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2007 Ford Shelby GT500 Adds 25 Ponies
Posted May 3, 2006 12:59 PM by Tim Beggs.
What can be done to make the most powerful production Ford Mustang better? Lower the price? Give one away? Keep dreaming… How about add more power? That will have to do. Ford’s “poster child” pony car is now officially rated at 500 hp, up from the previous 475 hp estimates. The 32-valve 5.4 liter supercharged V8 is a purebred result in the continued modular engine development by Ford. A roots blower provides the 9 pounds/square inch of pressure making the wonderful power figures possible.
“With 500 hp and the Shelby name, this car is an instant legend," said Hau Thai-Tang, director, Advanced Product Creation & SVT programs. "This is the most powerful, most capable Mustang ever." No question of the power remains anymore as the rating was obtained by using the standards of the Society of Automotive Engineers (SAE) with testing witnessed by an impartial third party.
Official Press Release from Ford
Tech Specs
| Engine Type | V-8 |
| Manufacturing location | Romeo, Michigan |
| Configuration | Iron Block and Aluminum Heads |
| Intake manifold | Cast-aluminum with Roots-type supercharger and air-to-water intercooler |
| Exhaust manifold | Cast iron |
| Crankshaft | Forged steel |
| Throttle Body | Dual 60 mm, electronic |
| Valvetrain | DOHC, 4 valves per cylinder |
| Valve diameter | Intake: 37.0 mm; Exhaust: 32.0 mm |
| Pistons | Forged aluminum |
| Connecting Rods | Cracked forged steel I-beams |
| Ignition | Coil-on-plug |
| Bore x stroke | 3.552 x 4.165 in. / 90.2 x 105.8 mm |
| Displacement | 330 cu. in. / 5,409 cc |
| Horsepower | 500 hp @ 6,000 rpm (SAE Certified) |
| Torque | 480 lb.-ft. @ 4,500 rpm (SAE Certified) |
| Compression ratio | 8.4:1 |
| Redline | 6,250 rpm |
| Idle Speed in Neutral | 750 rpm |
| Engine control system | Spanish Oak PCM |
| Required fuel | Premium |
| Fuel Injection | Electronic returnless sequential |
| Oil capacity / type | 6.5 quarts / Motorcraft 5W-50 Full Synthetic Motor Oil |
| Coolant capacity | 21 quarts |
| Peak Boost | 9 psi |
