My "friends" has no pre-cats or cat.
It was dynoed on a dynojet and a/f ratio probe was inserted into the tail pipe.
I hooked up the obd-ii datalogger to my laptop.
My results are .88v is 13.9 a/f and .86v is 14.3 a/f and .93v is 12.1 a/f.
So interpolated...
.87v = 14.3
.88v = 13.9
.89v = 13.5
.90v = 13.1 +-.1
.91v = 12.7 +-.1
.92v = 12.5 +-.2
.93v = 12.1 +-.3
S-AFC and redyno soon.
