Thread: What turbo for 9:1 compression, GTX28/30?
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Old 07-15-2014, 03:00 PM   #39
Synack
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Quote:
Originally Posted by cdrazic93 View Post
So 12.5:1 CR with 21 psi on 93 pump gas only made 412 whp...yeah you'll need more than 15 psi
Could be a conservative tune. I've seen people with about the same psi making over 500whp.
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