The 800TT viper conversion performed by Hennessey Motorsports yeilds one of fastest roadgoing supercars of our time. Twin Garett superchargers help to nearly double the the power of a standard spec GTS. An astonishing 830HP is realized with 725 of those horses making their way to the rear wheels.. A 2.4 second zero to sixty run was accomplished in the rain by an editor of Motor Trend. Although this figure is the most popular 0-60 time for this car, it was achieved using Thompson E.T. ‘cheater’ slick tires.

The engine conversion costs $55 000 USD and includes:

Twin Garett ball bearing, water/oil cooled turbochargers with integral wastegates HMS Aluminum Air to Air Intercoolers . Complete Turbo Tubing, Polished Stainless Inlet Tubes and Hoses/Clamps Custom airbox with K&N filters Upgraded fuel injection system HMS 3 in. Stainless Steel Exhaust System with Hi-Flow Catalysts Polished/Ported vemon cylinder head with 2.02in stainless intake valves, 1.65in stainless exhaust valves, bronze valve guides, heavy duty valve springs & titanium retainers Honed/Ported instake manifold T&D 1.7 shaft rockerarms with hardened steel pushrods HMS lifter upgrade HMS aluminum flywheel upgrade HMS 2-core radiator upgrade HMS short throw shifter Venom floor mats, valve covers & serial numbered carbon fibre dash plaque