Originally Posted by http://www.gmperformancedivision.com/breaking_stories.aspx

Chevy Cobalt SS Supercharged Smokes Competition at Toyo Tires Time Attack

BUTTONWILLOW, Calif. – The Chevrolet Cobalt SS Supercharged continued its Time Attack assault at Buttonwillow Raceway Park on Nov. 8, finishing with the fastest time overall (1:51) and first in the Front Engine Front Drive (FF) Unlimited Class at the Toyo Tires Time Attack presented by Super Street and eurotuner magazines. It is the second fastest time ever for a Time Attack run at Buttonwillow and eclipses the previous records set for FF Unlimited (1:57) and All-Wheel-Drive (AWD) Limited (1:54) classes.

Race-prepared by GM Performance Division for FF Unlimited Time Attack competition and driven by current SCCA driving champion John Heinricy, the Front-Wheel-Drive (FWD) Cobalt SS Supercharged bested more than 50 competitors driving such established AWD racecars as the Nissan Skyline and Mitsubishi Lancer Evolution among others, and was one of only three domestic entries along with the Ford Mustang and Dodge Neon.

The Cobalt SS Supercharged has largely maintained its production roots from a parts standpoint, but was further tuned in preparation for the Nov. 8 event, including an added nitrous boost increasing the horsepower to 380 and torque to 387 lb.-ft. among other aerodynamic improvements and chassis tuning.

The premise behind Time Attack is to take a street vehicle and – using DOT approved tires – turn in the fastest lap on a racetrack for the vehicle class. The vehicle must be from a model originally produced for legal street use and it must have a silhouette largely faithful to the original.

The Cobalt SS Supercharged has strong performance credentials in factory trim. Powered by a supercharged and intercooled 205-horsepower, 2.0-liter Ecotec DOHC four-cylinder engine and equipped with a finely-tuned suspension developed on Germany’s famed Nurburgring race track, the production Cobalt SS Supercharged has brought more heat to the already red-hot sport compact segment, and has been quite a dealer draw since its introduction in late 2004.

GM Performance Division in collaboration with Chevrolet, GM Powertrain, GM Performance Parts and GM Design created the Cobalt SS for Time Attack competition to demonstrate the ultimate capabilities of the Ecotec engine. Time Attack challenges involve multiple runs, so the engine must be powerful and durable.

The engine features an Eaton M-62 Gen 5 Hybrid supercharger, and delivers 283 horsepower at 6840 rpm and 243 lb.-ft. of torque at 4200 rpm without the nitrous. It is also Stage 2+ equipped, using a smaller pulley than the Stage 2 kit available soon through GM Performance Parts to achieve even greater torque.

Some of the production Cobalt elements were replaced with carbon fiber counterparts, including the hood, doors, roof, decklid, rear wing, side rocker extensions and Sparco car seat. The vehicle’s glass has also been replaced with Lexan, and interior trim has been kept to a minimum. The end result is a vehicle weighing a mere 2,350 pounds.

Powell Motorsport, Lotus Engineering and Martin Technologies provided GM Performance Division with vehicle preparation, logistical support and engineering collaboration for the Toyo Tires Time Attack event.