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View Full Version : Safe Boost Vs. Octane



GEOO
12-22-2001, 06:49 PM
With a 10:1 engine SBC, Alum. Heads, Fuel injected, what is a safe boost with 92-93 octane (intercooled Procharger System), how about 104 octane. How much would the timing need to be retarded?

superdave013
12-22-2001, 07:07 PM
With that much compression I would run it on alki myself. To much for gas. In a few posts down HeavyHitter talks about retarding the timming. You should read it. I, myself like his thinking.

Whipple Charged
01-10-2002, 09:10 PM
Geoo,
I would not exceed 3-4lbs. on 91 octane, no more than 28 total timing. That's very high compression and it's hard to shove anymore air in there. With 104, you can probably get away with 6-7lbs. Just my thoughts.
Thanks,
Dustin

GEOO
01-11-2002, 03:50 PM
Thanks Dustin, GEOO