View Full Version : Need some opiniions on air/fuel readings

08-10-2010, 10:30 AM
For my 1st, 2nd 3rd gear WOT my mixture is between 11.6-11.9 all the way up to redline but my 4th gear pull goes straight to 10. My car will even bog because it's running so rich. I'm pushing about 18psi on my 46 trim. I'm afraid if i try to make adjustments i will lean out my lower gears to even out my forth gear pull. I was thinking maybe it my crappy MBC that's making the boost creep up in higher gears or something. Any suggestions?

08-10-2010, 10:50 AM
You need to have the tuner adjust enrichment in the higher gears. The 630cc injectors are way too big for that turbo, so that's part of the problem. You would be better off with some 550s and a 4 bar if you're running low boost like that. Also, the meth doesn't help your afr.

08-10-2010, 05:05 PM
Ok i'll check all that out. What do you think about the 11.9 max reading? I'm trying to keep it under 12 because from what i understand anything over 12 can get iffy.