It looks like the horsepower wars are far from over in the States and may see Chevrolet’s new Camaro ZL1 released with a higher power output than was originally planned. The ZL1 (pictured) won’t reach American car dealerships until early next year, but fresh reports are claiming that power output for the pony car has been bumped up to more than 570 hp (425 kW).
When the ZL1 officially debuted at the Chicago Auto Show, GM said the supercharged 6.2-litre engine would have a max power output of approximately 550 hp (410 kW). That was all good until word came out that the 2013 Ford Mustang Shelby GT500 was expected to use a supercharged 5.8-litre V8 with up to 620 hp (462 kW). With Ford now throwing down the challenge, Chevrolet was left with little choice but to upgrade its hardcore ZL1, just to stay in the fight. Read the rest of this entry »
Ford has just released details of the 2011 Shelby GT500, ahead of its official debut at the Chicago Auto Show.
Looking virtually identical to the 2010 model, the 2011 GT500′s changes are mainly under the bonnet. An aluminum 5.4-lire V8 engine takes pride of place. It’s based on the 5.0-litre V8 found in the 2011 Mustang GT, the new engine has an additional 0.4-liters of displacement, an improved block structure, six-bolt billet main bearing caps, and a supercharger.
Weighing 46kg less than the previous cast-iron engine, the new engine produces 550 hp (410kW) and 510 ft-lb (691 Nm) of torque making for a 10 hp increase over the outgoing model. Ford hasn’t released exact performance specifications yet.
Besides the new engine, Ford has reworked the electric power steering system, added slotted brake dust shields, installed a new pedal box, reduced the ride height, and developed a new exhaust system.
There is also an optional SVT Performance Package that features unique styling accents, stiffer springs, a higher rear axle ratio, and lightweight wheels wrapped in specially-developed Goodyear Eagle F1 SuperCar G: 2 tyres.
Check out a short video of the latest GT500 in action below.
To celebrate the 45th anniversary of the original 1965 Shelby GT350, Shelby American has just unveiled an all new GT350 Mustang. Presented initially in concept form, the new GT350 features a supercharged version of the new 5.0-liter V8 engine in the 2011 Mustang as well as performance upgrades from Ford Racing, Borla, Cragar, Baer and others.
Unlike Shelby’s GT500, the GT350 will be a post-title upgrade available from Shelby in the States. American customers can have their 2011 Mustangs shipped directly to Shelby’s Las Vegas facility to be converted or they can deliver the car themselves. Once received at Shelby, each Mustang is fitted with a Ford Racing supercharger good for approximately 500 horsepower, a Ford Racing suspension system, Baer brakes front and rear, Borla exhaust system and Cragar wheels. For the exterior, Shelby fits a new front fascia, front splitter, functional hood scoop tail light trim, rear deck lid filler panel and a replacement rear fascia with centre exhaust exit. There’s only one colour combination white with Guardsman Blue racing stripes.
What’s the price for the extensive upgrade? Shelby lists the full package at $33,995 USD, which naturally doesn’t include the base car. With the 2011 Mustang GT costing just over $30,000 USD, the total price of the GT350 will actually exceed that of the Shelby GT500.
Check out images of the Shelby GT350 in the gallery below.