Under High fuel demand or when G-force loads are high, the bypass loads the pump and the pump steps up to give the fuel line those pressure increases needed to keep your carb or nitrous fuel pressure rock solid. BUT, when G-forces or fuel demand is low... like when you slow back down or are driving around, the return style system takes the load off the pump. This layout reduces wear, eliminates heating/boiling of the fuel, simplifies plumbing and reduces battery draw.
Part # 8804-C If you are looking for a fuel pump that will feed big power AND is easy to plumb. Our #8804 fuel pump and regulator combo does the trick. This is a carefully selected combination of parts designed to eliminate the high side pressure design fuel systems. These antiquated layouts simply wear the pump out, heat the fuel up and drain your battery. Our #8804 Fuel pump and regulator combo operates on a return setup. This greatly increases pump life and greatly improves fuel pressure accuracy.
Part # 8805 If you are looking for the most consistent fuel pressure with minimal pressure drop under a load, you need to use a Bypass regulator.Our Part # 8805 Billet bypass regulator is the best way to go to give you rock solid fuel pressure.The regulator is a simple hook up and go setup that can be plumbed in many different ways.Includes 3 -8AN fittings as shown.Check out our 440 Fuel pump page (in our Racing Parts section) for various plumbing diagrams for the 8805 regulator.
Fuel is what makes the power in a nitrous application. You have to get it there and you have to control it. This modified Holley regulator is setup to open on a hair trigger and offer stable fuel pressure throughout the run. It's been body relieved to speed up the opening rate and hand seated to reduce fuel creep. More instantly available torque for your nitrous program can be yours for only $64.95. Part # PN-803
Part # PG-803 The PG-803 is nothing new. Its a professionally modified Holley regulator that's been used for years in NHRA Pro-Stock competition. Unlike look-alike regulators that make big flow claims yet still utilize the small seat area that froths and foams up the fuel. We install a 50 percent larger seat area to reduce fuel bowl foam and stabilize the fuel pressure during high flow rates. You get good clear burnable fuel and more consistent power from run to run. Once again simplistic design is the key to consistency and reliability. The PG-803 has enough flow capability to CLEANLY feed over 1000 horsepower!
