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Old 04-26-2010, 02:53 PM   #10 (permalink)
texanidiot25
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Quote:
Originally Posted by Christ View Post
It's a huge issue over whether high compression engines actually need higher octane fuel... if you were just a backyard engine builder, it'll be somewhat difficult for you (as many others - no offense intended) to understand that high initial (static) compression really doesn't mean too much when the engine is running - dynamic compression and mixture velocity/consistency is what's important.

If you're interested in such things, The Old One - Energy Dynamics has an interesting archive of articles and information from Larry Widmer, who's done alot of research and development on the subject. He runs (daily driver) a supercharged 12:1CR (may be slightly higher) B-series Civic on pump gas.
None taken, I love learning. I've always seen things from a performance view, which was when it came to high compression motors, run high octane and advance until it knocks, and go from there. (basically).

Thanks for the link, I'll check it out
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