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Old 05-23-2013, 06:37 AM   #18
newmoon

 
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Drives: 2012 5.0 Mustang, Brembo Track Pack
Join Date: Jan 2011
Location: NC
Posts: 1,681
Quote:
Originally Posted by ZL600 FK View Post
I agree the GT500 stock is not putting down 620 rwhp, it is make 662 hp at the block which compares to the ZL1's 580 hp at the block. 620 rwhp would be close to 745 hp at the block - do not think so at all!
620 was the highest I have seen, actually it was 619, there are however numerous cars that are pulling 600-610s rwhp. It really is amazing and I suspect Ford under-rated this car a bit. These cars are also trapping as high as 127 mph stock in cool weather, which backs up the dyno numbers. I think it's safe to assume that the 500 is producing every bit of it's advertised hp and then some.
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