Mini Sprints

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2017 Mini-Sprint Rules

All drivers must be at least 14 years of age during the racing season of competition with previous racing experience. Proof of age is required. Drivers under 18 years of age must have notarized parental consent form signed by their parent or legal guardian. Said document must be turned over to the East Bay Raceway Park officials prior to any participation. Any Driver 16 years of age or older must have a current Driver’s License to be able to compete in competition. Each car owner and/or driver is considered an independent contractor and as such is responsible for all charges, premiums and taxes, if any, payable on any fund received from East Bay Raceway Park. This division being developed for the fun of racing in a low cost fashion. This requires limits in various areas to be enforced to keep competition equal and fair to all those involved. With the help and consideration of the participants, this can be accomplished.

The Mini/Micro Sprint car will consist of four wheels, open cockpit, open wheel, single seat, and full suspension with Midget or Sprint car style hood and tail. The engine shall be located in the front of the vehicle.

The chassis must be at least a six-point roll cage and must be a minimum diameter of one (1) inch, with a minimum tubing thickness of .o95″ for mild steel (ERW or DOM). The tubing minimum thickness for chrome-moly, for one (1) inch shall be .083″. For cars made from larger tubing, the tubing thickness may drop one (1) gauge for each diameter greater than one (1) inch. Vehicles must have elbow bars between front and rear uprights. Bumpers and nerf bars may have a minimum diameter of 3/4″ inch and maximum diameter of 1″ and must not extend beyond the outside edge of the vehicles tires. The use of conduit is prohibited. The space between the top tubes of the roll cage and the seated drive’s helmet must beat least 3″. The rear push bar the extends horizontally down the back must be bent to reconnect with the car, or sawed off and sanded until smooth.

In-Cockpit Adjustments
The drivers are allowed 4 in-cockpit adjustments.

Front suspension may be coil-over or torsion bars; rear suspension may also be coil-over or torsion bars.

Diameter maximum -10″ rims only permitted. A bead lock right rear is mandatory equipment. A maximum of 14″ wheel width (15 inches as measured from outside to outside of wheel) is allowed.

Right rear tire must be a 50-durometer reading or harder in a 10″ diameter tire . Any brand of tires can be used.

Drives must be chain driven only.

Wheelbase must be a minimum of 58″ with a maximum of 72″. Maximum width of rear axle is 54″.

Minimum weight with the driver shall be:
600cc-750 lbs.
636cc-775 lbs.
750cc-800 lbs.
Weights may be added to make minimum weight limit and must be solid material. The weights MUST be securely fastened. A 2-point securing system is mandatory to prevent weight loss.
Car number must be permanently engraved on all weights and bright color painted.

Any four-stroke motorcycle engine sold in the USA or Canada meeting EPA certification and OEM stock, up to and including 750cc will be allowed. The engine must be in production for one full year or in the second year of production UP TO 2013. Engine must be stock bore and stroke for that specific model engine. Example: 600cc Yamaha, Suzuki, Kawasaki, Honda, 636cc Kawasaki RR, 750cc Suzuki. All Factory stamping of motors must be present and not removed or altered to prevent the use of illegally obtained motors. If altered must have receipt where motor was purchased by next race. Muffler is mandatory and must be securely fastened. Exhaust system may not enter the driver’s compartment. Side cover and clutch cover may be after market in the interest of engine protection. All engine firewall must be a min. 1/16″ thickness aluminum or steel. Center mounted engine firewall must be located from top of back engine case to bottom frame rail. Side-mounted engine firewall must be located from the top of the engine-case to bottom frame rail, and 10″ in front of the right side of engine.

Engine Modification
The only engine modification permitted is the modification of the oil pan, and degree of cams. Slotted cam gears, after market clutch parts, fuel injectors, fuel rail and any ignitions modifications are allowed. NO OTHER MODIFICATION IS PERMITTED. THERE WILL BE NO PORTING;POLISHING OF THE INTAKE OR EXHAUST RUNNERS, NO REMOVING OF ANY METAL FROM THE ENGINE. No bore or stroke modifications allowed. Engine must be stock bore and stroke for that specific model engine. THERE WILL BE NO POLISHING OF THE COMBUSTION CHAMBER. NO EXTERNAL MAGS ALLOWED No removing or metal from crankshaft and/or connecting rods. No cams other than OEM stock specifications allowed for the year engine. Part #’s must match. No regrinding of cams.

Maximum of 41mm re-jetting is permitted. After market flat-side carburetors are allowed. No turbo chargers or superchargers, traction control allowed. Electronic fuel injection is allowed. After market fuel injectors and furl rails are allowed with alcohol. Must have high-pressure fuel injection gas lines. No after market throttle bodies or mechanical fuel injection are allowed (FORBIDDEN). Throttle bodies must be OEM.

Fuel and Oil
Any racing gas/pump gas, alcohol/methanol are allowed. Car must have approved racing fuel cell, with or without bladder.

Must be stock OEM. All gears must be all in place and functioning, subject to inspection.

Starter must operate. Car must be capable of leaving the pits.

No radios are allowed except for race receivers.

Car Numbers
Numbers must be at least10″. 12″ to 15″ is recommended for easier scoring. Car numbers must be on both sides of tail tank and wing.

Yellow Flag
2 yellow flag rule and DNF.
Any car that needs work under yellow must go to the pits for repairs. After repairs are completed and if track officials allow it, the car may return to the track and start in the rear of the field. Cars involved in an accident or STOP DURING yellow flag must start in the rear of the field, except to notify officials of a safety situation.

Red Flag
Stop at once. DO NOT GET OUT OF YOUR CAR UNLESS YOU ARE IMMEDIATE DANGER. Wait for track personal to assist you. NO crew members are allowed on track. Exception is that a crew member may deliver tear-offs to the driver is track officials allow. Crew members MUST NOT touch the car while still on the track. Any car that needs work under red must go to the pits for repairs. After repairs are completed and if track officials allow it, the car may return to the track and start in the rear of the field. ANY VIOLATIONS OF RED OR YELLOW FLAG RULES WILL RESULT IN A COMPLETE DISQUALIFICATION.

For the purpose of safety of the drivers, safety rules must be enforced.
1. All seat belts in the cars must be changed at least every three years. Buckles must be checked during safety inspection of your vehicle at home prior to each race for ease of operation and must be functional. Damaged or non-functioning belts and buckles must be replaced immediately. Date of installation of belts must be noted on each belt in permanent marker and must be visible for inspection.
2. Rear Belt support bar must be at shoulder height.
3. Drivers must wear industry standard racing suits that are designed to protect drivers from fire and hazard.
4. Drivers must wear arm restraints and fire retardant racing gloves and approved racing shoes.
5. Drivers must wear a Head & Neck Restraints this is mandatory.
6. Right side “Sprint Car” window net or right side head support on seat is Mandatory.
7. All cars must drive slowly in the pits.
8. Helmets must be minimum of SNELL 90 or above and full face with visor. Driver-FULL COVERAGE, fire retardant suit required. 3” 5-point belt system, arm restraints, cervical collar and NOMEX gloves required. Chain guard mandatory, Engine shield mandatory.
9. All Drivers will need to have Race Receivers by the time they race their first (1st.) scheduled race. Every Driver is responsible for his or her receiver to be in working condition,if you do not have a raceciever you can rent or buy one from the fmsa this is manadatory.
10. Head and Neck restraint or fuel bladder is mandatory this year, 2015
12. A rock guard is highly recommended.

Fire retardant hood, socks and underwear are recommended.


1. Any Driver, Owner, Pit Crew who causes a problem in the pits, uses abusive languages to any Officer or Track Official will be put on notice and reviewed by the board for a possible suspension or fine.
2. Any driver, crew member or immediate family may NOT use NO ALCOHOL OR DRUGS during racing. Alcohol may be consumed only after ALL RACING at the track has been completed. Infractions will result in loss of points and money.
3. Any car causing 2 cautions must be black-flagged and must exit the track. except if overruled by track
4. Start of race is according to Feature Line-Up giving before the Feature Event. the first start will be double-file nose to tail till the green flag waves.
5. Restarts will be single file. No passing the Car in front until the leader fires. No passing until driver has passed double cones in turn 4, no matter where you re-start in field. This means your front bumper must be behind the rear bumper of the car in front of you If you pass the car in front of you on the restart before the leader fires you will be penalized, you will be the last car on the lead lap at the end of the race. Anyone passing before the leader fires will be penalized to the rear of the field unless it is a result of a car failure in front of you. If the race stays green with no caution you will be the last car on the lead lap at the end of the race Start of race is according to Line-Up.

Drawing of a pill / Bingo Ball will be done for all heat race-starting positions during sign in.
All races: Heats by draw; Feature Event will be determined by finishes in the heat. Last heat winner will draw a pill for inversion of feature line-up.

Points will be awarded by East Bay Raceway Park scorer:
All point’s races will count towards the Driver.


Any driver with a rough driving behavior causing an accident on, or off the track and not just racing incident which will be determined by East Bay Raceway Park Officials and or drivers. First time incident driver will be warned and made aware of his or her driving action. The 2nd. Incident will result in loss of points and monies for that event. The 3rd. Incident will results in 1 race suspension. The 4th. incident in a year will lead to a season long suspension from participation. Subject to appeal to East Bay Raceway Park track management.

Each driver is responsible for obtaining current, updated, copies of the rules.