Looks like Ford is swinging for the fences on this one. Rumored HP rating is suppose to be 670.
The ZL1 doesn't stand a chance.
Just some quick facts about the 2013 GT500:
The 2013 GT500 will still weigh 3850
It does start at 54,995 (Destination included)
It does avoid the gax guzzler tax which is a BIG PLUS. (zl1 doesn't which will boost it's price by over 1k)
It's got a 5.8L alluminum block with a 2.3 TVS supercharger running 15psi stock
Produces 500lb-ft of torque @2k rpm.
Ford has upgraded the clutch to a larger diameter twin-disc unit, the transmission gears feature less helix and the case and bearings have been strengthened too.
It's detuned by quite a bit according to Ford. So with a tune alone it will see a nice gain.
It now has a single piece carbon fiber driveshaft that replaces the 2 piece steel unit found on the 2011-12 which is 15 pounds lighter.
The GT500 was rated from ford at 650hp but thats at 6250rpm. The redline on the new GT500 is actually 7k and at that rpm will produce 670 according to Ford so in come cases you can say it's really 670HP. I think they rated it at the 6250rpm due to the fact that you can only hold redline in each gear at 7k for 8 seconds which is crazy. Who actually stays at redline in any gear for that long.
GT500 doesn't have a speed limiter on it (only the coupe) and has been tested to be the 1st muscle car to reach 200mph. 202 to be exact. Convertible will be limited to 155.
The GT500 doesn't come with an external engine oil cooler, rear differential cooler and transmission cooler standard like the ZL1 does. That is an option called Track Package.
The GT500 also has 33% more downforce at 160mph compared to the 11-12 GT500.
The 2013 GT500 final drive ratio is 3.31 now compared to the 3.55 or the optional 3.73 which were on the 2011-12.
For more technical and good info about the GT500 check this out.
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