- Thread starter
- #26
super95awd
20+ Year Contributor
- 823
- 7
- Oct 11, 2002
-
Morgantown,
West Virginia
93 
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11.5:1 seems pretty lean to me for pump? You sure you didn't mean 10.5:1super95awd said:28psi, 20-21 degrees of advance, and 11.5:1 AFR's. Ya, it was running a little bit rich, but we were giving it that extra safety margin

sbiggi said:I'm not saying it cant be done, but my 50trim @ 25 psi with 11.2:1 A/F
I can only get 15 degrees of timing up top on 91 octane at altitude.
I know your log shows no knock, but 22 degrees is alot of timing for pump gas and that much boost. Doesnt seem possible to me. Either way your car is still fast as hell.
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