Universal Adjustable Fuel Pressure Regulator

Our Universal Adjustable Fuel Pressure Regulator can be adjusted manually. High-precision body effectively improves fuel supply pressure and enhances acceleration and re-acceleration power.

To maintain precise fuel metering, the vacuum modulated pressure regulator maintains a constant pressure differential across the fuel injector. This means that fuel rail pressure will always be at a constant value above mainfold absolute pressure.

Low intake manifold pressure (slow down for example) pulls on the diaphragm decreasing spring pressure. This allows more fuel to return to the fuel tank deceasing pressure in the fuel rail. Opening the throttle (speeding for example) increases manifold pressure. With less vacuum on the diaphragm spring pressure will incease restricting fuel flow to the fuel tank. This incease pressure in the fuel rail.