3.0 Pro Stock Diesel 4x4 Rules 2021

1. Engine Limitations

1. Must run Diesel Fuel. (No nitrous or propane allowed)
2. The turbocharger is smooth faced intake housing, limited to a maximum of 3.0" inlet, (no map ring) with all air entering  through the 3.0" opening.  Intake wheel must protrude 1/8th inside of opening.
3. Must be an engine that was available in a 1 ton diesel pickup

2. Chassis, Body, and Powertrain

1. Open Drivelines are permitted. 
2. No fiberglass body parts with the exception of the hood and tailgate
3. Must be a factory style frame.  No tubular chassis allowed.  Any kind of bracing is allowed.
4. Hitch will be 26 inches and no closer than 44 inches from center line of rear axle.
5. Weight Frame can be no further forward than 60" from the center of the front rear.
6. 158" Maximum Wheelbase

3. Tires and Wheels

1. Tires must be DOT approved and limited to 35" X 12.50" max tire size (No cutting or grooving).
2. Duals on the rear are allowed.

4. General Class Rules

1. Test puller MUST return to 6th place if they decide to drop their pull.
2. If any issues arise during the season the rule committee will meet and make a final decision.
3. If caught cheating, the rules committee will decide the penalty which may include up to a one year suspension.
4. Must be a Dragon Motorsports member to receive points.

5. Safety

1. Truck must be equipped with a blow proof bell housing or transmission shields / blankets.
2. Working kill switch with a 1" hole for a hook point at the rear of the truck,
3. All U-joints must be fully shielded and all drive shafts must have rigid loops to catch the shaft in the event of breakage.
4. All competitors must wear a helmet.
5. Must have a cross in the exhaust pipe to stop made out of at least 3/8 inch round stock.
6. Fire suits are recommended.

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2016 Purse Structure $1500 total

1. 350
2. 265
3. 200
4. 165
5. 125
6. 115
7. 105
8.  75
9.  60
10.  40