Farm Stock
Weight Classes:
4,700 lbs (3 mph)
5,700 lbs (3 mph)
6,700 lbs (3 mph)
7,700 lbs (4 mph)
9,500 lbs (4 mph)
10,500 lbs (10 mph)
11,000 lbs (10 mph) No duals
1. All general rules apply.
2. Tractors will be stopped if the front wheels exceed 36 (thirty six) inches in height. The flagman has complete discretion.
3. No cut tires allowed.
4. 50 (fifty) feet is the maximum distance to change speed.
5. 3 (three) mph for 4,700 & 5,700 & 6,700. 4 (four) mph for 7,700, 9,500. 10 (ten) mph for 10,500 and 10 (ten) mph & no duals for 11,000 and the 1st 100 (one hundred) feet to get the speed set for Farm Stock classes.
6. Tractor must be factory stock, no alterations.
Improved Farm Stock
Weight Classes:
5,750 lbs
6,750 lbs
1. All general rules apply.
2. Blocks are limited to 1 (one) size up in series. Example: a Farmal “M” can have a “450” block. An Oliver 88 may have a Super 88 block.
3. No turbos will be allowed.
4. No down draft carburetor. Unless it was original factory equipment.
5. No airplane or tank carburetors.
6. No cut or back ground tires and maximum size limit of 18.4 X 38.
7. A speed limit of 7 (seven) mph while pulling.
8. The tractor must have wheely bars that can support the tractor.
9. A distance of 50 (fifty) feet maximum will be allowed for shut down to change speeds.
10. Tractors will be allowed to have side shields.
11. Rear fenders are recommended.
12. No 800 (eight hundred) components in Minneapolis Molines. No custom fabricated intakes, no headers.
Open Hobby Stock
Weight Classes:
6,000 lbs
6,700 lbs
1. All general rules apply.
2. Must have wheely bars that will support the tractor.
3. Must have a scatter blanket. Or ¼ (one quarter) inch metal plating.
4. Must have a kill switch.
5. A distance of 100 (one hundred) feet for shut down.
6. Converting a diesel head to gas will be allowed.
7. If the engine will bolt in without alteration of the frame, engine will be allowed.
8. Helmets are required.
9. Tractors must have rear fenders.
10. Roll cage required.
11. 5 (five) point harness required.
12. Turbos will be allowed.
Open Super Stock
Weight Class:
8,300 lbs
All safety rules apply
Modified Class 1. All general rules apply. 2. Helmets required. 4. A kill switch is required. 9. A deadman’s throttle is required. (Spring loaded, no stop). 1. Small block, not over 400 (four hundred) cubes. 2. Carburetor not to exceed 650 (six hundred fifty) cfm. 3. Maximum tire size 20.8 X 38. (Maximum wide 20.8). 4. Cast block, factory automotive block, no crate engines. 5. Cast iron heads. 6. Cast iron intake. 7. No fuel injection, no alcohol. 8. No nitrous oxide. 9. All safety rules (length, width, height) must comply with other modified classes. 4 X 4 Trucks 6,800 lbs - Gas only, No dually's. 8,000 lbs - Open, Gas or deisel, no nitrous. **A hook fee of $25.00 will be charged for the 8,000 open class and only the 8,000 open class, no matter if you are a member or not.** Rules for 6,000 lbs Gas only class 2. No solid frames or suspension. 3. Trucks must pull from a receiver style hitch or bumper. Hitches must attach to the frame behind the rear axle nothing extending further forward of the rear axle. Must have front and rear bumpers.
Weight Classes:
5,800 lbs
6,000 lbs
Safety Rules
3. Fire jacket is required.
5. A safety blanket is required.
6. A roll cage is required.
7. A 5 (five) point harness is required.
8. A fire extinguisher on the tractor is required.
10. A neutral safety switch is required.
11. One engine, must be a cast block.
12. 1 (one) carburetor.
13. Maximum tire size will be 30.5 x 32.
14. A distance of 100 (one hundred) feet for shutdown.
15. Weld on hubs on axles is required, bolt on hubs are not allowed.
Econo-Mod
Weight Classes:
5,200 lbs
5,500 lbs
Weight Classes:
6,500 lbs - Gas only, No dually’s.
1. Must be street legal.
4. Hitch height of no more than 26 inches.
5. Weight bars must not extend more than 48 inches of the center of the front axle. (Where the weights mount, not including the weights).
6. Single fuel only, no nitrous.
7. Engine must match make of the vehicle.
8. No suspension stops in the rear (spring clamps only).
9. DOT tires. Tires may not extend no more than 2 inches beyond body or flares.
10. No Dually's or diesels
11. Trucks must be street legal! You must be able to drive on the road (this means all the blinkers, lights, mirrors).
Unlimited Modified
Weight Classes:
6,300 lbs
6,500 lbs
No engine restrictions.
All general modified safety rules apply.
Two-Wheel Drive Trucks
Weight Classes: Naturally aspirated automotive type motor, any fuel.
5,800 lbs
6,200 lbs
National dimensions.
Semi's