Below are dyno runs that I did tonight with changes made to fuel pressure between runs. I'm very interested in getting feedback on my air/fuel ratio. The car is a 92 with 6 PSI CTSC, headers, exhaust and Unifilter. Air/fuel was measured from the bung on my Anytime exhaust with the test pipes replacing the cats. I adjusted the fuel pressure with the vacuum line removed. Comptech's recommend range is 58-62 psi. The runs below are at 60, 62, 63 and 64 psi.
These results look better than with the cats, but still seem slightly lean. Is my air/fuel acceptable and what setting works best?
These results look better than with the cats, but still seem slightly lean. Is my air/fuel acceptable and what setting works best?
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