I-76 SPEEDWAY

Fort Morgan, Colorado

2005 Mini Stock & Thunder Truck Rules

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. The Mini-Stock Rules shall govern the condition of all Mini-Stock events. By participating in these events, all participants are deemed to have complied with these rules. They are intended as a guide for the conduct of the sport and are in no way a guarantee.

1. COMPETING MODELS- ELIGIBILITY

(A) Any American/Foreign made automobile.

(B) No convertibles, station wagons, jeeps.

(D) Maximum wheel base 103” Wheel base must be stock for make and model used.

2. ENGINES

(A) Three (3) or four (4) cylinder engines only.

(B) Complete stock. No performance parts of any kind allowed.

(D) Turbo engines okay.

(E) Headers okay.

(F) No dual overhead cam engines.

(G) Motor must pull 16” of vacuum at 800 RPM.

3. CARBURETOR

(A) Limited to OEM type or one 2-barrell carburetor not to exceed 500 cm 2-barrell. No racing carburetors allowed.

(B) Fuel injection permitted if car came originally equipped as fuel injected. If equipped with electric fuel pump, make sure pump is wired through oil pressure switch. If vehicle is not equipped with a switch, it must be added.

4. SUSPENSION

(A) Stock OEM parts only. Except the removal of strut towers to obtain additional wheel camber is allowed. The top of the struts can be mounted to the front loop. Shock towers should be reinforced.

5. STEERING

(A) Stock steering for the make and model. Quick release style okay. Steering box must remain in stock location.

6. REAR END, TRANSMISSIONS, CLUTCHES, FLYWHEELS

(A) Any stock transmission for make and model.

(B) Stock rear end for that make and model. Locked rear ends optional.

(D) Driveshafts must have a 360 degree loop within 15” of front U-joint.

7. WHEELS, TIRES, BRAKES

(A) Any steel wheels.

(B) Right front oversize lug nuts required. Recommended for all four wheels.

(D) Any DOT street legal tire permitted. 9” sidewall to sidewall max.

(E) Stock brake system for make and model. All brakes must function.

8. ROLL BARS

(A) Modified 4-point cage will be required. 1-1/2 inch diameter. 090 wall with gussets are needed welded to four 4 x 4 plated and bolted to floor. Three (3) door bars inside drivers door.

9. MINIMUM WEIGHTS

(A) No minimum weights required, Added weight of any kind is not permitted.

10. SEATS AND SAFETY EQUIPMENT

(A) Bucket or aircraft type only. NO passenger car type seats allowed. All seat belts must be a 5-point hookup. Must be made of nylon webbing and should be replaced each year. Buckles must be of quick release. Shoulder harness must be of Air Force type, nylon only. Seat belts must be bolted to frame or cross member in such a manner as to allow swiveling. Where belt fastens to frame or cross section, it must be anchored below shoulder height. Recommended 3” belts. Passenger belts will NOT BE ALLOWED.

11. NO MIRRORS

12. WINDOW NET - Mandatory.

13. MUFFLERS are mandatory.

14. FUEL TANKS must be inside of trunk with screw or lock type caps. Must be set in steel box with safety straps and secured tightly. Fuel cell recommended. Fuel tanks must be separated from the driver by a metal wall. If fuel line runs inside of car, line must be sealed in conduit from front to rear firewall. Gasoline only.

15. FIRE EXTINGUISHER must be mounted inside of car.

16. BODIES cannot substitute fiberglass for any steel part. Hoods may be cut for air cleaner clearance.

17. REMEMBER, this is not a race car, this is a car you race!

TEAR-DOWN RULES: $50.00 TO PULL VALVE COVER

$150 TO PULL HEAD

IF FOUND ILLEGAL, THE PERSON THAT PROTESTS GETS THEIR MONEY BACK MINUS TEAR-DOWN FEE, WHICH IS $25.00 VALVE COVER ONLY; $50.00 HEAD AND VALVE COVER. PROTEST MUST BE MADE WITHIN 10 MINUTES OF MAIN EVENT FINISH.