This will be cause for immediate disqualification.

 Accidents: Race officials will, at their discretion, inspect all cars involved in an accident. Officials may also inspect all safety apparel after such an incident.

 Crew Members: Pit crew and family members are not permitted on the track at any time the track is active. The only exception to this rule is if the Race Director or other race official directs non-drivers to the track. If your pit crew or family member enters the race track without permission then you will be black flagged from the race.

Injured Driver: If a driver involved in an accident appears to be injured, the Race Director may refuse to allow the driver to continue to race. If the Race Director decides that unsafe or unsportsmanlike driving caused the red flag, the offending driver(s) will be placed at the back of restart order. The Race Director may disqualify the offender(s) if he deems the infraction to be serious enough to warrant. The Race Director may also take disciplinary action.

Accident Weigh-In Procedure: If the medical personnel on site state that a driver needs to be transported due to an accident, the driver will receive finish position points regardless of whether he/she is able to weigh-in or not. If the medical personnel keep a driver for examination, the Race Director may waive the weigh-in requirement if the driver’s class has already cleared the scale.

 Car Repairs: If a race if red-flagged for any reason NO repairs or touching of go-cars is permitted.  If a race is stopped under a yellow flag then you must be in your restart position and will be allowed to make minor repairs to your go car with permission or assistance from a track official only.  NO ONE from your pit crew is allowed to enter the race track without permission from track officials.  If your pit crew enters the race track without permission then you will be black flagged from the race.  A complete restart occurs when the field has not completed a full lap under green. The Race Director may disqualify a damaged car for safety reasons.

Race Restarts: Restarts after a yellow or red flag will revert to the most current order of last completed lap. If no laps have been completed, the field will revert to lineup order. Cars involved in the incident causing the delay will be put to the rear of the field at the Race Director’s or Head Flagman’s direction.  If you spin to avoid an accident then you will be placed back in your original position prior to the caution.  A lap is considered to be complete when all cars on the lead lap have passed the finish line or scoring loop.

Complete Race: The finishing order of races completed due to a red flag or completed under a full course yellow will be the running order of the last completed lap. The finishing order of races completed under waving yellow and checkered flags or red and checkered flags will be as follows:

A. Upon displaying the white flag to the leader, the race is considered complete. If there is an incident prohibiting the completion of the race and the checkered flag is waived with either the yellow or red flag the race will be considered complete and the finishing order will revert back to the position achieved when the leader crossed the finish line at the white flag.

B. If any cars have passed the finish line (scoring loop) before the yellow or red flag was displayed, they shall be scored as they finished. All other cars will be scored based on their positions on the last completed lap.

C. The competitors responsible for the red or yellow flag will be scored at the rear of the last completed lap they were running or be disqualified. A lap is considered to be complete when all cars on the lead lap have passed the finish line (scoring loop).

D. There will be a 10-minute time limit on all feature races. At the 10-minute mark, the Flagman will display the white flag to the leader at his or her next crossing of the scoring loop, no matter how many laps have been completed. The race will be complete after the checkered flag falls.

Grid: There is to be only one person with each driver in the grid area. Entrant may be ejected from event if more than one person is in the grid.

 Points after Disqualifications: In the event a driver is disqualified for unsportsmanlike conduct or driving, the driver must use that race finish in his or her national points and may not use the race as a “drop.” In the event of mechanical failure on the track, post-race engine, oil, or fuel tech, or being underweight, the race may be used as a “drop race.” However, if the driver is disqualified repeatedly for any reason, he/she could be subjected to the same penalty as unsportsmanlike driving or conduct. Any attempt to counterfeit or remanufacture OEM parts will result in a disqualification, and the race may not be used as a “drop race.”

Scratch Entries: If an entrant is scratched, the space shall be filled (a) if on the track, by moving cars forward directly and (b) if still on the grid, by crossing over to make the starting grid proper, based on the cars available for the race based on qualifying position.

Ninety Second Rule: All drivers have 90 seconds to start from the grid and enter onto the track at the beginning of the race. The competitor must be on the grid, in starting position, in the car, and ready to race for the 90 second rule to be in effect for that competitor. Once the Grid Official radios to the Flagman and Race Director that the grid is clear and all cars have entered onto the track, the 90-second rule no longer applies. If a car stalls after that and enters the hot pit to restart, he may do so; however, the race can start at any time and if the race starts before driver leaves the grid, he may not re-enter.

Race Format

All entrants will follow the same format.  Practice, at least one heat race, Consi(if needed) and Feature.

Pill Draw: Upon payment of entry fee each entrant will draw a number. Heat race line ups will be determined by this sequence.

Heat Race: Class will be divided up equally and heat races will be used to determine feature lineups. In some cases a roll of dice invert may be used.

Consi Races:  ALL consi races will be 8 laps

Feature Races:  All feature events will be scheduled for 12 laps. Unless otherwise stated before start of event.(Please see sections, COMPLETE and INCOMPLETE RACES for exceptions) Race director may at his discretion shorten race length.

A. Race director, may at his discretion, shorten the number of feature laps due to time Constraints.

B. If transponders are being used it is the competitor’s responsibility to have a transponder mounted on his or her car. If no transponder is attached to car, the competitor will not be scored.


Pit Area: That area of the track which requires a pit pass for entrance is restricted and under complete control of the race officials. The Race Director may limit the number of pit crew members who can enter this area to a set number per entry. All persons entering this area, whether connected with a driver or not, are subject to all regulations regarding deportment and behavior and may be ejected from this area by the officials in charge.

Insurance Regulations: Everyone, including race officials and track workers, who enter the track’s restricted area must comply with all registration procedures and insurance. Failure to do so or entrance by fraud, deceit, or passage into the area except by designated gates will subject an individual to immediate removal from the restricted area and possible suspension of membership privileges. Everyone receiving a pit pass is required to sign all insurance documents. There will be no signing of these documents by any person other than the actual entrant receiving the pit pass.

 Open Flame Policy: The use of open flames to treat or heat tires is prohibited in the grid areas. An area away from fuel or other flammables must be designated for welding. Each person is responsible for the disposal of their own fuels, oil, and other liquids. Containers may be provided by the track but this is not mandatory. There will be no dumping of harmful products on the grounds of any facility hosting an event. Failure to do so will subject individual to suspension.

Driving in the Pits: Cars may not be driven in the restricted pit area except for specific areas designated by the race or track officials.

 Personal Transportation: All transport vehicles (bikes, motorcycles, skateboards, ATV’s) or any other motorized vehicle is not allowed in the pits without express consent from the Race Director.


Green: Track is clear and ready for cars at race speed. Indicates the start or re-start of race, qualify, or practice.

Red: When the red flag is displayed, all drivers are to bring their cars to a stop as soon as safely possible.

Blue: This flag warns lapped traffic that another car is approaching and the lapped car is to move up and out of the racing line for the duration of the race. Failure to move out of the racing line will result in disqualification.

Black: A rolled black flag is a warning to a driver for rough driving, unsportsmanlike conduct, or other infraction. A warning may or may not be given depending on the offense. A waving black flag tells a driver to immediately leave the track surface in a safe and sportsmanlike manner. The black flag can be waved for conduct on the track or for a mechanical issue. Failure to leave the track will result in disqualification or suspension.

White: Tells the field that there is one lap remaining in the race. The white flag is not mandatory; it is a courtesy to the drivers.

Checkered: Indicates to the field that the session is over, whether it is practice, qualifying, or a race.

Crossed Flags: Indicates the race is half over. This is not mandatory.

Two Rolled Flags: Indicates two laps remain in a race. This is not manda


Race Director: The Race Director is Midwest Motorsports race official with responsibility for all aspects of a Midwest Motorsports events. He or she is in charge of all other race officials and personnel and has complete charge of the cars while on the track. The Race Director is responsible for enforcing all Midwest Motorsports rules and regulations stated in the rule book, tech updates, and all supplementary rules in force for an event. The Race Director may direct the Head Flagman to warn competitors of unsportsmanlike or unsafe driving by pointing a rolled black flag. He or she may direct the removal of a driver from the track for driving infractions or defective equipment by waving a black flag. The Race Director has the authority to hand out more severe penalties for unsportsmanlike driving or conduct.

Flagman: The Head Flagman is in charge of the corner marshals and is responsible for making flag signals to drivers under the direction of the Race Director. The Head Flagman and Race Director shall hold pre-race drivers’ meetings to brief competitors on the use of flags, special track conditions, and other information.

Technical Inspector: Technical Inspectors are in charge of pre- and post-race inspections for both safety and compliance with technical specifications. The Technical Inspectors and assistants will verify compliance with states specifications to certify all finishes at Midwest Motorsports events as official.

Head Score Keeper: The Chief Scorer is in charge for timing and scoring.

Grid Steward: The Grid Steward is in charge of grid area, including all officials, drivers, and pit crew in these areas. The Grid Steward will direct gridding and maintain orderly conduct in these areas.

Cornermen: The Cornermen will be posted around the course to assist the Race Director and Head Flagman in and safe and orderly running of the event.


Protest: All protests of technical specification legality must be submitted in writing by a legal entrant from the same class in which the alleged violation occurred. You can pick up an official Midwest Motorsports Protest form from either the Race Director or the Technical Inspector. If a car specification is protested, the protesting driver’s own car can also be subject to full inspection. If an engine specification is protested, the protesting driver’s engine can also be subject to full inspection. VERBAL PROTESTS WILL NOT BE ACCEPTED.

Protest Procedure: All protests must be submitted in writing to the Race Director (or designated official) of the Midwest Motorsports event within 30 minutes after completion of the race that is being protested. The written protest must state the exact reason for the protest.  If you are protesting a competitor’s chassis or body work then a $50.00 protest fee is required and is non-refundable.  If you are protesting a competitors motor then a protest fee of $150.00 is required.  It the competitor is found to be illegal than $100.00 is refunded.  If the competitor is found to be legal that $50.00 will be awarded to the competitor, $50.00 to tech director, and $50 to Monsters of the Midwest.  Anyone filing a protest on another competitor’s equipment must keep his or her own equipment in the impound area following the race. Once a competitor’s equipment has been removed from the impound area, he or she has waived the right to file a protest on another competitor’s equipment, regardless of whether 30 minutes have elapsed from the completion of the race in question.  If any equipment or motors are found to be illegal you will be disqualified from the event and receive last place points.


 Probation: A warning. The Promoter or Race Directors may place any member on probation for just cause. Amount of probation will be decided by the promoter and race director.  Any further infraction while member is on probation could result in suspension.

Suspension: The Promoter may immediately suspend (1) member who violates any rule in this manual that lists suspension as an appropriate penalty, (2) any member whose actions the Promoter deems to be sufficiently detrimental to the Promoter or its members, or (3) any member who is on probation and violates the terms of the probation.

Duration of Assigned Penalties: A probation or suspension will be in effect until the Promoter and Race Director meeting where they will establish the final terms and duration of the disciplinary action.

Notifying Members of Penalties: Midwest Motorsports Marketing  Promoter will notify members placed on probation, suspension, or termination in writing within ten (10) business days of the action.

Points While Under Suspension: During a suspension, a driver will receive zero points for any race missed while under suspension, and these races cannot be used as drop races.


 Illegal Parts: Any engine or other component found to be illegal during technical inspection may be impounded at the discretion of the Head Technical Inspector or Race Director for later inspection.

Equipment Deemed Unsafe: Any car or part that the race officials find to be unsafe may be impounded for review and/or inspection at a later time by Midwest Motorsports Marketing at the race officials’ discretion.


Post Race Tech: Top 3 heat competitors in each class will be held for technical inspection after heat races. Top 5 competitors cars and motors will be held in impound area after the completion of each race feature. Any car may be inspected at any time at the request of the Technical Inspector or Race Director.

Awards:  Midwest Motorsports will dispose of all trophies and awards not claimed within 15 days of first presentation. Competitors are responsible for any shipping and handling costs incurred to get the award to them. Midwest Motorsports Marketing  will ship year end awards at racers expense. Midwest Motorsports Marketing  will bring series awards to the next event. After 15 days awards will be destroyed or donated to charity


 Neck Braces: All drivers in all series must wear an unaltered collar-type neck brace designed for motorsports use when on the track. Any driver losing a neck brace while on the track will receive a black flag and will be removed from the track immediately.

 Clothing: Drivers are required to wear full body 1 piece racing suites  to prevent major burns  or minimize abrasions. No sweat pants. Shoes, socks, and gloves are mandatory. Ballast weight may not be added to the driver, i.e. addition of weight to driving apparel, weight belts, ankle weights, etc., without written permission from the Race Director. If requested, driver must supply name of manufacturer of driving apparel for comparison purposes. NOTE; Driver may not have hair extending below helmet line. Hair must be kept inside helmet or tucked into racers uniform.

Pre-Tech: All driver personal safety equipment is subject to pre-race tech inspection and is subject to re-inspection at any time. Any safety item may be subject to inspection at post race inspection. All weight bolts must be either pinned or double nutted.

  Pre-Race Inspections

The primary purpose of pre-race inspection is to establish that safety requirements have been met by each competitor prior to entering the track at speed. It is the responsibility of the entrant to provide for pre-rece inspection, the chassis, helmet, neck collar brace, exactly as to be raced that day. Passing pre-race tech does not guarantee post race legality.


All steering assembly bolts and nuts, including spindle bolts must be cotter-keyed or safety wired. Any fastner (nut bolt, ect) of a component the would enable movement or adjustment of spindles such as castor, camber must be drilled for and utilize either cotter-pin or safety wired. All cars must have brakes to be able to brake both rear wheels equally and adequately. All bolts and nuts to be cotter-keyed or safety wired. All master cylinder and caliper mounting bolts to be cotter-keyed or safety wired. Brake disc bolts must use steel crimped locknuts or be cotter-keyed or safety wired. NO NYLOCK SYYLE NUTS ALLOWED!

Nose cones must allow for easy driver ingress, egress and removal from the car. It may cover foot area up to 3” rearward of both pedals in relaxed position, and must not interfere with the drivers ability to operate pedals. Weights must be white in color for visibility and must have your car number on them. Mounting of weight to nerf bars and rear bumpers is prohibited. Weights may be mounted on front bumper only if there is a front nose cone. Weights added to meet minimum car/driver weight must be bolted securely to the car with bolts of at least 5/16” in diameter. Weight in excess of 7 lbs must use two or more 5/16”bolts. All bolts must be cotter-keyed or double nutted. NO LOOSE WEIGHTS ALLOWED ON DRIVE

Any competitor may be subject to random oil and fuel inspections at any time. This includes in the hot grid. Midwest Motorsports Marketing  officials reserve the right to draw oil or fuel for testing prior to heats or feature races.

Helmets: Full coverage (full face) helmets designed for competitive motorsports use are mandatory and must comply with one of the following: Eye protection is required using a fullface shield integral with the helmet. Snell Foundation Specifications Legal Until 1998 K (car) 12/25/07 NO LONGER LEGAL FOR USE IN CARING EVENTS! 2000 SA and M 12/25/10 NO LONGER LEGAL FOR USE IN CARING EVENTS! 2005 SA and M 12/25/14 2005 K 12/25/14 SFI Specifications Legal Until 24.1 (Youth Helmet) 12/25/14 31.2a 12/25/14 41.2a 12/25/14 24.1/2005 (Youth Helmet) 12/25/14 31.1/2005 12/25/14 41.1/2005 12/25/14

Helmet must be in good condition and is subject to pre-race technical inspection. It may also be inspected if it is damaged in an accident. If the helmet shows any damage, NSP recommends that it be returned to the manufacturer for testing and recertification. Helmet must be secured with a strap. The driver is responsible for making sure that his or her helmet fits properly and is securely fastened before entering the racing surface. In the case of a minor, this is the parent or guardian’s responsibility. Failure to properly secure the helmet before entering the racing surface may result in disqualification.



All specifications apply to all Quarter and Half classes unless otherwise specified.


1. Height Quarter Midgets: ……………………. 50” maximum, including roll cage

2. Length  (Measurements include the bumpers)

Quarter Midgets: ………………………………………………… 84” maximum

Half Midgets: …………………………………. 76” minimum, 88” maximum

3. Tire Size Front Maximum 11” diameter , Rear maximum 12 1/2” diameter

4. Weight

Quarter Midgets: …………………………………………… Minimum 160 lbs.

Half Midgets: ………………………………………………… Minimum 170 lbs.

5. Wheelbase (Measured center to center of axle. Both sides must be within specifications.)

Quarter Midgets: ……………………………. 42” minimum, 56” maximum

Half Midgets: …………………………………. 50” minimum, 56” maximum

6. Wheel Tread  (Measured center to center of tires.)

Quarter Midgets: ……………………………. 28” minimum, 34” maximum

Half Midgets: …………………………………. 32” minimum, 36” maximum


1. Axle

1. A Axle, axle hubs, or axle nuts may not extend beyond the outer edge of the wheel rim.

1. B All rear axles will be made out of aluminum, titanium or steel only.

2. Battery

2. A All wet-cell batteries, which are mounted in the cockpit area must be enclosed and vented out of the cockpit area.

2. B All batteries must be securely mounted to prevent loss during operation.

2. C Battery and electronic ignition equipment not allowed on or in cars in Honda and World Formula classes.

3. Belly Pan

3. A The pan must extend from the front axle to the firewall.

3. B The ground clearance shall not exceed 3.5”.

3. C The belly pan must be constructed in such a manner as to comply with Article 4, Sec.. 2, Rule 13B.

D(1) Aluminum : minimum thickness 0.040”

D(2) Steel : minimum thickness 0.025”

D(3) No open holes in belly pan.

4. Body Section

4. A All cars must have a body which completely covers the driver’s legs, a tail section, and a housing which covers the engine. The tail section can be the engine housing.

4. B The body and tail section will not have any sharp edges.

4. C Round the edges of the body and tail section inward not outward for extra protection.

4. D There will be no sharp corners – such as square corners. Make all corners and edges rounded in shape so as not to cut – if in an accident.

4. E The majority of the bottom of the tail cone shall be no higher than the top of the bumper when normally installed. Access holes are allowed.

4. F If the belly pan or the body does not enclose the front end it must be enclosed by using heavy screening or metal sheeting meeting the following specifications.

4. F (1) Screening

Minimum material:………………………………………………. .Metal wire

Minimum material dimension: …………………………………….. 0.048”

Maximum mesh dimension: ………………………………..1/2” spacing

F. (2) Metal sheeting

Minimum material thickness: ……………………………………… 0.048”

Maximum hole diameter: ………………………….. 1/2” (if perforated)

4. G There will be no fenders, spoilers or air deflectors on roll cage, body, engine housing or tail section.

4. H Any radical changes in body, tail section, or side panels must be submitted for approval to the Technical Director and Race Director.

4. I All cars must have side panels on both sides of the cockpit and engine compartment. There must be a 2” min. diameter hole in the right side to access the flywheel for seal painting the nut.

4. J Maximum height of body is 28 inches as measured from the bottom of the lower frame rail (hood and tail cone).

4. K The side panel must extend a minimum of 6”, to a maximum of 22” in height, as measured from bottom of lower frame rail. Side panels will include everything from front bumper to rear bumper.

5. Brake

5. A Brake to be activated by a foot pedal.

5. B A minimum of one wheel brake is required, located on the rear axle, sufficient to lock the drive wheel(s).

5. C No plastic brake lines allowed.

6. Bumpers

6. A All cars must have front and rear bumpers.

6. B (1) All cars must have double bumpers with two connecting tubes welded in place.

6. B (2) All bumpers (front and rear) must not extend beyond three inches past the side of the main frame rail.

6. C The bumper tubes (front and rear) shall be mounted over each other with a maximum of 15 degrees rake as measured from the vertical. They shall have at least two inches radius bend on the ends and be mounted to the frame of the car in order to prevent hooking or lifting.

6. D The tubes should be no closer than two inches apart.

6. E The bumpers will be strong enough to be used by the handler to lift the car, must be fastened with 2 bolts, one on each side, and must be approved by the Safety Committee.

6. F Bumpers will be of metal construction. Titanium and/or composite materials shall not be used.

6. G Front and Rear bumpers to be bolted and bolts must be 6/32 to max 10/32 grade 5 or better. Minimum tubing wall thickness of 0.049”

7. Drive  Quarter Midgets:

7. A Drive must be direct, no clutches allowed.

Half Midgets:

7. B Drive may be either direct or clutched.

8. Drive Chain

8. A Chains and sprockets must not be exposed to driver or handler while race car is in motion.

9. Drive Wheel

9. A All cars must run right rear drive/left wheel is optional.

10. Engine


10. A(1) Continental AU7R

10. A(2) Continental 717

10. A(3) Detroit Engine DE7R

10. A(4) Deco Grand DE2R

10. A(5) Deco Grand DE7R

10. A(6) Deco #300

10. A(7) Honda 120

10. A(8) Briggs Animal

10. B HONDA 120 CLASS:

10. B(1) Honda GX120K1HX2* and HX2 6

10. B(2) Honda GX 120J1HX2

10. B(3) Honda GX 120 GCAHK-10085093 and up


10. C(1) Continental AU7R

10. C(2) Continental 717

10. C(3) Detroit Engine DE7R

10. C(4) Deco Grand DE2R

10. C(5) Deco Grand DE7R,

10. C(6) Deco #300

10. D HONDA 160 CLASS:

10. D(1) Honda GX160K1HX2* and HX2 6

10. D(2) Honda GX 160J1HX2

10. D(3) Honda GX 160 GCACK-1120414 and up

10. D(4) Honda GX 160 UT-2 HX2 GCBPT and up


10. E(1) Continental AU7R

10. E(2) Continental 717

10. E(3) Detroit Engine DE7R

10. E(4) Deco Grand DE2R

10. E(5) Deco Grand DE7R,

10. E(6) Deco #300



10. F(1) 4 Cycle, Single Cylinder

10. F(2) 253 CC maximum displacement

10. F(3) No blowers or fuel injection

10. F(4) Single Crankshaft

10. F(5) No Water Cooled Engines

10. F(6) No Free Spinning Flywheels

10. F(7) All Briggs World Formula/Animal based engines must use  scatter shield per QMA drawing.


10. G (1) Briggs and Stratton World Formula


10. H (1) Briggs and Stratton Animal


10. I(1) Air cooled only and no external liquid cooling devices

10. I(2) No blowers or fuel injection

10. I (3) No freewheeling type flywheels. Definition of type flywheel: they are the type whose fins continue to rotate after engine has been shut down.

10. I (4) Gearbox is not considered part of the engine; therefore, any type of gearbox may be used, except for Honda 120 and Honda 160, which must use stock gearbox and gear.

10. I (5) No Water Cooled Engines in any QMA Class.

10. I (6) No External Cooling Devices of any kind in any Class.

11. Engine Housing

11. A All cars are required to have a catch can if the engine is vented. All breathers, engine vents and catch cans are to be placed under the engine housing or tail section. (In case of an accident this would help prevent oil from flowing onto the driver.)

11. B The frame cannot be used as a catch can.

11. C Carburetors are to be completely within the engine housing covered in such a way as not to protrude.

11. D Due to today’s smaller tail section, the carburetor may have to be covered with a bubble or scoop, securely attached to the tail section. The bubble or scoop must either be completely closed or rear-facing so as to not capture air.

12. Exhaust System

12. A The exhaust system must extend outside of engine compartment.

12. B Any exposed portions of the exhaust system shall not be higher than the rear tire.

12. C No portion of the exhaust system may extend outside of a straight edge extending from the rear edge of the rear tire and the extreme rear of the rear bumper, must be intact at the scales.

12. D Forward exhaust pipe (including mufflers) shall not extend outside of the nerf bar.

12. E All Quarter Midgets and Half Midgets will run a 4 to 8 horsepower Briggs & Stratton Part 3294599 or equivalent. No holes in muffler baffles. Inside seam of baffle must be straight edged. (Note: Some seams may not be parallel in baffle) It is OK to weld a washer or nut on the flange for a place to apply safety wire. NOTE: See 12.G for Animal class exception.

12. F Honda 120, Honda 160, WF, Animal classes must utilize a tailpipe and muffler conforming to specifications published in the appropriate tech manuals. You cannot cut off the threaded inlet if it is to be used in Honda. Muffler rule: hand tight, turn back out, anything more than 1/2 turn – DQ.

12. G Animal classes may use ”candy cane” exhaust with RLV #4100 muffler.

12. H All quarter midgets and half midgets, if any part of the exhaust system comes off during any race, car may be brought in under yellow for repair, but must be repaired with no leaks by fall of checker flag, If not repaired properly this will be a DQ at the scales.

12. I All quarter midgets and half midgets, all exhaust must pass thru the muffler.

13. Firewall

13. A A metal firewall is required between the driver and the fuel tank.

13. B The firewall and belly pan must be constructed so as to prevent fuel from entering the cockpit.

13. C Allowable materials for firewalls are listed below:

13. C (1)Aluminum: Minimum thickness: 0.048”

13. C (2)Steel: Minimum thickness: 0.025”

13. D No open holes in firewall.

14. Frame

14. A The frame for any new cars built after 3/1/2000 must be manufactured from SAE 4130. Effective 1/1/2009 all cars must be manufactured from seamless, cold-drawn, SAE 4130, Chrome Moly (chromium molybdenum) tubing, extending forward from the top of the roll cage to approximately the front bumper (down-tube design).

15. Fuel

15. A Honda 120, Super Stock, Honda 160, Mod, B, WF, Animal: Gasoline, automotive type only; no white or aviation, no additives.

15. B AA & Half: Straight methanol or gasoline, no additives.

16. Fuel Lines

16. A All fuel fittings must be automotive type. Fuel linings must be attached with any positive stop clamps.

16. B All fuel lines must be made from flexible hose and should be rated for the appropriate fuel (Gasoline/Methanol). Steel braiding is acceptable provided it is enclosed (under) other plies of material and is an integral part of the hose such as industrial hose, steel braided hose. Steel braided hose or slip on is allowed, this is not a cooling device.

16. C No cool cans or other device for cooling fuel in any class or insulation of fuel lines in any class. No device used to reduce the temperature or remove energy from the fuel system, including dry ice in the fuel tank. No device used to insulate the fuel system, including shields, insulation etc.

17. Fuel Tanks

17. A All fuel tanks must be vented below the belly pan. (Tank lid hole must be plugged)

17. B No pressurized tanks.

17. C All fuel tanks must be securely mounted to the frame as not to move inside the tail section. If hose clamps are used minimum two.

17. D Only Aluminum fuel tanks are permitted. Minimum wall thickness of 0.050”

17. E Fuel tanks cannot be replaced during a race; penalty is DQ from that race.

17. F Only one fuel tank may be used.

17. G Maximum fuel tank size 140 ounces.

18. Fuel Pumps

18. A NOVICE, Super Stock, Honda 120, Honda 160:

No fuel pumps of any type allowed.

18. B Modified, B, AA, WF, Animal, and Half Midgets:

Vacuum type fuel pump, which will automatically deactivate if engine stops, (vacuum operated only), Maximum allowable pressure: 3 PSI

19. Nerf Bars

19. A All cars must be equipped with nerf bars (side bumpers) at the front of the rear tire to prevent tires hooking or locking together.

19. B Nerf bars must extend outward to a minimum of the center of the rear tires, but must not extend beyond the outside edge of the tires. The outside edge will be checked with a straight edge from the rear tire to the front tire on each side of the car with the wheels parallel to the frame of the car.

19. C Nerf bars will be of steel construction. Titanium and/or composite materials shall not be used.

19. D Left and right nerf bars to be bolted with min. 6/32 to max 10/32 bolts. Bolts must be 6/32 to max 10/32 grade 5 or better. Minimum tubing wall thickness of 0.049”

20. Radius Rods

20. A Radius rods, steering rods, and track locating rods will be constructed only of aluminum. Titanium and/or composite materials shall not be used.

20. B A rod end adapter into which the Rod-end bearing is threaded may be constructed from non-ferrous material, however, the maximum length of adapter is 1 1/2”.

20. C Bird cages, torsion bars, and sway bars are excluded from the aluminum construction requirement, however, titanium and/or composite materials shall not be used.

20. D The definition of an axle radiusing device is as follows: an axle locating device that is fixed on the axle-end and with bearing on the chassis attaching end (for example: a wishbone).

20. E An axle radiusing device made of steel shall be no longer than 17” from the center of the axle to the center of the car attaching point, maximum.(Example – Wish Bone).

20. F There is no length limit on an aluminum radiusing device.

21. Roll Cage

21. A All front and rear roll cage uprights (vertical bar) must form a cockpit to completely enclose the drivers shoulders and head when the driver is sitting upright. Effective 4/1/2005 all new manufactured chassis must be a down-tube design extending from the top of the roll cage to approximately the front bumper. No bolt on halo extension bars are allowed above the roll cage.Welded on extensions or “halo” bars that are added above the original roll cage top may not be used as the measurement point for the helmet clearance requirement of 1”. Effective 1/1/2009 all roll cages for all cars must be manufactured from seamless, cold drawn, SAE 4130, (minimum wall thickness 0.058”) Chrome Moly (chromium molybdenum) tubing, extending forward from the top of the roll cage to approximately the front bumper (down-tube design) .

21. B No wings or other aerodynamic features are permitted on the roll cage.

21. C There shall be no less than 1” clearance between the top of the drivers’ helmet and the bottom of the top cage bars, three inches is recommended.

D river must be in car at Safety Inspection and it must be checked off on the safety inspection sheet. Please see the website and/or the Procedure Manual for the Helmet

Clearance Measuring Procedure and the Pit Steward Procedure.

21. D Roll cages that exceed 34” from the top of the bottom frame rail to the top of the roll cage must use a minimum 7/8” O.D. tubing and have a minimum wall thickness of 0.058”. Also roll cages exceeding 34” must have two rear support bars that attach to the roll cage not more than four inches from the top of the roll cage, and extend downward towards the rear of the car, and must be mounted to the rear part of the frame or frame superstructure.

21. D(1) Support bars shall be constructed from a minimum of 5/8” O.D. tubing, and have a minimum wall thickness of 0.049”. Support bars may be bolted or welded to the roll cage and frame or frame superstructure, but holes cannot be drilled in the roll cage for the purpose of bolting the support bars to the roll cage.

21. D(2) Existing roll cages in use as of April 1, 1984 that are over 34” must add the support bars, but are not required to change the diameter of the roll cage. Also, roll cages in use as of April 1, 1984 that are made of 0.058” stainless steel are legal for continued use.

21. E Sidebars are optional, if installed must be a minimum of 5/8” O.D. tubing and have a minimum wall thickness of 0.049” and securely fastened to the cage.

21. G Helmet hooks are not allowed.

22. Safety Belts

22. A All cars must have a web type safety belt with a quick release buckle. The safety belt must be securely fastened to the frame. Pull up lap belts are recommended.

22. B Drivers will be required to use them at all times.

22. C The safety belt should be located so that the pressure is across the drivers’ hips.

22. D Metal to metal fittings at the quick release is preferred.

22. E A dual shoulder harness (four point safety belt) or strap is mandatory, and must have a quick release fastener approved by the Safety Committee.

22. F The shoulder harness/straps shall be worn securely across the right and left shoulders.

22. G No restraining device of any kind is to be used to keep the driver’s head or body outside the roll cage, with the exception of attaching both shoulder straps to the left upright bar of the cage.

22. H Two year replacement.

22. I Shoulder belts must not be retained by shoulder loops or epaulets on the driver’s suit.

22. J SFI Belt 1-3/4 Minimum

22. K The use of cam lock belts will be allowed.

22. L Seat Belts will not be allowed to pass through the firewall.

23. Shoulder Bar

23. A A left side shoulder bar will be mandatory on all cars, and must meet the following specifications:

23. A(1) SAE 4130 Minimum diameter: 5/8” O.D. Minimum wall thickness: 0.049”

23. A(2) Stainless: Minimum diameter: 5/8” O.D.  Minimum wall thickness: 16 gauge – 0.065”

23. B The shoulder bar must be securely fastened to the nerf bar and roll cage upright at firewall. The shoulder bar may be welded, mounted with split clamps or nerf style spuds. If spuds are used, the bar must be retained by # 10-32 steel bolts. No clevis, rod ends, cotter keys, or hose clamps may be used. 8 – 32 to 10 – 32 grade 5 or higher steel bolt. Flat plate bolting of the shoulder bar to the nerf bar is acceptable and securely fastened to the cage.

23. C The shoulder bar must be securely fastened within the following area: nerf end: – between the left most point of the nerf bar and a point four inches inboard of the left most point. Cage end: theshoulder bar must extend at least as high as the top of the tail cone.

24. Steering

24. A No cables are allowed for steering systems.

24. B The steering system must be designed so the drivers’ legs cannot impair right or left steering.

24. C A car sitting on the ground with or without the driver must have steering that does not go past center in either direction, so that it will not lock in one position.

25. Steering Wheel

25. A All steering wheel hubs must be padded.

25. B Steering wheel pad will be a minimum of one-inch thickness, and two-inch minimum outside diameter.

25. C Steering wheel shall not be constructed of titanium and/or composite materials.

25. D No Data acquisitions allowed on steering wheel.

26. Shock Absorbers

26. A Any type shock absorbers are permitted.

27. Switch

27. A A functional on/off ignition kill switch is required.

27. B The kill switch is to be located so that it will be operated from inside the drivers’ compartment.

27. C It is mandatory that the switch be located in the upper left portion of the drivers’ compartment or on the steering wheel.

27. D The driver’s knee should not be able to contact the switch or it’s mounting bracket.

27. E Attention should be paid to installation so that sharp edges and pinch points do not exist.

27. F The switch must be installed so that when the handle is down or to the rear the ignition is off.

27. G No more than one ignition kill switch is allowed. Exception: cars running in the novice class MUST have an additional switch mounted on top and recommended to be mounted on the right side of the roll cage to allow easy access for trainers, corner workers, or handlers. Must be operational to stop the engine. The extra switch must be removed upon graduation from Novice class.

28. Weights

28. A No loose weights.

28. B No weights are to be added or fastened to the inside or outside of any nerf bars, front or rear bumpers or shoulder bars. No weights shall be fastened to the roll cage.

28. C Weights are to be bolted or welded within the cockpit area between the main frame rails. Weight also may be bolted to the belly pan within the cockpit area, if securely fastened and the belly pan is securely fastened to the frame. No weights attached to any sheet metal except belly pan. Fasteners through weight and belly pan must not be pop rivets. Main frame rails are considered to be straight and parallel from the front to rear of the car.

28. D All lead weights must be covered.

29. Windshield

29. A No windshields on cars.

29. B No mirrors on cars.

30. Measuring, Sensing, and Sending Devices

30. A All data acquisition and measuring devices shall be mounted securely within the roll cage or down tubes and the read out display shall not be operated nor be in the sight of the driver.

30. B In car video cameras are permitted if mounted per the provisions in 30.A

31. No composite wheels.

32. All metal specifications listed in the manual are subject to industry standards and tolerance


There will be no degrading of any drivers safety equipment requirements, this includes but is not limited to Helmets, gloves, suits, etc.

1. Arm Restraints

1. A Arm restraints are mandatory for all drivers (when driving a quarter midget race car), and will be used in conjunction with the seat belt quick release for minimal egress in event of accident.

1. B Arm restraints are fastened securely to the driver’s forearms, (between the wrist and the elbow), never at or above the elbow.

1. C The arm restraint should be adjusted so that it is short enough to keep the driver from reaching just two or three inches above the steering wheel.

2. Face Shield

2. A Clear or amber face shields must be worn after dark, or whenever track lights are turned on.

2. B Tear offs are optional at dirt tracks.

3. Gloves

3. A Two layer Nomex or equivalent gloves are mandatory.

3. B Gloves must completely cover the hands and fingers.

3. C Driver’s gloves require a SFI 3.3/5 rating or greater.

4. Helmet

4. A Drivers will wear a well fitted, full face, professional type crash helmet of the type which is one-piece from the forehead to the base of the skull and similarly covers the ears and chin area.

4. B Helmets  are required to use a SA2000 or newer Helmet or SFI 24.1 or CMR2007 youth spec helmet. SA2000 helmets will be allowed until January 1, 2014. If you use the CMR2007 helmet you will be required to wear a SFI 3.3 rated head sock. Failure to comply will be a DQ at the scales.

4. C Helmet shall be in good condition (no exterior cracks, evidence of impact or deteriorating interior lining/shock absorbing material).

4. D All hair will be under the helmet or inside jacket/driver’s suit when driving a quarter midget.

4. E Helmet shall be inspected by track safety at the start of the racing season (as a minimum).

4. F Drivers of “AA” and Half Midgets using alcohol are required to wear SFI 3.3 rated Head Sock under their helmet.

4. G Visors must be down when practicing, hot lapping, and under green flag conditions.

4. H Helmet hooks are not allowed.

4. I No external decorative covering allowed on helmets or face shields.(Example: Skull Skins or similar products). This does not preclude paint or vinyl graphics as long as they do not cover the face shield.

5. Jackets & Suits

5. A All upper-body clothing must be securely fastened.

5. B Jacket or Suit must provide full coverage from neck to waist and extend completely to the gloves.

5. C All Jackets or Suits must have a minimum SFI rating of 3.2A/1 or higher.

6. Neck Collar

6. A A neck collar is mandatory.

6. B Neck Collar made of Nomex or equivalent is mandatory with a recommended rating of SFI 3.3, effective 1/1/09 this will be mandatory.

7. Pant Legs

7. A Pants must be waist to ankle length, (no shorts or Capri’s) and a minimum of a denim material (no sweat pants, pajama pants or nylon material), and not to allow exposed skin.

7. B Safety Director recommends that pants carry a SFI 3.2A-5 or higher rating.

8. Shoes

8. A Shoes are required that completely cover the feet for all drivers, handlers, alternate handlers, flagman and others in hot chute, work area, staging area, racing surface, scaling and fueling area.

8. B Flat bottom shoes only, no use of “heelys” or shoes with wheels on the bottom allowed while in the car).

9. Head And Neck Restraint

9. A All SFI 38.1 compliant head and neck restraint systems permitted. Note: Manufacturer use requirements must be followed, to include mounting, neck collar, etc.


10. A A full brake pedal or positive heel stop is mandatory to prevent the foot from pushing through the pedal.


1. Modifications of any car construction specification for a Quarter Midgets or Half Midget necessary for a physically disabled child must be approved by Midwest Motorsports on a case by case basis.

2. No decorative or distractive lights or any non-essential racing items (i.e. flags, stuffed animals, license plates, etc.) allowed on any car.

3. High Pressure Compressed Gas Cylinders must remain in trailers or in tow Vehicles.

4. There will be no jugs or cans of fuel in the Hot Chute after refueling.

5. Recommended: No lifting cars up on their nose in the hot chute (safety reasons).


6. A Hoosier Tire must be used on all 4 corners. Any compound Hoosier Tire. Tire Treatment – it is prohibited to apply tire treatments or chemicals on any tires, except for cleaning with water. Anyone found using illegal tire treatments will be penalized as follows (Note) Family is driver/handler same application. If not family, it will be  driver of the car, handler and family.

6. B Approved tester will be Portable Tire Prep Monitor, JTR Eagle.

6. C Tire tester may be used. Anything over 80 ppm (maximum reading) will result in a DQ from race. Dirt tracks reading will be determined at the event by the Tech Director.

6. D No plastic wrap, factory wrap or any other material left solely on mounted tires outside your trailer at all tracks or events.

6. F Tire Warmers and Heat Guns – Tire warmers, hot boxes, tire covers or any device to warm tires is not allowed on the grounds of the race facility. First Offense is disqualification from the event. Heat guns for cleaning tires are allowed except in the staging and hot chute area. Please see procedural manual or document page on website For  Tire Protest.


WEIGHT (min) WEIGHT(min) WEIGHT(min)

Novice Junior 5-8 N/A 250 lbs. 160 lbs. Novice Senior 9-17 N/A 260 lbs. 160 lbs.

Animal Junior 5-8 N/A 250 lbs. 160 lbs. Animal Senior 9-17 N/A 275 lbs 160 lbs

Honda Junior 5-8 N/A 250 lbs. 160 lbs.

Honda Senior 9-17 N/A 275 lbs. 160 lbs. Honda Heavy 8-17 100 lbs. 325 lbs.160 lbs.

(Honda Heavy may use GX160 Carburetor to compete in Honda events)

Super Stock Junior 5-8 N/A 250 lbs. 160 lbs. Super Stock Senior 9-17 N/A 275 lbs. 160 lbs.

Honda 160 Light 8-17 N/A 270 lbs. 160 lbs. Honda 160 Heavy 8-17 100 lbs. 325 lbs. 160 lbs.

(Honda 160 Heavy may use GX200 Carburetor to compete in Honda 160 events)

World Formula Light 9-17 N/A 295 lbs. 160 lbs.  World Formula Heavy 9-17 100 340 lbs 160 lbs.



1. Restrictor plates shall be utilized in the following divisions:

1. (A) Junior Novice

1. (C) Senior Novice

1. (D) Junior Animal – See chart in Sec. 4 for plate

1. (E) Senior Animal – See chart in Sec. 4 for plate

1. (F) Junior Honda

1. (G) Junior Stock – Slide style Pumper Carb

1. (H) Junior and Senior Stock – Tillotson carb.

2. Restrictor plates are mandatory.

3. All Restrictor plates must have the QMA logo on them, except Gold Deco Novice Plates. Blue restrictor plates must be dated 06/09 or newer.

3. (A) Only QMA approved restrictor plates may be used.

4. Restrictor plates may be removed during non-racing events for practice only.

5. Identification tab must be visible at all times.

6. Alterations of any kind will be disqualified.

7. Failure to use proper restrictor plate in any designated classes or any alteration of restrictor plate is cause for immediate DQ and applicable suspension.

Sec.. 2 DECO

1. Only one Gold QMA approved 0.375” (3/8”) restrictor plate for DECO engines racing in Novice class.

2. Restrictor plate must be installed between the carburetor and manifold.

2. (A) One gasket (max. 1/16” thickness) must be used on each side of the restrictor plate.

2. (B) Gaskets must not have an inside diameter of less than 0.750” and not be tapered to alter airflow in any way.

2.(C) Airflow must pass through 0.375” restrictor hole only.

2. (D) If the restrictor plate is removed for racing Super-Stock class, two gaskets may be used on a temporary basis.

3. Jr. Stock must run a restrictor plate on the exhaust side. If restrictor plate is missing or if tampered with, car will be disqualified.

Sec.. 3 ANIMAL

1. The Novice Animal and Animal divisions will run the following slides/plates at all times.

1. A Jr. Novice Animal= 0.240 (Red) Slide Opening.

1. B Sr. Novice Animal and Jr. Animal plate will be blue.

1. C Sr. Animal plate will be gold.

2. Airflow must pass through slide/restrictor plate hole only.


Sec.. 4 HONDA

1 The Novice Honda and Junior Honda division will run the following restrictors at all times.

1. (A) Junior Novice = 0.3125” (5/16”), Senior Novice = 0.4375” (7/16)

1. (B) Junior Honda = 0.4375” (7/16”)

2. The restrictor will be installed between carburetor and plastic insulator, with a stock gasket on each side of restrictor.

3 Airflow must pass through restrictor hole only.

3. (A) If the restrictor plate is removed for racing Sr. Honda 120 division, two stock gaskets may be used on a temporary basis.

Monsters of the Midwest  Restrictor Dimensions

Division ……………………………………………….. Color …………. Restrictor/Slide

Jr. Novice (Animal) ………………………………. Red…………………….0.240”S

Sr. Novice (Animal) ……………………………….. Blue …………………………….. ..tbd

Jr. Animal ……………………………………………… Blue …………………………….. ..tbd

Sr. Animal……………………………………………..Gold……………………..………tbd

Jr. Novice (Honda) ……………………………….. Red …………… 0.3125” (5/16”)R

Sr. Novice (Honda)………………………………… Blue ………….. 0.4375” (7/16”)R

Jr. Honda ………………………………………………. Blue ………….. 0.4375” (7/16”)R

Jr./Sr. Stock w/Tillotson – Model HL357 Black …………………………. .660R

JR./SR. Novice Deco HP PUMPER #680-7500 PURPLE …….. 0.375 (3/8)R

JR./SR. NOVICE DECO WALBRO …………. GOLD …………… 0.375” (3/8”)R

JR. DECO EXHAUST NO QMA LOGO ……. SILVER …………. 0.500” (1/2”)R


Promoter reserves the right to change rules or race procedures at any time.  Any changes that are made will be made aware to the racers via the web page, forums, social media,  and at the current or next scheduled race.