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Old 04-11-2011 | 03:25 AM
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soarrich
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Default RE: 3W 75

ORIGINAL: rc bugman

The difference between 87 octane and 91 octane is sometime 500 rpms.

Elson
WOW, I didn't know that. Am I hurting mine by running 87 octane? I run 87 octane and 32:1 aircooled in all my engines, would I be better off with the 91 octane in the others as well? 80 zdz, 85DA, DL50, MT 42,50,57,62 a bunch of 26cc's.
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