6,000 lb Lite Limited Super Stock

 

*Drop 2 hooks per year in the LL SS class only*

 

Engine

1. Cubic inch

       A. Diesel engine- 470

       B. Spark ignition on alcohol- 370

       C. Spark ignition on gasoline naturally aspirated- 850.  There will be no 850 cid naturally aspirated tractors allowed in the class after the 1st competitor now competing (David Bewley) rebuild.

2. A 1% tolerance will be given on cubic inch limitations to allow for normal engine wear

       A. All engines will be checked for cubic inch before the first pull.

3. No V-8 engines permitted

4. Cast iron OEM cylinder heads only. Cylinder head must match block

5. Cylinder heads limited to 2 vavles per cylinder

6. Engine must match brand of tractor

7. No intercoolers and/or after coolers allowed

8. Rear of engine must be in stock location for make and model of rear end and transmission housing.  Maximum 1 inch adapter plate

9. No super chargers allowed

10. Wheel housing: Single turbo charger of a size not to exceed a 3 inch diameter measured at the front of the wheel with one single air inlet with no additional openings in compressor housing outside of the 3 inch inlet

       A. Compressor wheel must enter into the compressor housing

       B. No MAF enhancement. All plugs will be welded non-removable

11. No fuel injection pump larger than a 6 cylinder P series pump will be accepted

 

Frame

1. Maximum length: 13 feet measured from center of rear axle to forward most point excluding tow hook

2. Maximum wheelbase: 114 inches

3. OEM tractor rear end and transmission housings only will be accepted. No component tractors allowed

4. Hitch will be no shorter than 18 inches measured from the center of the rear axle to the hooking point

5. Maximum hitch height: 20 inches

 

Tires

1. Maximum tire size: 30.5 x 32

2. Minimum tire size: 18.4 x 38

 

Fuel

1. Acceptable fuels are diesel fuel, alcohol, and gasoline

2. No oxygen carriers or combustion accelerators will be permitted

3. No ether starting aid can be on the tractor

 

Weight

1. Weight for the class is 6,000 pounds with no tolerance given at time of weigh-in

2. All tractors must carry at least 200 pounds of movable weight

 

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