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I wanna say fully spooled its around 100,000 RPM?? I think i rememebr seeing that somewhere.
 

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I was thinking between 85 and 90 thousand. Not for sure!
 

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i have read around 120,000 at "full" boost (20 psi) that is why balance on these jewels is so imparative
 

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If you can believe some of the fluff, stock application is about 120K RPM. Balacance to hold 300K RPM. Stacking and such should get you near 200K or so.
 

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ahh yeah I should have guessed Fingers would know!

btw fingers what do you think mine was turning at 52 PSI of boost??? :eek:
 

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The VVT mechanicals appear to be rather stout. I am just not happy with it's efficiencies. IMO the back (drive) pressure to boost ration is poor.

Depending on what RPM you are running at, I could see getting 40 PSI boost at around 200K RPM shaft speed. At higher revs, I don't think the VVT breaths well enough to keep up. But I really don't know for sure.

IF the compressor stalls at anywhere near those speeds, parts will fly.
 
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