Quote:
Originally Posted by Crowley
I ran 16 lbs of boost in my 04 cobra and it was very reliable (daily driver) so I think with the GT500 that isn't out of the question at all. Remember .. the GT500 has a forged internals from the factory (it is already built for boost and is lower compression).
Crowley
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+1
I know the stock 4.6 Cobra's can run ~24#'s or so max before the heads start to have problems with them lifting off, but with pump gas should be good to ~18#'s. now that their getting a little older, here's a few that have passed the 150,000 mile range with 450-500 rwhp and even a couple in the 200,000 mile range with over 400-450 rwhp.
I'm sure the GT500 is just as reliable, and probably moreso.