Ok so for a while now i have been running my fuel pressure regulator with the vacuum source to it so that my fuel pressure would rise with boost and i wouldnt have any problem not getting enough fuel, but i decided today to remove the line from the regulator and retune the car with a static fuel pressure.
I made a few adjustments between boost and fuel pressure and eventually ended up settling with 49psi static fuel pressure on 20 pounds of boost. with a conservative AFR on this new fuel pressure set up my car felt like it was pulling harder on 20psi than it had been on 22/23psi. i was watching the air:fuels and my friend was watching the ignition advance by RPM on the scan gauge. later after i had my tune set and i was happy with everything, i changed my display back to knock retard and ignition advance on the scan gauge and on the way to the pizza place we were all meeting up at he said he noticed the gauge displayed a few different readings on knock retard. so i made another pull and noticed in the midrange it was no higher than 7 and when it got to the top end the highest it showed was 3. i made no more pulls after that because im not so sure how bad that is...i need some input from people who know what they are talking about on how to eliminate or atleast lower the knock retard into a safe zone, and what exactly a safe zone is.
in short, im just trying to understand why with a conservative air fuel ratio and literally NO dip in ignition advance, its reading knock retard, and how to solve it. all positive input welcome, please no ignorant kids posting "wow thats bad" and not saying anything else..
edit for possibly some useful info for this:
turbonetics .50 trim set at 20psi
pwerks fuel return line
aeromotive FPR set at 49psi static pressure
rc 750s
safc-II pulling little to no fuel out at the top end
AFR's:
highest - 11.4
lowest - 10.9
fuel set up changed, knock retard question
Linear Mode
