<http://schema.org/articleBody>
"The Dodge Viper returned from its vacation just in time for the Detroit show. It&amp;#039;s now sporting more bite beneath its new hood, hitting the 600-bhp mark thanks to major modifications of its ohv V-10.   Set to be launched later this year as a 2008 model (there is no 2007 Viper), the 2-seater announces its revamped powerplant with larger louvers positioned farther forward on the hood. The boost in output comes from slightly more displacement, higher compression, variable valve timing and freer-breathing intake and exhaust. Capacity is up marginally from 8.3 to 8.4 liters due to a slightly larger bore. Engineers worked most of their magic with a new cam-within-a-cam design giving variable valve timing on both intake and exhaust, while the valves themselves are larger in diameter with machined hollow stems that allow for higher-speed operation. The compression ratio has been boosted from 9.6:1 to 10.2:1. Much attention was paid to the dual throttle body intake plenum and exhaust headers to improve flow, and the crossover connecting the side pipes has been eliminated to further reduce backpressure.   Output is rated at 600 bhp and 560 lb.-ft. of torque. To handle this additional muscle, Dodge has beefed up the drivetrain, replacing the previous single-disc clutch with a smaller, twin-disc unit said to reduce rotating inertia by 18 percent. The twin-disc clutch also reduces pedal effort and improves the feel of clutch engagement. The 6-speed transmission has been upgraded to Tremec&amp;#039;s new TR6060 gearbox, which supplants the previous T56 manual. The new box has wider gears for higher torque capacity and a new synchronizer package with triple cones on 1st and 2nd gears and double cones 3rd through 6th. The T56 had double cones on the first two gears and single cones on the top four gears. Finally, the Dana rear axle is fitted with a GKN speed-sensing viscous-coupled limited slip, which promises a quick response to changes in traction. Like the 2006 model it replaces, the brawnier Viper will again be offered in both coupe and convertible styles when it goes on sale midyear. "^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.roadandtrack.com/car-shows/detroit-auto-show/news/a12804/2008-dodge-viper-srt10/>