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Section 25 - LIGHT LIMITED PRO STOCK TRACTORS (LLP)

Unless specifically outlined below in the class specific rules, the Tractor General Rules and the overall General rules outlined above will apply.

25.1 - General Rules

  1. No component chassis.

  2. All OEM chassis Super Farm rules, including shielding, safety apply to this class.

  3. Light Limited Pro Stock Tractors will compete at a maximum weight of 8,500 lbs.

25.2 - Tires

  1. Only 24.5 X 32 tires allowed. See General Tractor Rules for dimensions.

  2. NO 20.8-38 tires allowed.

  3. HP pullers tires allowed.

  4. Pro Puller Tires are allowed.

  5. Must use tires with 48 lugs or less to run for points. Tractors utilizing tires with more than 48 lugs can run for purse only.

25.3 - Engine

  1. Engine block and head must be OEM agricultural type for that brand of engine.

  2. No aftermarket blocks allowed.

  3. Aftermarket intake and headers allowed.

  4. No engine larger than 466 cubic inches. (+1 percent) de-cubing of larger engines allowed.

  5. Deck plates are allowed.

  6. Must use original location for intake with a maximum 4-inch hole. A maximum of 1.5-inch Intake spacer is allowed. An IH dozer manifold with dual intake is legal with two (2) 3-inch holes and one cross-over pipe, that is any length.

  7. Maximum two (2) valves per cylinder.

  8. No intercoolers or aftercoolers are allowed.

  9. Maximum size injection pump is a 7100 P – pump with maximum size plungers of 13 mm.

25.4 - Head Rule

  1. Any cast or manufactured cylinder head will be accepted.

  2. No billet or aluminum.

  3. Cylinder head must retain OEM (Length/Width/Height) for engine application.

  4. Port location in head must be same as stock with manifolds using stock port bolt pattern.

  5. Valves must retain OEM angle for engine application. 2 valve per cylinder maximum.

  6. Cylinder head must retain OEM bolt pattern for exhaust manifold and intake bolt pattern must be used to attach the exhaust manifold and intake. Manifold must bolt 90 degrees to head.

  7. Cast or manufactured heads are allowed.

25.5 - Turbocharger

  1. Any 3x4 smooth bore turbo

  2. No map width enhancement (MWE) allowed

  3. Intake and exhaust wheel must protrude into housing 1/8”

  4. Refer to rule 20.6.3 “Tractor General: Turbochargers” for inspection process

25.6 - Fuel & Water

  1. VP Racing Fuel is the only fuel that is allowed for use in all pulling vehicles. VP TORQ DX fuel is allowed.

  2. VGM water is the only water injected water that is allowed.

  3. A \$50 fine will be assessed for lack of fuel and water test ports for all classes.

  4. A \$50 fine will be assessed for any minor infractions of fuel or water quality.