Posts Tagged zr1

2009 Corvette ZR1 – Nuff Said!

Posted by chevyss in News on July 4th, 2009

The all new Corvette ZR1 is the most powerful and most expensive Corvette Chevy has ever produced.

An all-new LS9 motor produces 620 horsepower at 6500 rpm and 595 pound-feet of torque at 4000 rpm. Delivering 100 horsepower per liter, the supercharged 6.2-liter V8 is mated to a close-ratio six-speed manual gearbox with a new high-capacity clutch designed for the increased power. The twin-disc 260mm design provides plenty of clamping power, while maintaining a relatively easy clutch action.

GM has not disclosed specific performance numbers, but the company admits a top speed of 200 mph is very likely. In terms of acceleration, the ZR1 most definitely beats its Z06 counterpart, thanks to a 115-horsepower output advantage. Since the Z06 rockets to 60 mph in just 3.6 seconds, it’s a safe bet the ZR1 will be much closer to the 3.0 mark.

“It all boils down to the power-to-weight ratio and the ZR1’s is exceptional,” said Chevy’s Ed Peper. “Better than the Porsche 911 GT2, the Ferrari 599 and even the Lamborghini LP640. In fact, the ZR1 is expected to be the first production Corvette to achieve a top speed of at least 200 mph.”

GM used the Z06 chassis as a starting point, but further tuned the front and rear independent suspension to work with the ZR1’s ultra-wide tires for increased grip. According to GM, the car achieves 1g cornering grip. Read the rest of this entry »

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