OK I have been runing between 15-16psi on a sp58gt HO but wanted to turn it up some. Tried for 17psi, did not hit fuel cut but afr's was to rich, had taken out up to -18% air flow signal with afc and was still rich in upper rpms.
At this point I didnt want to take out any more signal with afc due to effect on timing. I then toke lexus air flow meter off and backed screw all the way out. Of course I had to add back air flow signal with afc after this to not be lean but after this I hit fuel cut at 14.6psi
So what should I do to be able to run 17+psi and not hit fuel cut? Right now with screw in half way, I have to take out to much signal with afc or thats my understanding anyway, -18%. With air flow screw all the way out, I cant take out enough signal to get past fuel cut with out being to lean. Feel like im stuck between a rock and a hard place.
Does the turbo flow to much to go any higher in boost with lex afm?
(hey will, that vpc would be nice right about now)
At this point I didnt want to take out any more signal with afc due to effect on timing. I then toke lexus air flow meter off and backed screw all the way out. Of course I had to add back air flow signal with afc after this to not be lean but after this I hit fuel cut at 14.6psi
So what should I do to be able to run 17+psi and not hit fuel cut? Right now with screw in half way, I have to take out to much signal with afc or thats my understanding anyway, -18%. With air flow screw all the way out, I cant take out enough signal to get past fuel cut with out being to lean. Feel like im stuck between a rock and a hard place.
Does the turbo flow to much to go any higher in boost with lex afm?
(hey will, that vpc would be nice right about now)