Originally Posted by sleepinIS5
The only one of it's kind on an IS.It's a big ass Rotrex blower, the C38.
It'll pop 21 psi if I push the revs... and I have a 5mm smaller pulley sitting in the garage waiting for it's turn.
Of course, I'll have to run the meth in high RPMs if I install the smaller pulley... it will push almost 25 psi according to the calculations. I can get away with it since it's an s/c... not a turbo. 20+ psi on pump gas with a turbo is a big no no.![]()




It's a big ass Rotrex blower, the C38.
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