High compression motor build questions

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#9 (permalink)

12-03-2010, 09:54 AM

PLDRIVE

CC Member

Join Date: Jan 2008

Location: Nashville, TN

Cobra Make, Engine: Backdraft, SBF 351w (463 CI)

Posts: 272

Not Ranked

Hey Brent isn't that a little to simple of answer? (10.0 to 10.5) Correct me if i am wrong, but what he really needs to know is how much DCR he can get away with on 93 octane. SCR is really ambiguous without more info on the engine build. So what is the safe limit on 93? 8.5 can he do 9.0 (Aluminum heads)?

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