Official 2012 Rules
These rules are in effect and the only Official Rules
Outlaw Thunder
Weight Engine #1 3,000lbs Engine #2 2900lbs
Engines
Engine #1
362 cubic inches Ford/Chevy 374 Cubic in. Mopar
Block – small blocks only, must be cast iron
Heads – cast iron only, no raised runner heads/ OEM valve angle
Cams – flat tappet or hydraulic; No rollers.
Crank shafts – No pendulum cut, knife edged or gun drilled cranks.
Valves – Stainless steel only
Rods – Any steel.
Pistons – Any
Any carburetor No electric fuel pumps
Engine Setback – #1 spark plug to be even with center of Jackbolt
No Dry Sump
Engine: #2
GM Crate Engine P/N # 88958602
Engine must remain sealed or be rebuilt to factory specifications
100 lb. weight break.
Chassis
Stock frame or front clip must extend to firewall.
Rear section maybe fabricated.
Tying of frame or X bracing allowed.
104" (+ or - 1/2") wheel base minimum required.
Minimum 1 ½ .083 roll cage tubing.
Suspension Front
Stock/OEM lower control arms;
May run aftermarket A Arms, Tie Rods, Spindles, Hubs, Steering Box/Rack and Pinions, Springs (min. 5" O.D.), and Jack Bolts OK.
No coil overs/or adjustable shocks.
Suspension Rear
Only leaf spring cars may run sliders with a 90/10 shock.
Coil spring car can run tube type lowers.
Must have 5 inch minimum outside diameter springs.
May run pan hand bar or J Bar.
May run spring loaded pull bar.
No coil over setups allowed.
One shock per wheel (non adjustable).
Coil- eliminators are allowed
Jack Bolts OK.
NO FLOATING SUSPENSION PARTS
Quick-change must have steel axle tubes. Stock type Ford 9" OK.
No 4-bar setups.
No torque arms or 5th coils.
Bodies
Stock steel or aluminum body.
Five star body ok.
Can run a fiberglass or aluminum roof and hood.
Must have a full firewall around driver.
8" max. spoiler allowed;
Wheels & Tires
Must stick a minimum of 60 on rear tires only, and front tires are Open
Any wheel – Maximum 14" width
Transmission
Stock OEM or Brinn / Bert
Fuel
GAS only E85 allowed.
Fuel cell mandatory and must be securely mounted