djtalon

Above 4500 with 15 psi of boost what should my AFR be at. Today i noticed they are in the low 10's like 10.3 - 10.5. Seems like the car felt a little less powerful but that could just be my imagination. Only real difference between when i ran it a couple of weeks ago when it was in the 11's is that the outside temps are cooler.

i am running a link AFM MAP

fast951

Any boost over 7psi, regardless of RPM, you should target 11.5-11.8:1 AFRs.

djtalon

i am sure that these afr issues i am having will probably go away when i switch to a known reputable fuel management system. Seems that the AFM link is a bit finiky.

racerxrick

running rich so yeah it'll feel more sluggish. better than the alternative.

djtalon

i have an adjustable fuel pressure regulator. if i reduce the fuel pressure from 3 bar to less will that reduce it across the board? I have a link system so i can reduce fuel in the high rpms also.