Turbo high cr

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Oct 23, 2025 | 07:44 PM

Pablomg

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Turbo high cr

I have h22 13cr 91 oct
+8000rpm 17°btdc
in theory fast/reliable 1psi 1 degree
in theory i can be 8psi with 9°btdc 13cr 91 oct?
max manual boost 18psi, i can 1°atdc?

Nov 13, 2025 | 08:29 AM

K7-1Ktrevor

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Joined: Mar 2008

Posts: 5,474

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From: Salem, Or

Re: Turbo high cr

No on 91 octane that engine setup will be extremely knock limited. Run a good fuel or a lower compression.

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