Note: Not recommended for the low pressure side of mechanical fuel pumps. * The FPR-D can be mounted any direction including upside down * Mounting-the FPR-D assembly features two M6x1mm threaded mounting holes-a laser-cut anodized aluminum mounting plate with countersink M6x1mm bolts/nuts are included The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. Regulator is meant to be used on the return side of. NPT auxiliary port can be used for monitoring fuel pressure, temperature, etc. Includes -6 AN and -8 AN fittings to configure regulator as needed. * When installing, the O-rings require petroleum oil for lubrication to 14) threaded ports-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 in. * The integrated fuel pulse damper stabilizes fuel pressure created by the fuel pressure regulator, fuel pump, fuel injectors, etc.-base pressure is measured with the fuel pump running without a vacuum line connected to the regulator * With the addition of interchangeable return orifices, the fuel pressure regulator-damper is a good match for big to small, powered engines
* Two interchangeable orifices are included to match the amount of fuel bypassed for the application-this added precision will resist diaphragm flutter and optimize pressure stability * Fuel pressure is dialed in using the preload set screw on top-unlike many others, the stainless steel adjustment screw has super fine threads for resisting vacuum/boost leaks and fine tuning fuel pressure * Compatible with all gasoline and alcohol blends of fuel including E85
It is a fully functional high performance pressure regulator with a unique built-in fuel pulse damper-an industry first!įuel pressure regulator with pulse damper features: It is a fully functional high performance pressure regulator with a unique built-in fuel pulse damper, an industry first. and consistent rail pressure, a fuel pulse damper (FPD) is often necessary. Radium Engineering fuel pressure regulator with pulse dampers are the ultimate solution for consolidating critical fuel system components into a high-flow package. Radium Engineering Fuel Pressure Regulators with Pulse Damper Fuel pulse damper that can be used in-line with a fuel hose. Regulator is meant to be used on the return side of the fuel system, good up to 1,400 lph. Fuel Injection Pressure Damper - RADIUM Engineering - 20-0199-01. Includes -6 AN and -8 AN fittings to configure regulator as needed. Any dynamic fuel pressure created by a rising-rate FPR outside of this range is acceptable, but only when the base "static" fuel pressure is set within these ranges and the vacuum/boost reference line is connected.Includes built in 1:1 fuel pulse damper. These ranges are base static fuel pressures only. The FPD-R and FPD-XR both have unique base "static" fuel pressure requirements, 40-45psi for the FPD-R and 43-78psi for the FPD-XR. What is the difference between FPD-R and FPD-XR? The FPD-R (green top) is slightly shorter than the FPD-XR (black top) allowing it to be used in space-contrained applications. The 8AN ORB (3/4"-16 UNF threads) version seals using a Viton O-ring while the 3/8" NPT variation seals with the tapered pipe threads. The anodized aluminum housing features two selectable threaded male fittings. This becomes essential for boosted systems that use a 1:1 rising rate fuel pressure regulator.
Furthermore, a fuel pulse damper can help solve erratic lean air/fuel ratio spikes, commonly experienced as "stumbling", that are difficult to tune out.Īlong with having the flexibilty of using common fittings, Radium Engineering FPD's use a vacuum/boost reference port which allows for proper fuel pulse damper performance even at elevated fuel pressures. This correction can be measured throughout the RPM range and can often help idle surge, especially with high flow injectors. The FPD's internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. In order to achieve a safe and consistent rail pressure, a fuel pulse damper (FPD) is often necessary. The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. Fuel Pulse Damper Kits by Radium Engineering
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