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A trophy truck, also known as a Baja truck or trick truck, is a vehicle used in high-speed off-road racing. This is an open production class and all components are considered legal unless specifically restricted.
Although any truck that meets the safety standards can race the trophy truck class, they, for the most part, feature long travel suspensions and high power (800hp+) engines. They are intended for desert racing only, and are not street legal. These vehicles are properly known as "trophy trucks" when raced in SCORE International sanctioned races, and "trick trucks" when raced in Best in the Desert sanctioned races.
Since the class was introduced in 1994, the development of the trophy truck has been rapid. Prior to that date, SCORE's Class-8 rules dictated that the entrants must use a production frame. The introduction of the trophy truck class brought with it new freedom for competitors with minimal rules in its construction. Intense development in full-tube chassis and suspension travel led to previously unseen performance and speed.
Gasoline engines are naturally aspirated, and typically Ford or Chevrolet V8 engines, generating in excess of 1100 hp and 950lb-ft of torque. Turbo charged diesel motors are allowed, with a minimum size of 5.0 liters to a maximum size of 6.6 liters, with two turbo chargers. Turbo engines must be fitted with an air restrictor.
Suspension travel is around of wheel travel in the front and of travel in the rear, although this may vary depending on chassis design. Most trophy trucks use independent A-arm front suspension designs. In the rear, most trucks feature a three or four-link setup with a solid rear axle, while some use various types of independent suspension. Suspension and damping duties are handled by one or two per wheel, usually consisting of one coil-over and one by-pass shock. Brenthel Industries brenthelindustries.com Fox Racing Shox, Bilstein, and King Shocks are popular among competitors.
Tires are typically tall or larger on lightweight alloy wheels. Trophy trucks usually carry two spare tires in case of puncture. Total wet weight is around minimum, with the mass necessary to absorb the rougher terrain in desert racing.
Transmission is a choice of either three-speed automatic or six-speed sequential gearbox. The three-speed TH400 gearbox predates the Baja 1000 but remains popular among competitors due to the long gear ratios and capability of handling the torque spikes caused by off-road racing. The six-speed sequential gearbox appeals to competitors due to the ease of changing gear ratios quickly.
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