Hennessey’s Demon 1700 Makes More Torque At The Tires Than A Bugatti Chiron Makes At The Crank After two years of teasers, the twin-turbo Demon 1700 has a final number, and it arrives only on the right fuel https://www.carscoops.com/author/stephen-rivers/ by Stephen Rivers 39 minutes ago by Stephen Rivers Hennessey Performance Engineering first teased the Demon 1700 back in 2024. After last year’s engine dyno teaser, the twin-turbo build has now hit the rollers. Full output requires E85 and up to 23 psi of boost from the setup. When the Dodge Challenger SRT Demon 170 came out of hiding, Hennessey decided to take advantage. It would build a more extreme version called the Demon 1700 , a figure that would denote its crank horsepower. Now, two years later, it’s finally done, and the results are genuinely impressive. This street-legal monster appears primed to embarrass almost anything with a license plate. Last year, Hennessey showed off engine dyno testing for the fully reworked 7.2-liter HEMI, proving the package wasn’t just marketing hype. Until now, we hadn’t seen the finished product. It has finally been to a dynamometer, and Hennessey is giving us a front-row seat of what it calls the “world’s most powerful” Dodge Demon 170. More: VIN-Matched Dodge Demon Pair Sell For Less Than Some Paid For One Demon 170 In a new video, Chief Powertrain Technical Specialist, Jason Haynes talks through some of the challenges and wins the team had in getting to this milestone. That engine dyno test proved that the powertrain could make 1,700 ponies (1,268 kW). This new chassis dyno test provides us with insight into what owners will get to play with at the contact patch. Specifically, the car makes 1,355 horsepower (1,010 kW) and 1,202 lb-ft (1,630 Nm) of torque at the rear tires. By way of completely unnecessary comparison, the Bugatti Chiron is factory rated at 1,479 hp (1,500 PS / 1,103 kW) and 1,180 lb-ft (1,600 Nm) at the crank, which is a much kinder place to measure things.
