Maximum DCR/SCR for 91 octane??

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Apr 13, 2007 | 07:32 PM

tripleblack98c5

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Maximum DCR/SCR for 91 octane??

I live in Kansas City where we can only get the crappy 91 octane. Using the DCR calculator for my new setup, the DCR will be 8.34 and the SCR will be 11.43. Whats the max CR on 91 without using an octane booster?

Apr 14, 2007 | 03:55 AM

PREDATOR-Z

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From: BFE

8.5
you can run TR6 plugs to help since they are 1 step colder.

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