Quote:
Originally Posted by knucklesplitter
Not true. I think many if not most or all stage 2 tunes would violate this condition (and maybe even the stock STI tune). The thottle position has nothing to do with it either. It is common to run leaner than 12:1 or even 13:1 at 5psi despite 91 octane. I run stoich (14.7:1) to about 3psi. It helps spool.
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Ya I just threw some numbers up.