How do you adjust a Holley electric fuel pump?
Loosening the regulator locknut and turning the adjustment screw clockwise increases the pressure. Decrease pressure by turning the adjustment screw counter-clockwise. WARNING! TURNING THE ADJUSTMENT SCREW ALL THE WAY IN WILL RESULT IN EXCESSIVE FUEL PRESSURE AND CAUSE THE CARBURETOR TO FLOOD.
Does a Holley blue pump need a return line?
The “blue” pump, P/N12-802-1, is rated at 110 GPH and it is designed for street/strip applications. Pressure is pre-set at 14 PSI and a regulator is included as part of the package. Fuel pressure is pre-set at 15 PSI and both a pressure regulator and 3/8″ return line to the tank are required.
Do you need a relay for electric fuel pump?
A relay would be needed if you want to turn it off with low oil preasure or something like that. Double check with AAW and see if there pump circuit is battery power or ignition power. If it is battery power, you will still need a relay to turn on with the ignition.
Does an electric fuel pump need a relay?
What color is the power wire on a fuel pump?
On the other hand the power to the pump is almost always gray, grey, a shade of very light black whatever you want to call it. The gas gauge is almost always purple, lavender, lilac, mauve, periwinkle, plum, violet, or some such name.
Does a Holley fuel pump need a return line?
Fuel pressure is pre-set at 15 PSI and both a pressure regulator and 3/8″ return line to the tank are required. The high volume output of these pumps make them the natural choice for racers who will settle for nothing but the best.
How much horsepower will a Holley blue pump support?
550 hp
They are rotor/vane-style pumps designed to flow high volumes of fuel at low pressures, perfect for low- to high-horsepower carbureted applications. The Holley Red pump flows 97 gph and supports 425 hp, while the Blue pump flows 110 gph and supports 550 hp.