Re: Finned and Edmunds style H/C Heads

Posted by Eric Boyle On 2008/1/1 19:57:56

C/R Vs. Octane: Easy rule of thumb to remember, take your compression ratio, multiply it by 10, and there's the minimum octane you'll need. Not very scientific, but it's accurate enough for 99% of the people here (including me) to go by.