Anyone fitted an adjustable fuel pressure regulator to a v12 HE, If so any pictures of the plumbing
I remember stumbling on a post of just that long ago in the archives. I’m curious too, although my opinion is all it will do is cause the ECU to correct a bit leaner (assuming you have O2 sensors like me). If not, then it may help, or just lower mpg.
One of our club members raced a AJ16 engined car and he had an adjustable FPR on the rail.
They set it at the factory pressure and dynoed the car, he then set the pressure a few pounds higher and the HP went up by a noticeable amount, I believe it was to do with the better atomisation of the fuel from the injectors.