The
updated V-10 engine has an estimated power rating of 640 horsepower at
6,150 rpm, an increase of 40 horsepower over the 2010 Viper. Producing
600 lb.-ft. of torque at 4,950 rpm, the Viper puts out the most torque
of any naturally aspirated sports car in the
world.
Viper's legendary 8.4-liter V-10 engine
features a new composite intake manifold, lighter forged pistons,
stiffer pushrods, a revised camshaft profile, sodium-cooled exhaust
valves and freer-flowing exhaust catalysts - all contributing to the
40-horsepower increase.
The new intake manifold is
tuned using computational fluid dynamics (CFD), a high-performance
computer-based simulation that has improved everything from Formula 1
car aerodynamics to nuclear submarine performance for silent running.
The new forged pistons are not only lighter, but stronger and more
durable to ensure precise piston/cylinder wall tolerances for consistent
ultra-performance on the road and at the track.
Viper
Powertrain
Outstanding Ride, Handling and Capability
A leap forward in handling to the SRT Viper has been made via changes in the basic structure and refinements to suspension geometry. Performance is increased, weight is shed and Viper keeps its near perfect 50/50 weight distribution through its mid-front engine configuration - classic Viper since its inception in 1992.
A new lighter and stiffer space frame structure uses high-strength steel, magnesium, aluminum and carbon fiber to form the basis for all that's good with the 2013 Viper. SRT engineers designed the Viper with 50 percent more torsional rigidity and re-engineered nearly every chassis system to make the new Viper ready for both street and track.
Information courtesy of http://www.drivesrt.com/srt-viper/