Originally posted by Rara: gotapex, what you want is a fuel pressure regulator that maintains ~40psi, but relative to manifold pressure, not atmospheric pressure. You don't want a rising rate FMU that increases fuel pressure more than boost pressure increases.
Most stock fuel pressure regulators of late should have some sort of port on them to reference to the manifold; do you have any photos of your existing FPR?
That's what I was thinking. The Contour has some kind of sensor that shows the difference between fuel pressure and manifold pressure/vacuum. We tried to see if we could get that sensor to do something for us during the EARLY development stages of the SF/ADC turbo kit. Of course, it all depends on how the computer interprets the sensor's output.
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