Originally Posted by PapeCAT

I've put a 1992 H1C I/C compressor housing and wheel on my original baby h1c turbo and with increased fueling I did notice some better performance... The problem with the h1C 54s when you put fuel to them from non i/c sticks cranked up is you get major major flutter/surging on the low end. (no MWE slot) That said, when it actually does light up on the high end of the RPM, it is much better than that squeeling 50mm wheel.