Quote:
Originally Posted by Snakebit
Installed my Webers. Using a Mallory fuel pressure regulator rated 3to 9 lbs. The fuel line is AN6 and the return line is AN4. Fuel pump is a Carter mechanical street pump putting out 6lbs. I can not get the pressure to adjust below 6 lbs. It should be around 3 lbs or less for Webers. Any sugestions other than tearing apart half the car to install an AN6 return line?
|
Two things:
1. I'd run a temporary larger return into a bucket and see if it proves AN4 to be too small. Or you have a restrictive fitting somewhere.
2. Maybe your mechanical pump pulses and the bypass reg is oscillating and unable to control the bypass volume. I run a Mallory gerotor 140G/hr electric pump. Smoother fuel flow from the pump.
