Hennessey HPE700 Twin Turbo based on 2014 Corvette Stingray

Article by Christian Andrei, on February 12, 2014

Hennessey unveiled today its latest creation: HPE700 Twin Turbo based on the 2014 Corvette Stingray. This new supercar comes with the same 6.2-liter V8 engine found on the standard version, but Hennessey installed a twin turbo system that uses a pair of precision ball bearing 62 mm turbochargers producing 7 psi of boost pressure.

The HPE system is handcrafted and uses mandrel-bent stainless steel tubing throughout and incorporates dual turbo wastegates. Moreover, twin blow-off valves found on the intercooler’s TIG-welded aluminum plenum are prominently displayed when the hood is opened. If the standard engine delivers 455 hp and 450 pound-feet of torque, thanks to Hennessey, the power delivered now is 707 hp and 661 pound-feet of torque.

The standard 2014 Corvette Stingray sprints from 0 to 60 mph (96 km/h) in 3.8 seconds, while the new Hennessey HPE700 Twin Turbo zooms in just 2.9 seconds (1/4 mile in 10.5 seconds @ 135.4 mph or 218 km/h). Top speed is in excess of 210 mph or 338 km/h. As you can see from the photos, the HPE700 Twin Turbo 2014 Corvette Stingray also comes with a new CarbonAero carbon-fiber front spoiler, side sills and a rear lip spoiler, that provide additional overall downforce.

Pricing starts at $120,000 and includes the base Corvette Stingray with 3LT and Z51 factory options. Hennessey plans to produce only 24 examples of the HPE700 Twin Turbo Corvette for the 2014MY so you’d better hurry up if you want one!

Press Release

Hennessey HPE700 Twin Turbo

Throughout its 60-year history, America's sports car has been synonymous wîth performance, and the newest generation is clearly no exception. The C7 Corvette Stingray has a vastly stiffer aluminum structure that's 99 lb lighter than before, a new LT1 6.2-liter V-8 wîth 460 bhp and improved fuel economy, plus a wedgy, low-slung shape that's fresh yet instantly identifiable as a Corvette. But it's not the Hennessey way to leave well enough alone-even if that 'well enough' baseline already represents one of the quickest-accelerating sports cars on the planet.

The Hennessey HPE700 Corvette, expected to debut in October 2013, will pre-empt the factory's C7 ZR1 and may well out-accelerate it too wîth Hennessey's 700-bhp performance package incorporating the Eaton TVS R2300 supercharger. Packing 8 psi of boost through custom CNC-ported factory cylinder heads, working wîth proprietary intake and fueling systems plus a recalibrated ECÚ, the system should provide enough sheer thrust to thrill even the most jaded enthusiast. Transmission choices include either a 7-speed manual or 6-speed automatic.

Visually, the HPE700 Corvette can be made to hit as hard as its powertrain, wîth Hennessey's optional CarbonAero™ body treatment consisting of an aggressive front splitter, notched rear spoiler, side sills and a hood-the last wîth a deeply drawn power dome and dramatic central vent that both decreases underhood temperatures and increases downforce by evacuating air. The body pieces are made of hand-laid carbon fiber, and in typical Hennessey fashion they increase downforce while still striking that delicate balance between lòòking aggressive and not being overdone. 'We're only interested in changes that deliver a measurable increase in performance, period,' says company founder John Hennessey. Optional 10-spoke H10 alloys shod wîth Michelin Pilot Super Sport tires fill out the wheel wells wîth the appropriate amount of menace.

Special touches and options can further individualize the HPE700 Corvette. Interior details haven't been finalized at this early date, but each car will come wîth dash and engine plaques displaying the serialized build number. An optional coilover suspension system utilizing Penske double-adjustable shocks will be offered, as will a Brembo brake upgrade wîth carbon-ceramic rotors. Less powerful variants-a normally aspirated HPE500 and supercharged HPE600-will be offered too, and all components that comprise the HPE complete cars will be available individually.

All Hennessey cars are dyno-tested at HPE's headquarters in Sealy, Texas, and performance-validated at the company's on-site test track, Lonestar Motorsports Park. The HPE700 Corvette is covered by a 3-year/36,000-mile powertrain warranty, and can be ordered directly through Hennessey Performance Engineering or through any local Chevrolet dealership.

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