Hennessey Unleashes Twin-Turbo Demon 1700: A New Quarter-Mile King

Jun 29, 2025 at 5:10 PM
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Hennessey Performance, a name synonymous with extreme automotive modifications, has once again pushed the boundaries of speed and power with their latest creation: the Demon 1700. Taking the already formidable Dodge Demon 170 as its foundation, Hennessey has re-engineered this beast to deliver an unparalleled level of performance. This audacious build is set to redefine quarter-mile records, transforming the Demon 170 from a mere muscle car into a drag strip phenomenon. By abandoning conventional supercharging in favor of a twin-turbocharged setup, Hennessey has not only amplified the power output but also ignited a new conversation about the future of high-performance internal combustion engines.

The original Dodge Demon 170 was already a marvel of engineering, boasting 1,025 horsepower from its supercharged 6.2-liter Hemi V8, capable of completing a quarter-mile sprint in a blistering 8.91 seconds. However, Hennessey, renowned for their work on iconic American muscle cars and hypercars like the Venom F5, saw potential for even greater extremes. Their audacious move involved replacing the Demon's factory supercharger with a sophisticated twin-turbo system. This radical modification, reminiscent of Chevrolet's approach with the ZR1, might seem controversial to purists, given the traditional reliance of muscle cars on naturally aspirated or supercharged V8s. Yet, Hennessey's reputation precedes them, allowing for such bold deviations from the norm. By increasing the engine's displacement to 7.2 liters and integrating twin-turbochargers, the powerplant now generates an astounding 1,700 horsepower and an estimated 1,400 lb-ft of torque when fueled by E85, as showcased in their dyno test.

The standard 1,025-horsepower Demon 170 is known for its dramatic launches, producing immense tire smoke and achieving 0-60 mph in a mere 1.66 seconds. The Hennessey Demon 1700 promises an even more breathtaking acceleration experience. Hennessey confidently projects a quarter-mile time of just 7.9 seconds, which, if achieved, would crown it the fastest car on a drag strip globally. This prospective record would unseat the current holder, the all-electric McMurtry Speirling, which completed the quarter-mile in 7.97 seconds.

During the dyno testing of Hennessey's latest mechanical masterpiece, Tim Kuniskis, the CEO of Ram, was reportedly present and visibly amazed by the sheer power on display. While his attendance does not confirm any future product plans, it has certainly fueled speculation among automotive enthusiasts. There's a hopeful buzz that this monstrous twin-turbo V8 could find its way into future Ram trucks, or perhaps even invigorate the upcoming Dodge Charger lineup, saving it from potential criticisms. Regardless of its eventual applications, Hennessey's creation is a remarkable achievement, a testament to pushing performance boundaries, and it leaves the automotive world eagerly anticipating what groundbreaking innovations will emerge next from their workshops.