Without a doubt, the new 2013 SRT Viper promises to tame the track any day, any time of the week. But for the high-profile American Le Mans Series, SRT Motorsports has something special in store. The racing division has recently wrapped up the first on-track test of the new 2013 SRT Viper GTS-R with team driver Marc Goossens at Carolina Motorsports Park in Kershaw, S.C. The SRT Viper GTS-R is expected to compete in the American Le Mans Series GT class later this year.
Beth Paretta (Director of Marketing and Operations, SRT Brand and Motorsports): “The first on-track test of the new SRT Viper GTS-R went extremely well. Even after all the hard work by the team, it’s still incredible how fast everything has come together in the development process. We were even able to expand the scope of the test beyond what would be normal for a first on-track session. We’re elated with how the SRT Viper GTS-R responded and look forward to returning to the track soon as we prepare to compete in the American Le Mans Series GT class later this year.”
The SRT Viper GTS-R doesn’t stray too far from the road model, as evident from the easily recognizable looks. The fifth generation of the iconic two-seat, American-built supercar has been deliberately evolved to incorporate superior craftsmanship, a host of new technologies and ergonomic improvements while respecting its visceral legacy of outright performance.
At the heart and soul of the 2013 SRT Viper is the venerable, hand-assembled 8.4-liter all-aluminum, V-10 overhead-valve engine.
Improvements for 2013 include a new, ultra-high flow and lightweight composite intake manifold, high-strength forged pistons, sodium-filled exhaust valves, new catalysts to reduce back pressure and an aluminum flywheel that reduces reciprocating losses. More than 25 pounds has been shaved from the fully dressed engine.
Preliminary performance ratings for the SRT Viper are 640 horsepower and 813 Nm of torque – the most torque of any naturally aspirated engine in the world. All of that velocity will be managed through a Tremec TR6060 six-speed manual transmission with a short throw shifter, closer gear ratios and a final drive ratio that has been shortened to 3.55 from 3.07. Top speed will be achieved in 6th gear at the 6,200 RPM redline.
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