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MODIFIED FARM STOCK (Non Turbo) 6,500# Class |
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All weights must be securely fastened to tractor. No weights permitted on seat or deck. Any weights or external parts |
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lost while hooked to sled will be cause for disqualification of the pull. |
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All tractors must be equipped with both rear brakes working. |
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Modified stock class is open to naturally aspirated engine only. Tractors must have rubber tires, no dual wheels, |
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studs or chains with all power being transmitted through rear wheels. Cut tires are permitted. All factory wheels |
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must be in place. |
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No R.P.M. limit. |
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Tractor Motor, transmission and rear end housing must conform to each other and must be in the stock location. |
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Block and cylinder head must be O.E.M. for make and model of tractor. |
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Clutch housing, transmission case, rear end housing and axle housing must be O.E.M. for make and model of tractor. |
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Minimum drawbar length is 18" from the center of rear axle to point of hook up. Drawbar must be stationary in all |
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directions. Maximum height is 20" from top of hitching device parallel to the ground. Any vertical clevis will be |
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measured to center of loop. |
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Drawbar must be equipped with steel hitching device with thickness no less than 1" square or 1-1/8" round stock |
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and no more than 1-1/2" square or round stock. A 3" wide by 3-1/2" long hole is required or 3" round. A cross |
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sectional thickness of 1 square inch minimum must be maintained at any given point of hitch loop. |
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Tire size limit will be 24.5" maximum. |
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Diesel can use any fuel system. Gasoline powered tractor must use only one up draft carburetor. Tractors must use |
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fuel that engine was designed for. No Alcohol fuel allowed. Electric fuel pumps are permitted. Engine must use |
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O.E.M. manifolds. No fuel injection of any type, except for diesel engines. Carburetor flange will be no more than |
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1" from stock length. No water injection. No overhead cams. All propane tractors should have only one |
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regulator. |
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If any tractor has any changes from factory, it must have all safety equipment, (ie blankets, side shields from top of |
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block extend 2" below center throw of crankshaft, must be 1/8" steel or aluminum). Must have fenders, kill switch |
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and return spring on throttle plate. |
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Maximum length from center of rear wheel to forward most portion or tractor is 13'. Maximum wheel base is not |
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to exceed 114". |
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Officials may order driver/owner to remove shields for inspection. The driver/owner will be present at inspection. |
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A closed inspection will be honored. |
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Power shift and clutch update are okay, if no modifications are made to chassis. Any tractor in question of being |
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legal will be ruled on by the rules committee and board of directors. |
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Full face helmets must be worn. Fire suits are suggested. Leather shoes must be worn. |
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Cubic Inch Limit for all makes and models is 680 cubic inches. |
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A protest rule will be in place for these classes. A fee (tear down money) of $500.00 cash must be posted by the |
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protestor(s) at the event. The burden of proof of the legality of the tractor in question is placed on the vehicle's |
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owner. |
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Wheelie bar specifications: |
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a. Maximum height from the ground 10". |
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b. Maximum length 32" from center of axle to back of wheelie bar. |
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c. 5" square plate on bottom of wheelie bar. |
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d. Must not be attached to the hitching devices. |
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e. A random check can be made where the tractor is jacked up using the wheelie bar. The wheelie bar must |
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hold the weight of the class the tractor is pulling. |
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SPECIAL EXCEPTION: Allis Charmers D19 tractors may move the intake flange 2" toward the center. |