Shelby GT500 SVT Performance Package Nets Dramatic 3.0 Second Lap Time Improvement
 

Having just announced the much-improved 2011 Shelby GT500 model, Ford is also debuting a new SVT Performance Pack for the car, which it says will deliver a 3.0-second per lap improvement on a 2.3 mile road course.

So how is this possible? Well, along with the GT500's 102-lb lighter engine, the Shelby team worked with Goodyear on a set of Eagle F1 SuperCar G2 tires, with a staggered 19-inch front and 20-inch rear fitment. Additional grip is also due to wider 265/40/19 tires up front. Ford claims the tires help deliver a 1.0 later g rating and a 7 percent improvement in braking.

"These tires are as close as you can get to a race car tire," said Eric Zinkosky, SVT technical specialist. "We have a tire that's way more capable, with better grip, is firmer and more race-oriented. From there, we tuned the chassis around it. The tires told us what we had to do."

Compared to the stock rollers, the new SVT light weight forged aluminum wheels weigh 4.7 lbs less up front and 2.8 lbs less in the rear.

Additional upgrades include stiffer springs that are 11 millimeters lower up front and 8 millimeters lower in the rear, while a longer 3.73 rear axle ratio is better suited to the car's power on the track. Some aerodynamic improvements include a new rear spoiler Gurney Flap as well as a modified front end that delivers 25 percent better front downforce.

Pricing for the 2011 Shelby GT500 and the SVT Performance Package have not yet been released. Ford will officially debut the car and the package this Wednesday, February 10th at the Chicago Auto Show.

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Re: Shelby GT500 SVT Performance Package Nets Dramatic 3.0 Second Lap Time Improvemen
 

I'd like to hear the real difference in engine weight?

I keep hearing it's actually closer to 80 lbs difference.

Wonder where the 102 lb number came from?
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