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Old 03-21-2012, 10:54 PM   #12
Steve30
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Join Date: May 2008
Location: Scarborough
Posts: 1,714
HPF blamed the tuner while the tuner blamed the engine builder. It looks like there was excessive piston to wall clearance and the rings were gapped too tight. They are also suggesting that the s54 doesn't work well with sleeves which cracked and warped. In my opinion it's both shops fault. The engine was designed to run on aem but the owner decided remove aem and use proefi to tune on e85. He should've just let HPF fix the car which I'm sure Chris would have. By removing aem be pretty much voided warranty...


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