Hennessey 2021 Ram 1500 TRX Mammoth cranks 1,012 horsepower

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Ram took first place on the horse podium when it released the Hellcat-powered 1500 TRX in 2020. The truck’s 702 horsepower output puts it comfortably ahead of the Ford F-150 Raptor, at least for now, but American tuner Hennessey saw a lot of room for improvement. It added more than 300 horses to the TRX’s cavalry.

Hennessey is a master of V8 technology, so it was only a matter of time before injecting more power into the TRX. It announced two models, Mammoth 900 and Mammoth 1000 respectively, and each number vaguely corresponds to the V8’s new output. The 900’s 6.2-liter produces 912 horsepower and 873 pound-feet of torque, increases of 210 and 223, respectively, compared to the standard TRX. Hennessey achieved these numbers by upgrading the supercharger pulleys and making relatively fundamental changes to the intake and exhaust systems.

Going to 1000 unlocks 1,012 horsepower and 969 pound-feet of torque, numbers that give the 6,300-plus-pound truck the uncanny power to hit 100 mph in 3.2 seconds from a stop. It flies through the quarter mile in 11.4 seconds at 120 mph. Building a pickup with supercar-like acceleration required installing a larger 2.65 liter supercharger, adding high-flow fuel injectors, and recalibrating the ECU. Adjustments to the inlet and outlet are also on the menu. Surprisingly, it doesn’t sound like Hennessey made any significant internal changes to the engine or transmission, suggesting the standard components can handle a tremendous amount of power.

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Context is useful here. Released in 2013, the fifth and final generation of the Dodge-became-SRT-again-Dodge-Viper took 3.3 seconds to sprint from zero to 100 km / h, registering a quarter-mile time of 11.5 seconds.

The Mammoth 1000 (pictured above), shown in a computer generated sketch, will also get 20-inch wheels wrapped in 35-inch off-road tires, a 2.5-inch suspension lift, custom bumpers at both ends, additional front LEDs, electronically retractable steps, plus a range of model-specific decals. Inside, Hennessey added a numbered plaque.

200 units of the Mammoth 1000 will be available for the 2021 model year and the price will start at $ 135,350 including the cost of the donor truck (which has a base price of $ 71,790) and a warranty that is valid for two years or 24,000 miles. In other words, you get 30.6% more equity than stocks for about 40% more money.

If the Mammoth isn’t wild enough, Hennessey also plans to offer a six-wheeled version of the TRX, powered by the mighty Mopar Hellephant crate engine. It is tuned to develop 1,200 horsepower in this application meaning each wheel will receive 200 horsepower. The price is pegged at $ 500,000 and production is limited to three samples.