2018 Dodge Challenger SRT Demon Promises Higher Launch Force Than Hellcat

The 2018 Dodge Challenger SRT Demon didn’t just chase a horsepower number, it chased a launch force so extreme that Dodge needed physics, not marketing, to explain it. Only 3,000 were built for the U.S., each riding on drag radials as standard equipment. Here’s what actually happens in the half-second after the trans-brake releases, and why the numbers still stun muscle car fans years later.

The forthcoming 2018 Dodge Challenger SRT Demon is making enough buzz even before its official release. It is easy to know why this muscle car is required to be the fastest among all other muscle cars ever created!

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Before a single customer car ever touched a dragstrip, Dodge’s SRT engineers were already making a claim that sounded almost too aggressive to be real: this muscle car would launch harder than the laws of traction were supposed to allow. The 2018 Dodge Challenger SRT Demon rolled out of Detroit riding on skinny front runner wheels and drag radials as factory-standard equipment, a first for any production car built for public roads. Underneath the aggressive hood scoop sat a supercharged 6.2-liter HEMI V8 rated at 840 horsepower and 770 lb-ft of torque, but the number that actually mattered wasn’t peak output, it was what happened in the half-second after the driver released the trans-brake. That figure, once Dodge finally published it, forced every other muscle car maker to rewrite what “launch force” even meant. So what exactly is happening inside that driveline that makes a factory car pull harder than cars costing three times as much?

The Physics Behind the Launch

Dodge’s Torque Reserve and TransBrake system generates 317 lb-ft of incremental torque on top of the engine’s base output, producing a combined launch torque of 534 lb-ft. By the time that force reaches the rear wheels, the driveline is seeing roughly 11,164 lb-ft of ring gear torque, enough to produce a 1.8g launch, more g-force than most sports cars generate under hard braking. The result was a 9.65-second quarter mile and a 2.3-second sprint to 60 mph, numbers that made the Demon the first production car to run under 10 seconds in the quarter mile straight from the factory. The NHRA actually barred it from record-legal drag racing classes because it was considered too fast for its own category.

Why Dodge Only Built 3,000

Dodge capped U.S. production at 3,000 units, treating the Demon as a halo car for the entire SRT and Hellcat lineup rather than a volume seller. That scarcity, combined with the drag-focused equipment no other muscle car offered from the factory, has kept demand and collector premiums high years after the last one rolled off the line. For anyone chasing the purest expression of Dodge’s Hellcat era, the Demon remains the benchmark the rest of the lineup was built to chase.

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