2025 11,500 Altered Farm and 12,500 Altered Farm Rules
1. Weight classes are 11,500 & 12,500.
2. Maximum 2,850 RPM on and off the track at all times.
3. Pressed steel wheel center are allowed.
4. Functional rock shaft housing required if so equipped.
5. Factory wide front-end.
6. PTO is optional.
7. Tire size is limited to 20.8-38 or 18.4-42.
8. Top cut tires are allowed. No front cutting allowed.
9. Stock appearing pump.
10. Tractors are limited to a single Borg Warner S360, 2.36" inlet with Borg Warner part number 177272. Turbos are to be purchased from IFPA and sealed with board approval. Seals will be on both the compressor and turbine housings. If competing for IFPA points, charger must be purchased from IFPA.
11. Factory inter-coolers are permitted for the make and model.
12. Pusher pumps allowed.
13. Tractor must have a stock appearing engine components and stock appearing injection pump for make and model of tractor.
14. REQUIRED: Air shut off.
14b. REQUIRED: Electric fans.
15. REQUIRED: Tip over bars (specifications - Rule 27 in the General Rules).
16. Maximum draw bar height of 20 inches with a minimum of 18 inches from center of axle.
17. A clevis may not be used as a hitching eye.
18. RPM sensor required with Gordyville style hook up.
19. One hook per class per tractor.
20. Grace period for 1 event (must be approved by tech committee and track judge).
21. NO WEIGHT ON 3 POINT HITCH.
22. No curved exhaust pipes.
23. Rear weight bracket and weights must not interfere with hooking and unhooking
of the sled. Need to leave plenty of room beside and above the hitching eye.
24. Run a Tack box at every pull.
25. Stock cross over tube or shortest distance.
26. RECOMMENDED: Side Shields.
27. Replacement Block up to 466 cubic inch or stock cubic inch are allowed.
28. No water injection systems on tractor.
29. IFPA General Rules apply (except 41).
30. REQUIRED: Fire Suit Jacket, long pants and Helmets.
31. Tractors must have a minimum of a 2 Post Rops that is capable of supporting the weight of the tractor in the event of a roll over. All tractors must have tie bars running from the axle housings to the frame rails.
32. REQUIRED: Seat Belts
33. RECOMMENDED: Air Shut Off can be easily reached from the seat.
34. RPM Limit: 1 grace hook if RPM is not working. If over RPM the driver will be DQ.
1. Weight classes are 11,500 & 12,500.
2. Maximum 2,850 RPM on and off the track at all times.
3. Pressed steel wheel center are allowed.
4. Functional rock shaft housing required if so equipped.
5. Factory wide front-end.
6. PTO is optional.
7. Tire size is limited to 20.8-38 or 18.4-42.
8. Top cut tires are allowed. No front cutting allowed.
9. Stock appearing pump.
10. Tractors are limited to a single Borg Warner S360, 2.36" inlet with Borg Warner part number 177272. Turbos are to be purchased from IFPA and sealed with board approval. Seals will be on both the compressor and turbine housings. If competing for IFPA points, charger must be purchased from IFPA.
11. Factory inter-coolers are permitted for the make and model.
12. Pusher pumps allowed.
13. Tractor must have a stock appearing engine components and stock appearing injection pump for make and model of tractor.
14. REQUIRED: Air shut off.
14b. REQUIRED: Electric fans.
15. REQUIRED: Tip over bars (specifications - Rule 27 in the General Rules).
16. Maximum draw bar height of 20 inches with a minimum of 18 inches from center of axle.
17. A clevis may not be used as a hitching eye.
18. RPM sensor required with Gordyville style hook up.
19. One hook per class per tractor.
20. Grace period for 1 event (must be approved by tech committee and track judge).
21. NO WEIGHT ON 3 POINT HITCH.
22. No curved exhaust pipes.
23. Rear weight bracket and weights must not interfere with hooking and unhooking
of the sled. Need to leave plenty of room beside and above the hitching eye.
24. Run a Tack box at every pull.
25. Stock cross over tube or shortest distance.
26. RECOMMENDED: Side Shields.
27. Replacement Block up to 466 cubic inch or stock cubic inch are allowed.
28. No water injection systems on tractor.
29. IFPA General Rules apply (except 41).
30. REQUIRED: Fire Suit Jacket, long pants and Helmets.
31. Tractors must have a minimum of a 2 Post Rops that is capable of supporting the weight of the tractor in the event of a roll over. All tractors must have tie bars running from the axle housings to the frame rails.
32. REQUIRED: Seat Belts
33. RECOMMENDED: Air Shut Off can be easily reached from the seat.
34. RPM Limit: 1 grace hook if RPM is not working. If over RPM the driver will be DQ.