The reshaping of the Ford Mustang's powertrain offerings continues with the debut of a new V-8 engine for the 2011 Mustang GT. It's rated at 412 horsepower at 7,000 rpm and produces a tire-melting 390 pounds-feet of torque at 4,250 rpm. The introduction of this new V-8 helps separate the uplevel GT from the base Mustang, which recently received a new 3.7-liter V-6 rated at 305 hp, just 10 hp shy of the outgoing Mustang GT. Pricing information for the new GT hasn't been released.
The GT's new V-8 also has a displacement of 5.0 liters, a hallowed engine size for Mustang enthusiasts that was enshrined in muscle car history with the application of "5.0" badges on the sides of previous Mustangs. Those badges return for 2011, replacing the "GT" lettering on the front fenders. Expect Mustang fans of a certain age to stop and stare when they see them. Pop the hood and more ogling is likely to ensue, as the new V-8 is a pretty engine.
In developing the all-aluminum 5.0-liter V-8, Ford paid particular attention to airflow into the engine. It features a composite intake manifold, and the alternator has been moved out of the valley between the cylinder banks for enhanced downward air movement. Other performance components include stainless-steel exhaust headers and a forged steel crankshaft. The engine weighs only about 10 pounds more than the outgoing 4.6-liter V-8, according to Mike Harrison, V-8 engine programs manager, but it makes 97 more hp. Ford isn't revealing what kind of zero-to-60-mph performance the new GT will offer, but it expects to have figures closer to when the GT goes on sale in the spring.
The dual overhead cam engine also features variable intake and exhaust valve timing, which Ford calls Twin Independent Variable Camshaft Timing, or Ti-VCT. Ford says the system improves performance and gas mileage.
Despite the big bump in horsepower, Ford estimates that the 2011 Mustang GT's fuel economy will match or exceed the previous GT. The automaker claims models with the six-speed manual transmission will get 16/24 mpg city/highway — same as the 2010 Mustang GT — while those with the six-speed automatic should achieve 17/25 mpg as opposed to 17/23 mpg for the automatic-equipped 2010 Mustang GT. Premium gas is required to achieve the GT's performance figures; you can use regular gas, but then output is closer to 402 hp.
Part of the credit for the fuel economy figures goes to the six-speed transmissions, which replace the five-speed ones in the 2010 Mustang GT. I was a little disappointed to learn that the six-speed manual has "skip-shift," a fuel-saving provision that forces the shifter from first to fourth gear under modest acceleration. It's an annoying feature in a muscle car, though one that gear heads will find a way to disable.
Though the 5.0-liter V-8 is the big news for the Mustang GT, the car receives some other changes for the 2011 model year, including an electric power-steering system, a new rear lower control arm and revised spring rates and dampers. The GT will also offer a Brembo brake package that features large brake discs and calipers lifted from the Shelby GT500, 19-inch alloy wheels and summer tires. On the inside, the Mustang GT gets illuminated vanity mirrors, a universal garage door opener and a message center.
The Mustang GT is one of our favorite muscle cars because of its lively, fun-to-drive nature, and despite a significant horsepower disadvantage it beat a Chevy Camaro SS and a Dodge Challenger R/T in a recent Cars.com comparison test. We can't wait to test the new 5.0-liter V-8.
http://blogs.cars.com/kickingtires/2009/12/2011-ford-mustang-gt-at-2010-detroit-auto-show.html
Home 
