Stillen air to air conversion fabrication thread

[EVOHUNTER]

Originally Posted by JWillis72

Has anyone calculated the impellers rpm? I was reading on 928 motorsport today and it said the vortech is only made to spin 50,000 rpm but they can up that to 60, 000 but I have no idea what it starts at in the Stillen kit.


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ive calculated that with my 2.75" on serp side, 2.75" on jack shaft and 2.70" on blower - 52344 RPM

[JWillis72]

Originally Posted by EVOHUNTER

ive calculated that with my 2.75" on serp side, 2.75" on jack shaft and 2.70" on blower - 52344 RPM

Are you going to do the higher rpm kit or leave it as is?

[EVOHUNTER]

Originally Posted by JWillis72

Are you going to do the higher rpm kit or leave it as is?

Ill leave it as is. Vortech says it can spin to 52000Rpm.

Ill wait and see what kind of boost I get with this setup and go from there.

[TopgunZ]

Originally Posted by EVOHUNTER

Ill leave it as is. Vortech says it can spin to 52000Rpm.

Ill wait and see what kind of boost I get with this setup and go from there.

I am confused. I just spoke with them and they said it will max at 53K and they helped me through the calculator on their site. Even though it says teeth count, you can use diameter. Here is a snapshot of my setup. I'm already over the recommended with some larger pulleys.