Join Date: Mar 2007
Location: N NW of Atlantis (Reno)
2011 Ford Mustang Shelby GT500 – Road Test: C&D, R&T...
...When the 2011 Shelby GT500 was revealed at the Chicago auto show earlier this year, Jamal Hameedi, SVT chief nameplate engineer, and Hermann Salenbauch, director of advanced product creation and global performance vehicles, took us over to the car on the show floor and proudly lifted the hood. There, nestled in the engine bay, was an aluminum-block 5.4-liter V-8, topped by a Roots-type blower.
The engine is essentially a wet-sump evolution of the Ford GT’s (which was itself a dry-sump evolution of the SVT Mustang’s). The aluminum block is different, however: It features six-bolt, billet main bearing caps and Ford’s first use of “plasma transferred wire arc” liner coatings on the cylinder bores, which adds enough strength to get around using cast-iron liners and sounds awfully similar to what Mercedes-Benz started doing five years ago on its 6.2-liter AMG V-8. The GT500’s engine retains the same 90.2-millimeter bore and 105.8-mm stroke of the iron-block engine, as well as the 8.4:1 compression ratio. A larger, two-row intercooler is said to have 40 percent more cooling capacity than the single-row unit it replaces.
The new engine makes 550 horsepower at 6200 rpm, an improvement of 10 horses over the 2010 GT500. Peak torque remains unchanged at 510 pound-feet, but it’s delivered 250 revs lower, at 4250 rpm. Most important, the new engine shaves 102 pounds off the iron-block V-8’s weight...
...Thanks to the new engine, the electric power steering, and the lighter wheels, the car we drove tipped our scales at 3751 pounds, 146 less than the last GT500 we tested. More important, the amount of weight over the front wheels has gone from 57.4 percent to 55.7 percent. This less porky GT500 also gets better EPA gas mileage—up from 14 mpg city and 22 mpg highway to 15 and 23—making it the first GT500 to avoid a gas-guzzler penalty.
The combination of less weight, more power, better tires, and a revised suspension turns the Shelby into the car it always should have been. At the test track, we recorded 0 to 60 mph in 4.1 seconds, 0 to 100 in 9.1 seconds, and the standing quarter-mile in 12.4 seconds at 117 mph. Our last 2010 test car ran those sprints in 4.5, 9.6, and 12.7 seconds, respectively...
- 2010 Ford Mustang Shelby GT500 – Short Take Road Test
- 2010 Ford Mustang Shelby GT500 Convertible – Short Take Road Test
- 2011 Ford Mustang Shelby GT500 – Official Photos and Info