The FPR-D can be mounted any direction including upside down. A laser cut anodized aluminum mounting plate with countersink M6x1mm bolts/nuts are included. The FPR-D assembly features two M6x1mm threaded mounting holes. When installing, the NPT fitting requires PTFE paste for proper sealing.
A plug is included if this port will not be used. This Radium fuel pressure gauge is commonly used. The 1/8" NPT auxilary port can be used for monitoring fuel pressure, temperature, etc. When installing, the O-rings require petroleum oil for lubrication. Two -6AN and two -8AN adapter fittings are included to suit most aftermarket fuel systems. The inlet (side) port and outlet (bottom) port feature large 10AN ORB (7/8"-14) threaded ports. NOTE: Base pressure is measured with the fuel pump running without a vacuum line connected to the regulator. Any dynamic fuel pressure created by the rising rate FPR outside of this range is acceptable assuming the vacuum/boost reference line is connected. The base pressure requirement for maximum damping efficiency is 40-105psi (2.8-7.2bar). The integrated 1:1 fuel pulse damper stabilizes fuel pressure created by the fuel pressure regulator, fuel pump, fuel injectors, etc. Unlike many others, the stainless steel adjustament screw has super fine threads for resisting vacuum/boost leaks and fine tuning fuel pressure. Furthermore, with the addition of interchangeable return orifices, the regulator is a good match for big to small powered engines.įuel pressure is dialed in using the preload set screw on top. This added precision will resist diaphragm flutter and optimize pressure stability. Two interchangeable orifices are included to match the amount of fuel bypassed for the application. The high flow 1:1 rising rate design has been tested to regulate over 1,400 liters per hour (see MORE DETAILS tab). This product is NOT recommended for the low pressure side of mechanical fuel pumps. The FPR-D is compatible with all gasoline and alcohol blends of fuel including E85.Ģ. It is a fully functional high performance pressure regulator with a unique built-in fuel pulse damper, an industry first.ġ.
The Fuel Pressure Regulator-Damper (FPR-D) is the ultimate solution for consolidating critical fuel system components into a high-flow package.
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