Ap question regarding monitoring

AZMS3

Member
Recently picked up an AP and been monitoring. Looking to see what to look for regarding what is good or bad numbers(to look out for) for the following A/F Ratio, Boost, Knock, DI Fuel Pressure. And any others that you may think are important to monitor on the AP.

Thanks
 
A/F will vary depending on mods. Stock expect it to drop into the 10:1 range at WOT. This is safe but, slow.

DI fp should not drop below 1668 psi (11.5 MegaPascal) at 60% or greater load. Below this, the pump is dead and you need internals.

Knock retard should be 0. Run high octane to get this if you're experiencing KR.

Boost varies depending on mods. Stock is 15.6. Expect a boost spike to maybe 17 on a stocker with a general drift down to 15.6. This is in the upper gears only. Boost is limited in 1 and 2 to help with traction and save the driveline.
 
A/F will vary depending on mods. Stock expect it to drop into the 10:1 range at WOT. This is safe but, slow.

DI fp should not drop below 1668 psi (11.5 MegaPascal) at 60% or greater load. Below this, the pump is dead and you need internals.

Knock retard should be 0. Run high octane to get this if you're experiencing KR.

Boost varies depending on mods. Stock is 15.6. Expect a boost spike to maybe 17 on a stocker with a general drift down to 15.6. This is in the upper gears only. Boost is limited in 1 and 2 to help with traction and save the driveline.


Ok thanks, I have for mods just the cobb intake. My A/F have been looking good so far, but I did get a knock retard of 3 while going WOT yesterday. I think that may due to using 91 circle k gas. The boost usually around 15.6-16.5. I did see boost hit 20psi while going WOT in 5th yesterday. My DI pressure is good,stays around 1600-1700 when going WOT.
 

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