2013 Dodge Viper SRT10
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| It has retained its all aluminum 8.4-liter V-10, but with a stiffer block casting, lighter valvetrain, forged pistons and sodium filled exhaust valves. Its output is now a Corvette-ZR1-beating 640 horsepower and 600 lb.-ft. of torque. It's also 25 lb. lighter thanks mostly to an aluminum flywheel and composite intake. That composite intake flows better and rejects heat easier. For added refinement the engine mounts are now hydraulic units and the exhaust is better insulated from the passenger compartment. The engine's unique pushrod cam-in-cam design for variable-valve timing has been retained, as has the 6200 redline with a 6400-rpm limiter.Although the plant that built the Viper was emptied, the newest Viper will retain much of the past car's structural design. That means the use of a steel space frame will continue. However this iteration is 40 lb. lighter, helping to bring the entire car down to roughly a 3300-lb. curb weight. That's about 100 lb. lighter than before. And, more important, the chassis is 50 percent stiffer while retaining a 49/51 weight split front to rea |
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