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Dodge Viper packs a 450-kW punch

2007-11-14 08:06
Holy smoke! Dodge's Viper SRT10 ACR (for American Club Racer) puts out 450 kW and 760 Nm from its 8.4-litre V10. This street-legal annihilator makes its debut at next week's LA Auto Show.

The latest from Chrysler's Street Racing Technology (SRT) division, this Viper uses an all-aluminium V10 to produce those heart-stopping figures.

But while Dodge maintains this is a track-bred street car, its styling does include some features that could prove beneficial in a track environment. These include a variable geometry front splitter and an adjustable rear wing in carbon fibre.

The car's front fog lamps are replaced with lightweight filler panels.

Very very Viper

ACR also features a bespoke two-tone paint job and is available in five colours - Viper Red, Viper Black, Viper Violet, Viper Bright Blue Metallic and Viper Very Orange.

The interior is carried across from the standard Viper SRT10, but comes with an optional "Hard Core" package that reduces weight by 18 kg with the deletion of the audio system, silencer pad, carpeting in the boot and tyre inflator.

Suspension is specifically modified for track performance and features coil-over racing dampers adjustable for damping and ride height. A new front stabiliser bar increases torsional rigidity.

The ACR uses the Viper SRT10's new 8.4-litre aluminium V10 engine that produces 450 kW and 760 Nm of torque. It features cylinder heads equipped with Computer Numerically Controlled (CNC)-shaped combustion chambers, larger valves and Variable Valve Timing (VVT).

Limited slip diff

Power is put to the rear wheels via a six-speed manual gearbox. The car is also fitted with a speed-sensing limited slip differential.

Stopping this beast is the duty of StopTech two-piece, slotted lightweight rotors combined with the Viper SRT10's Brembo calipers that reduce rotating inertia and unsprung mass, improve brake cooling, and significantly reduce fade even under extreme conditions.

Combined with Michelin Pilot Sport Cup tyres and Sidewinder lightweight wheels, this contributes to a further weight saving of 27 kg.

However, since the standard 2008 Dodge Viper SRT10 and SRT10 ACR are available only in left hand drive configuration, this car will not be available for sale in South Africa.


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