1.) Tractor must retain stock appearance and sheet metal
stock location. Allow for updates.
2.) Deflection shield must be on both sides of the motor,
and cover the entire motor, either
aluminum or steel, not less than 0.060 thick. Fire shield
between torque tube and driver.
3.) Clutches must be covered with six buckle SFI safety blanket.
4.) Fenders or tire shields are required.
5.) Must have cross in outlet on turbo: two 3/8 bolts
or rods no more than one inch apart.
Front weights must not extend more than 13 feet from the
center of rear axle and 114
7.) Tractors must have individual working rear brakes.
8.) Draw bar must be stationary and no higher than 20 inches
and 18 inches from center of axle.
**All tractors must conform to one of these sets of rules
9.) Cubic Inch: Ohio River Valley Pullers Association: 470
c.i.d. 3 by 4 turbochargers
Indiana Super Farm Pullers Association: 510 c.i.d. 3
by 3.5 turbochargers
Middle Tennessee Pullers Association: 540 c.i.d. 3 by
All other Super Farm Tractors: 466 c.i.d. 3 by 3
10.) Aluminum heads are not allowed; only 2 valves per cylinder.
Stock fuel for make and model of tractor (no compressed air,
nitrous oxide or fuel
conversions, no propane, or nitro-methane allowed) with exception
of starting aid.
Maximum tire size: 20.8 x 38 cut or uncut: Ohio River Valley
Indiana Super Farm Pullers
Middle Tennessee Pullers Association
24.5 x 32: Nebraska Tractor Pullers Association
13.) Fuel pump - any pump, maximum P-pump
14.) Water injection allowed.
15.) OEM intakes and exhaust manifolds only; no homemade
16.) All tractors must have wheelie bars, air shut off, and
spring loaded throttle stop.
17.) All tractors must have a Rollcage or ROPS, with a five
point harness or seat belt.
18.) ORVTPA tractors: Single turbo of a size not to exceed
a 3-inch diameter, measured at front
face of wheel, with one single air inlet with on additional
openings in compressor housing
outside 3 inlet. Compressor wheel must enter into the
compressor housing. MAF
22). All tractors must have steel fly-wheel and steel pressure
plate, with certification papers.
23). No component tractors allowed.
24). No inter-coolers or after-coolers allowed.