Quote:
Originally Posted by driyac
I just want to know how those 4 cyl hold up to that much boost???? he has to be running 25lbs+ of boost. Like how is that possible ??????
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A stock engine/head can hold around 28psi on pump and around 32-33psi on meth/race gas/e85. They're just built to handle it. It's extremely different from that much boost on a v8. Little engine big boost and vice versa.