Author Topic: Cr/fuel Octane  (Read 1166 times)

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Offline 68IIIbuggy

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Cr/fuel Octane
« on: July 23, 2005, 04:27:13 PM »
My question is twofold:
1: How high a compression ratio can you use on a street car using 87 octane fuel?

2: If you were to assemble a 1641 using stock 1600 heads and no barrel spacers, what compression ratio would you end up with?

Offline Bruce

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Cr/fuel Octane
« Reply #1 on: July 23, 2005, 10:21:50 PM »
The biggest two factors for #1 are cam and chamber type.  You need to describe both.

#2, what stock heads?  113?  311? 040? 043?  All have different chamber sizes.  What is your deckheight?  If the case was machined, your deck height has to be measured.