Occupy Horsepower seems to be the sentiment at Ford these days as the Blue Oval seeks elite output for everyman. Earlier this year, we told you the next GT500 was going to produce north of 600 hp, but even we weren�t prepared for the 650 hp and 600 lb-ft of torque announced as the car debuts at the Los Angeles auto show. Is that �God Bless America� we hear?
Engine Overhaul
While punching out the 5.4-liter aluminum-block V-8 out to 5.8 liters, the GT500�s powertrain crew also updated the heads for better cooling, changed the camshaft profiles, added piston squirters and higher-flow fuel injectors, swapped the old supercharger for a larger and more efficient TVS unit that ups boost from 9 to 15 psi, and fitted a larger intercooler. The result is an extra 100 hp and 90 lb-ft compared to the 2012 model. The cooling system was upgraded to dissipate the excess heat, and a carbon-fiber driveshaft, upgraded clutch, strengthened transmission (with revised gearing), and sturdier rear axle were deemed necessary to cope with the extra grunt. To help the driver cope, the GT500 is equipped with an adjustable launch-control function.
Despite the GT500�s barbaric output, Ford has come a long way from the muscle cars of yesteryear, wherein engineers fitted a bigger, more powerful engine and called it good. A new front fascia is home to the same revised headlights as the other �13 Mustangs, and there�s a new front splitter. That last bit is important, as Ford says the new GT500�s top speed is in excess of 200 (!) mph. Chew on that, Camaro ZL1. Heck; chew on that, Corvette Z06, with your piddling 198 mph. Overall, Ford says the 2013 GT500 has 33 percent more downforce at 160 mph than its predecessor. With a factory Mustang joining the 200-mph club, drivers will appreciate standard Brembo brakes with six-piston calipers in the front and larger rotors and new pads at all four corners.
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With 650 hp, no bend in the road will be far away. To address those curves, the new GT500 gets optional electronically-adjustable Bilstein shocks. Part of the Performance package�which also includes a Torsen limited-slip diff and Recaro seats�the Bilstein dampers offer drivers a choice of Normal and Sport modes. If you intend to unleash your Shelby on a closed course, you might want to opt for the Track package, too. It adds supplementary coolers for the engine oil, differential, and transmission.
The GT500 receives the same exterior revisions as the rest of the 2013 Mustangs and the Boss 302. Those updates include the aforementioned headlights, new LED taillights set in a blacked-out tail panel, and body-colored rocker extensions. A quad-tipped dual-exhaust system and two new forged-wheel designs are unique to the Shelby GT500.
While we have no official word yet on pricing, we�re expecting a hearty bump from the GT500�s current base of $49,605. Considering how much more grunt it has than the 580-hp Chevrolet Camaro ZL1�not to mention its 12-horse edge on the $113K Corvette ZR1�even $60,000 for the new GT500 would be one helluva bargain.
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