Gibbo

I remember him linking me to some Mustang 'boss' which has just over 1000bhp!!!! After being in his Mustang it's hard to imagine something with double the power! lol
 
Hi there

Yep it looks great, yep it goes well, I'd imagine 60-100mph acceleration to be sub 3s which is like Enzo territory. Off the mark it will be a handful and 2nd gear traction on anything but a hot sunny day will be an issue.

However I think the GT500's are still using the older cast iron engines, which is great for tunability as your thinking 800BHP is a lot, but that 5.4l cast iron block can handle circa 900BHP on stock internals and some fettling see's them over 1000BHP quite easily and such tuned GT500's are hitting sub 8s 1/4 miles at terminals around 140-150MPH so yes they are mental fast, quicker than supercar fast.

However I have that engine as it just makes the handling nose heavy and the car will just push wide.


The new 2011 5.0l V8 engine is 10x better, it weighs less, it returns better MPG and it revs harder. Plus it is early days but even N/A its hitting 500BHP quite easily and supercharger kits to 650BHP are already surfacing.

So drop the new 5.0l in a Shelby instead of the 5.4l and wow what a car, if Shelby have done this with this model then awsome but nowhere in the article does it state which engine is used, so I suspect its the old 5.4l model.

With the chassis setup I had on my Saleen I reckon it could handle approx 700-750BHP to the rear wheels, anything beyond that and your either gonna need track/sticky rubber or just forget going WOT in 1st or 2nd gear completely. Mine had near 600BHP and as people will attest it could lay its power down, even mid-corner, live rear axle yes but it could handle the power and it handled well, its weak points for the live axle is dealing with extreme cambers and bumps. The other Mustangs weakness was its ability to change direction fast, but its rumours the new 2011 cars have gone a long way to fixing this. :)
 
Gibbo said:
However I think the GT500's are still using the older cast iron engines, which is great for tunability as your thinking 800BHP is a lot, but that 5.4l cast iron block can handle circa 900BHP on stock internals and some fettling see's them over 1000BHP quite easily and such tuned GT500's are hitting sub 8s 1/4 miles at terminals around 140-150MPH so yes they are mental fast, quicker than supercar fast.

However I have that engine as it just makes the handling nose heavy and the car will just push wide.
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The 2011 GT500 has gone to an aluminium block now. Same capacity and design, just re-cast in aluminium with a few more bits of trickery as well:

For 2011, the Shelby GT500 received significant performance enhancements and other upgrades. Arguably the most important of the GT500's upgrades is a new aluminum engine block for the car's supercharged 5.4 L DOHC V8, replacing the cast-iron block used previously. The block's cylinder bores are coated with an iron and iron oxide composite that is applied with Plasma Transferred Wire Arc (PTWA) technology, which was developed jointly by Ford and Flamespray Industries. The developers of PTWA received the IPO 2009 National Inventor of the Year award. The coating allows for the replacement of traditional cast-iron cylinder liners and marks Ford's first use of this process. Between this and the use of lighter-weight aluminum for the engine block, the new block is 102 lbs lighter than the previous cast-iron version, contributing to a reduction in the overall weight of the GT500 compared to the 2010 model. Thanks to the new liner coating, which has friction-reducing characteristics, and a revised exhaust, horsepower production from the 5.4 L V8 has increased slightly for a total of 550 bhp (410 kW)@6200rpm. The combination of the lighter engine, EPAS, and aerodynamic enhancements result in an improvement in fuel efficiency for the 2011 GT500 relative to the 2010 model that eliminates the car's gas guzzler tax.
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