Garden Tractor Modified Driver Eligibility: 1. General Rules apply. 2. Drivers must be at least 16 years old with parental consent. 3. Helmet and fire suits are MANDATORY. Tractor: 4. Tractors may be homemade, but are limited to 8 feet in length from the center of the rear axle to the furthest forward point including wheels. Maximum width of 6’6” from outside to outside. 5. Engines will be limited as follows: a. Automotive engines 2500cc, 4 cylinder limit. b. Non-automotive type engines (snowmobile, motorcycle, boat engines, etc.) can run multiple engine combination with no limit on number of cylinders, but a total combined 1500cc limit. 6. Ignition System- any type. 7. Fuel System- Carburetors or fuel injection (piston type engines). Carburetors only (rotary type engines). No oxidizers (i.e. nitrous oxide) or pressurized tanks, 8. Fuel Type- Gasoline, diesel, fuel, alcohol, octane boosters, and lead additives allowed. No other fuels. 9. Maximum Tire Size: 31x15.5x15 10. Tire tread pattern may be bar or turf type. No paddle tires. Alterations allowed. 11. Shielding requirements: a. 1/16” metal shields must be provided over belts, chains, fans, etc. b. 1/8” steel shields or an approved safety blanket must be provided 360 degrees around clutches (the shields must cover the area from the front of the bell housing a minimum of 4” to the rear) and automatic transmissions. c. 1/8” steel shields or approved safety blanket must be provided 360 degrees around automatic transmissions. d. 1/8” metal shields must be provided on both sides of engines. Each shield must be as long as the block and must extend from the top of the oil pan to the underside of the cylinders. 12. Tractors must have fenders to protect the driver from the rear tires. 13. Tractors with automatic transmissions shall be equipped with positive lockout to prevent accidental engagement of reverse gear. Safety start switch so tractor cannot be started in gear. 14. The hook hole in the drawbar must be a minimum of 2” diameter. A minimum of 3/8” material around diameter of hole. Hitches rigid in all directions with 3” on either side of the hitch as dead man zone from hitch to top of seat. No weights in the dead man zone, only the kill switch centered approximately 10-12 inches above the hitch in this area only. 15. Roll cages optional. 16. Wheelie bars must be rigid in all directions and able to support the tractor and driver in the heaviest class. Each skid shoe must be minimum of 2”x3” or the use 5” round wheels is allowed. Tractor must have 2 skid shoes or 2 wheels. The wheelie bars must be a minimum of 5” from rear most part of tire and maximum of 10” The wheelie bars must also be a maximum of 5” inches from ground to bottom of skid shoes or wheels. A bumper bar 6” in length vertical in rear position is required. (Refer to diagram at back of book.) Weights on back of tractor must be contained up to 1” before the end of the wheelie bars. 17. ALL TRACTORS MUST HAVE a minimum of a 2 lb. fire extinguisher fully charged on board in reach of operator. A functional gauge on all fire extinguishers is required.