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Here’s How The Upgrade Compares To Factory Equipment

Hennessey Mammoth 900 Ram TRX
Screenshot via YouTube

The stock Ram 1500 TRX is by far the most extreme stock pickup truck ever made. With 702 hp, 650 lbs feet of torque and a 4.5 second 0-60 mph sprint, the Hellcat-powered pickup is faster than most other vehicles on the road. But for some, that insane performance won’t be quite enough, and that’s where Hennessey Performance Engineering steps in with their Mammoth 900 package for the Ram TRX. As the name suggests, it boosts power to an absurd 900 hp, but it’s hard to conceptualize what those on paper figures mean in the real world. Luckily, Hennessey has provided a handy YouTube video comparing the stock TRX to their tuned version.

The Hennessey Mammoth 900 package for the Ram TRX is more than just a software tune. The engine upgrades consist of a ported supercharger snout, injectors, upgraded pulleys, upgraded fuel system and a software tune to make sure it all runs properly. Here’s what that translates to when you drag race it against a stock TRX. Remember, the standard truck is no slouch.

The results are even more dramatic than we expected. In each of the two drag races, the Hennessey Mammoth 900 tuned Ram TRX pulls somewhere between 1-2 car lengths to the stock truck by the end of the run. Considering the TRX has run plenty of sub 13 quarter miles, the Mammoth 900 must be close to hitting an 11. That’s madness in a vehicle weighing over 6,000 lbs, and as the guys in the video mention many times, wearing 37-inch tires.

Hennessey have also put a Mammoth 900-equipped Ram 1500 TRX on the dyno, giving a nice comparison to their previous test of a stock truck. In that test, the TRX pushed out 583 hp to the wheels, about what one would expect with a standard drivetrain loss. The Mammoth 900 ends up putting down 728 hp and 679 lbs-ft of torque to the wheels, about a 150 hp increase.

The craziest thing is Hennessey have an even more powerful Mammoth 1000 package in the works, as if a 900 hp pickup truck isn’t quite enough.

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Written by Sam Krahn

Sam graduated with a communications Degree from Wayne State University, where he was also a member of the swim team. He's interested to see how new technology will affect the American performance vehicle landscape.

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