On 6/8/05, Ian Dewhirst <ianddsl@magma.ca> wrote:
Hi David,
Are you using a fuel pressure regulator that regulates fuel pressure relative to manifold pressure? Tou would have a hose from the FPR to the manifold. Your fuel pressure indicated should rise at the same rate that boost pressure rises. If your normal fuel pressure is 40 psi it should be 50 psi at 10 psi boost. You probably know this already, just trying to help.
-- Ian
Ian, yes I have a manifold referenced fuel pressure regulator.
But I like the way you think. :-)
Actually that is something else that has been acting funny, and may be related. My fuel pressure is going up much faster than it should. Idle is 32 PSI, but by about 30" it is showing 99 PSI (max for instrument). I spent several days on that one, and eventually figured out that the sensor is not right - fuel flow (which is dependant on pressure) does not change, and if the pressure really ever reaches 60psi the engine will not run well. Waiting on a new sensor.