Diesel Tractor Classes Rules & Regulations

9,300 LB. SUPER FARM TRACTORS
(MUST BE IN COMPLIANCE WITH ALL NTPA RULES)
10,500 & 11,500 LB. HOT FARM TRACTORS
1. MUST BE STOCK APPEARING.
2. STAMP STEEL WHEELS OR ALUMINUM REQUIRED -- MAX. RIM SIZE IS 38".
3. MAY USE CUT TIRES MAXIMUM TIRE SIZE 24.5X32.
4. ALL WEIGHT BRACKETS MUST BE FIXED IN ALL DIRECTIONS.
5. HITCH HEIGHT TO BE 20” HIGH, MIN. OF 18” FROM CENTER OF REAR AXLE. HITCH
MUST BE RIGID IN ALL DIRECTIONS
6. WELDED ON HUBS ALLOWED. FACTORY CAST HUBS PROHIBITTED
7. NO FACTORY PARTS CAN BE MOVED OR REPLACED BY ALUMINUM, FIBERGLASS
OR PLASTIC. CAN USE THIN SHEET METAL.
8. SFI APPROVED ROLL CAGE IS STRONGLY RECOMMENDED. CAGE MUST HAVE SFI
STAMP AND DOCUMENTATION, YOU MUST USE A FIVE POINT HARNESS & SFI
APPROVED RACING BUCKET STYLE SEAT IN CONJUNCTION WITH THE ROLL CAGE.
OEM ROPS IS ACCEPTABLE WITH UN-MODIFIED MOUNTS AND LIFT HOUSING STILL IN
PLACE. DOT APPROVED HELMET IS REQUIRED WITH BOTH CAGE & ROPS AS WELL
9. MAX TURBO SIZE=3” INDUCER, 3” EXHAUST, TO BE MEASURED INSIDE HOUSING
MUST HAVE TWO 3/8" GRADE FIVE BOLTS WITHIN 1" OF EACH OTHER, NO
FURTHER THAN 6” FROM FACE OF COMPRESSOR WHEEL
10. MAX FUEL INJECTION PUMP=BOSCH P-PUMP.
11. MUST USE OEM CAST CYLINDER HEADS FOR SPECIFIC ENGINE MODEL.
12. KILL SWITCH=AIR SHUT OFF - MUST BE ABLE TO BE OPERATED MANUALLY (BY THE
OPERATOR FROM THE SEAT OF THE TRACTOR) AND BY THE SLED OPERATOR.
13. EXHAUST PIPE MUST BE SECURED.
14. REMOVAL SIDE SHIELDS PERMITTED.
15. TURBO MUST BE COVERED WITH SHEET METAL, SAME THICKNESS AS HOOD
16. NO HOLE DRILLING IN TURBO HOUSING.
17. MUST USE STOCK MANIFOLDS.
18. WEIGHT RACKS NOT TO EXTEND MORE THAN 18" PAST FRONT FRAME OF
TRACTOR. REAR WEIGHT RACK NOT TO EXTEND PAST BACK OF REAR TIRES. ALL
WEIGHT RACKS TO BE STATIONARY.
19. MUST HAVE ORIGINAL MOTOR OR FACTORY REPLACEMENT.
20. MAXIMUM CUBIC INCH -- 600.
21. ALL TRACTORS TO HAVE WIDE FRONTS, NO TRICYCLE.
22. NO FACTORY CAST FLYWHEELS!!! SFI BELLHOUSING OR CLUTCH BLANKET IS
REQUIRED.
23. NO ACCELERANTS!!! WATER INJECTION ALLOWED. FACTORY FUEL ONLY.

7,500 & 8,500 LB. TURBO FARM TRACTORS

1. ALL CCP SAFETY RULES APPLY TO ALL TRACTORS, CLASSES, AND PERSONS.
2. TRACTOR MUST HAVE THE ORIGINAL FRAME AND SAME ORIGINAL MANUFACTURER'S BRAND OF ENGINE OFFERED IN ORIGINAL TRACTOR, FITTING ONTO THE ORIGINAL BELL HOUSING AND BOLTED DIRECTLY TO THE ORIGINAL FRAME (NO ALTERATIONS) AND WITH NO MORE OR LESS CYLINDERS THAN THE ORIGINAL MOTOR. ACCEPTABLE FUELS ARE GASOLINE, LP, OR DIESEL, NO ACCELERANTS!!!
3. MUST USE FACTORY CAST CYLINDER HEADS FOR SPECIFIC MODEL ENGINE, MAX CUBIC INCH LIMIT=550 CI
4. TURBOCHARGERS=LIMITED TO ONE TURBO, MUST HAVE TWO 3/8" GRADE FIVE BOLTS WITHIN 1" OF EACH OTHER NO FURTHER THAN 6” FROM FACE OF EXHAUST TURBINE WHEEL
5. FUELING=LIMITED TO ONE CARBURATOR OF ANY SIZE (GAS), ONE PRESSURE VALVE OF ANY SIZE (LP), OR ONE FUEL INJECTION PUMP UP TO BOSCH P-PUMP
6. TURBO CHARGER MUST BE SURROUNDED BY SHEET METAL SAME THICKNESS AS HOOD
7. REMOVAL SIDE SHIELDS ARE ALLOWED
8. WELD ON HUBS AND AFTERMARKET CLAMP ON HUBS ARE ALLOWED
9. MAX TIRE SIZE IS 24.5-32, CUT TIRES ARE ALLOWED, MAX HITCH HEIGHT IS 20”
10. MUST HAVE WIDE FRONT END, NO TRICYCLES ALLOWED
11. ROLL OVER PROTECTION DEVICE IS STONGLY RECOMMENDED, SEAT BELTS REQUIRED.