Re: Stacked Fuel Pumps
My aeromotive FPR is one psi fuel boost per psi signal sent to it. It will also DROP the fuel pressure at the rail one psi per psi, (thats -15 psi drop at -30" of mercuryvacuum ). THe factory crossfire regulator has the same response for both positive and negative 'boost' signal, I have done a bit of testing on these over the last year. Woody