2008 Ford Shelby GT500 - Performance

Just as the big-block GT500 from 1968 was a step up from the GT350, the 2008 Ford Shelby GT500’s 5.4-liter V-8 is a step up from the 4.6-liter V-8 used in Mustang GT – and even the landmark powertrain used in the last SVT Mustang Cobra. Not coincidentally, the new Shelby GT500 sports the largest-displacement engine installed in a volume version of the Mustang since 1973.

While the 5.4-liter V-8 block, dual overhead cams and four valves per cylinder contribute significantly to horsepower capability of the GT500, adding a supercharger and intercooler are the icing on the cake. In fact, the configuration is similar to the Ford GT supercar, offering the right combination of classic Ford big-block power and modern technology. Using the Ford GT as a blueprint, SVT engineers gave the GT500 more total horsepower than any factory Mustang in the car’s celebrated history: 500!

SUPERCHARGED PERFORMANCE
Using the stout, cast-iron, 5.4-liter Triton V-8 as a starting point, the Shelby GT500 employs a Roots-type 8.5-pounds-per-square-inch Eaton supercharger and water-to-air intercooler to help it produce a broad torque band on its way to making a satisfying 480 foot-pounds.

The unique intake manifold helps to channel the supercharged fuel-air mixture into the cylinders. The special low-profile manifold design also effectively packages the entire induction system under the GT500’s functional air-extractor hood. Fuel comes from a dual-bore electronic throttle body borrowed from Ford’s 6.8-liter V-10 truck engine program.

© Source: svt.ford
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