Radium Engineering FPD-R Direct Mount Fuel Pulse Damper Kit - 8AN ORB

SKU: RAD20-0176

$108.99 CAD

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The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a fuel pulse damper (FPD) is often necessary.
The FPD's internal diaphragm will absorb oscillating pulses and stabilize fuel pressure. This correction can be measured throughout the RPM range and can often help idle surge, especially with high flow injectors. Furthermore, a fuel pulse damper can help solve erratic lean air/fuel ratio spikes, commonly experienced as "stumbling", that are difficult to tune out.
The FPDs can be mounted at any possible angle including upside down. For best results, the damper should be mounted directly onto the fuel rail(s). 
This product is safe for use with all fuel types including alcohol blends such as E85. Download the installation instructions for more info. 
What Makes Radium FPDs Unique?
Along 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 becomes essential for boosted systems that use a 1:1 rising rate fuel pressure regulator.
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.
Which Damper Do I Choose?
The FPD-R (Fuel Pulse Damper-Range) and FPD-XR (Fuel Pulse Damper-Extra Range) both have unique base "static" fuel pressure requirements:
- FPD-R base pressure requirement = 40 - 70psi (static)
- FPD-XR base pressure requirement = 40 - 120psi (static)
Base pressure is the fuel pressure measured when the fuel pump is running WITHOUT a vacuum line connected to the regulator.
Kit Includes:
- Anodized and laser engraved aluminum top
- Anodized aluminum body with male threads - 8AN ORB
- Stainless steel hardware
- Rubber vacuum hose, 4mm ID
- Vacuum hose Y-fitting
- This is the FPD-R Fuel Pulse Damper Kit w/ -8AN fittings
- The ranges above are base static fuel pressures only. 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.

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