Hennessey Performance Texas

The Hennessey Venom 650R is one of the first offerings provided from the tuning company. Available as a package to the 1996 Dodge Viper GTS, the Venom 650R was one of the fastest road legal cars in the world. Upgrades included a US$37,000 engine upgrade that utilised enlarged cylinder bores, and longer stroke to increase displacement from the stock 488 cu in (8. 0 L) to 514 cu in (8. 4 L) along with forged steel connecting rods (titanium rods were an extra $3500) and forged aluminum pistons; the whole assembly was then balanced and blueprinted to bring the total power output to 650 hp (659 PS; 485 kW) at 5,800 rpm and 650 lb⋅ft (881 N⋅m) of torque at 4,500 rpm bumping the compression ratio up to 10. 5:1. On the intake side, a competition airbox feeds 70-millimeter billet throttle bodies and a port-matched intake manifold. On the exhaust side, a set of tuned-length stainless steel headers sent spent gases back to a 3. 0-inch stainless exhaust system that retained the stock catalytic converters, but allowed them to be easily bypassed for track day performance. New engine management software bumped the idle up to a smoother 1,000 rpm, disabled the 1-4 skip-shift transmission feature, turned the cooling fans on sooner, and packed recalibrated fuel and ignition curves. Completing the package was the VenomAero carbon fiber body upgrade that cut weight, added functional brake cooling ducts along with a rear wing and optimized downforce. All of these modifications allowed the car to accelerate from 0–60 mph (0–97 km/h) in 3. 3 seconds, complete the 1/4-mile in 10. 8 seconds at a speed of 130. 1 mph (209 km/h) and propel the car to a top speed of over 215 mph (346 km/h). A Brembo race spec braking system and a Penske adjustable suspension system with 30 variable damping settings were available as an option. The total cost of the package stood at US$108,500 excluding the price of a stock Viper GTS.

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