Thread: Stillen Air to Air setup
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Old 07-31-2015, 11:28 AM   #112 (permalink)
JWillis72
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Join Date: Sep 2013
Location: Fort Myers FL
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Drives: 2009 370Z yellow 7AT
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Originally Posted by TopgunZ View Post
I wanted to go to the smaller SC pulley from Vortech but their calculator is telling me that with my pulley setup I will already be at 53K. I measured my pulleys and have the following.

Crank 5.75
Serp 2.90 - Black 9psi stillen pulley
Jackshaft - 3.2
SC - 3.2
SCI impellar upgrade

This will supposedly make 12psi at sea level. If all this is correct, then how can a guy make 16 psi if the supercharger is at max revs?
928 motorsports sells a rebuild kit that lets you spin it to 60k.
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