Thread: compression ratio for 91 octane
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Old 01-11-2003, 01:58 PM
Robb Robb is offline
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Default compression ratio for 91 octane
What is the highest compression ratio you can run, when you plan to use 91 octane gas?
(no gas addives?)

First, assume aluminum heads.

Second, assume iron heads.


Thanks,
-Robb
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