I am not getting the fuel pressure that I want under boost. I saw only 58 at 25Lbs boost with base of 43. It should have been 68, and I am sure it was under 60. I am running the Denso pump and thought it would not be the problem and I wanted to check voltages to the pump. I probed into the pump feed out of the relay of the hotwire relay and saw 13.7 volts. I then adjusted my pressure regulator up manually and was able to take it to 80PSI and I then checked the volatge which was 13.6 volts. I believe the pump is adequately supplied with power and is capable of the pressure.
I recently replaced the fuel filter with a new Wix brand and had no change in ability to maintain safe A/F numbers with my car. I am curious if anyone has had issues like I am facing, and what is thought. Attached is the regulator that I am running.
I have the Racetronix bulkhead replacement harness for the Denso pump and the sock is attached to the pump.
Any suggestions are appreciated,
Mike