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Re: Octane and horsepower question
Posted to R.P.M. Forum on 4/18/2018 1 Reply

There are many variables that determine the octane requirement. Static compression ratio, valve timing, bore/stroke ratio, coolant temp, ignition timing, fuel/air ratio, plug heat range, chamber shape, dome shape, spark-plug location, RPM range, operating cond... Login to read more.

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