All tractors must have pressed steel or aluminum wheels, steel flywheel. Or the clutch, flywheel, pressure plate, and clutch disc must be covered with a SEMA approved safety blanket or shield and secured as specified by SEMA. All engines using a clutch must be equipped with a current SEMA (or NHRA) approved clutch housing, flywheel, pressure plate, and clutch disc.All automotive transmissions must be covered with a current SEMA approved safety blanket or shield and be secured as specified by SEMA.
Modified mini tractor pulls manual#
Front skid/ axle support should be radial as to prevent digging into the track. Front axle supports should connect to each frame rail inline and extend towards the front of the tractor.
Tractor must have wide front end 48" center to center tires minimum.Drawbars must be constructed so that in the event of drawbar breakage, the draw bar supports do not pull from a top link or brace above the centerline of the rear axle of the vehicle. Tractor will have a ring hitch with a three (3) inch eye. Hitch point must not be over 20 inches high or closer than 18 inches from a line extending center to center of the rear wheels.bungee cords) allowed holding weights in place. Weights must be securely fastened to the tractor no rubber straps (i.e.The rear weights shall not extend past the rear tires. Tractors may have frames extended or replaced, but no part of the tractor (including weight brackets) shall extend further than 14 feet (168 inches) from the center of the rear wheels.Hood may be modified and/or extended to accommodate the automotive engine and/or transmission. Tractors must use the rear end and sheet metal (transmission optional) from a farm tractor of any year.All safety rules will be in force at all times on and off the track!.Oil system must be a wet sump ( No Dry Sump Systems) Valve angle will be limited as follows : Chevy 18 Deg./ Ford 18 deg. / Chrysler 20 deg. No Exceptions! Every tractor must be equipped with a memory tachometer that the track official can check at the end of the track. All tractors MUST be equipped with a MSD box that will accept a RPM chip. Small blocks must run at 7400 RPMs and below. No Tunnel Ram style intakes with adaptor plates for a single carb
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