Hennessey Viper Venom 1000 Twin Turbo

The Hennessey Viper Venom 1000 Twin Turbo is an upgraded version of the Dodge Viper offered for sale as a whole car or as an upgrade by Hennessey Performance Engineering, also known as HPE. It comes in two varients, a coupe and a convertible. It has a theoretical maximum production run of 24 vehicles [http://www.hennesseyperformance.com/hennesseyperformance/ItemDetail.php?Item_ID=238&cart=jLpulyNP&DoThis=Dodge+Viper+%282008%29&ActionReq=Where Hennessey Performance Engineering - Item Detail Page ] ] . HPE claims the Venom 1000 Twin Turbo is "The fastest and most powerful limited-edition street car in the world."

As tested in 2006 by Motor Trend the coupe variant weighed 3468 lb, cost $187,710, and had a 0.39 drag coefficient [http://www.motortrend.com/roadtests/coupe/112_0606_performance_sports_coupe_comparison/ 2006 Chevrolet Corvette Z06, 2005 MTI Pontiac GTO, 2005 Livernois Ford Mustang GT, 2005 Lingenfelter Chevrolet Corvette, 2006 Hennessey Dodge Viper Coupe and 2005 Accufab Ford GT - Performance Sport Coupe Comparison & Review - Motor Trend ] ] .

=HPE Modifications=

Engine

The stock 2003 Viper V10 motor puts out 500 Brake horsepower (370 kilowatts) and 525 ft·lbf (712 N·m). HPE increases the output to about 1100 hp (the rear wheels receive 983.5 [http://www.motortrend.com/roadtests/coupe/112_0606_performance_sports_coupe_comparison/chassis_dyno.html Strike Force Chassis Dyno - Performance Sport Coupe Comparison & Review - Motor Trend ] ] horsepower (733 kilowatts)) and 1,100 ft·lbf (1,490 N·m) ( rear wheels receive 981 foot pounds (1329 newton meters)) of torque with the following modifications:

* Engine displacement is increased via stroking to 522 CID (8.55 l) and the compression is lowered to 9.0:1 compression ratio
* Twin Garett ball bearing turbochargers
* A front-mounted air-to-air intercooler

Body

* VenomAero body modifications (front air dam, rear diffuser & spoiler)
* Lowered suspension
* 2-way adjustable coil-over shock absorbers
* Brembo upgraded braking system
* Adjustable traction control
* Quaife differential
* Hennessey Venom 7R forged aluminum wheels (19x10 front, 20x13 rear)
* Michelin Pilot Sport 2 tyres: 275/30 YR19 front, 335/30 YR20 rear

Interior

* Limited edition leather interior with custom embroidery
* 5-Point racing harnesses
* HPE custom floor mats
* DVD navigation system

Legality

According to testing by Motor Trend in 2006, the Venom failed california street-legal smog testing due to excess carbon monoxide, but is legal in the other 49 states. output [http://www.motortrend.com/roadtests/coupe/112_0606_performance_sports_coupe_comparison/emissions_testing.html Strick Force Emissions Testing - Performance Sport Coupe Comparison & Review - Motor Trend ] ] .

=Performance Characteristics=

Acceleration:
* 0-60 mph: 2.72 s
* 0-100 mph: 5.51 s
* 0-150 mph: 10.0 s
* 0-200 mph: 19.6 s

Top Speed: convert|255|mi/h|km/h|abbr=on^{HPE Claimed}

Road & Track 0-200 shootout test winner, best run (Sept 07)

* 0-60 mph: 2.9 s
* 0-100 mph: 7.50 s
* 0-150 mph: 9.70 s
* 0-200 mph: 19.6 s

Top Speed: 217mph (tested 255mph)

Test driver Steve Millen: "Holy Hell! This is a wild ride. It just wants to go sideways in every gear."

References

External links

* [http://www.motortrend.com/av/features/112_0703_hennessey_viper_venom_1000_texas_mile Video of the Venom]
* [http://www.motortrend.com/roadtests/coupe/112_0606_performance_sports_coupe_comparison/ 2006 Road Test by Motor Trend]