well friday i dynoed my car with the mods found in the subject line. Dave found that my car was detonating on the dyno at 2500rpms. However at 12psi, at every other rpm level i was a seeing 11.4 afr. So add fuel down low and the base maps on the power fc are rich enough to support a mp although my duty cycle is in the 90% range. I guess its time for bigger secondaries.

matt

 

A lot of FD's will knock at low RPMS.. it is helped by adding some fuel since the PFC and stock ECU run really lean down there even while boosting.

I wouldn't be too worried about getting larger injectors. Most FDs have enough fuel with stock fuel systems to keep a healthy a:f at around 15psi of boost.

Wade