{"product_id":"radium-v2-fpd-r-fuel-pulse-dampener-8an-orb-20-0776","title":"Radium V2 FPD-R Fuel Pulse Dampener - 8AN ORB","description":"\u003cp\u003e\u003cstrong\u003eV2 FPD: Even after tightened, the newest 8AN ORB dampers (20-0776 and 20-0777), will swivel permiting the vacuum port to be clocked 360 degrees.\u003c\/strong\u003e\u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003eThe 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.\u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eWhat makes Radium FPDs unique?\u003c\/strong\u003e\u003c\/p\u003e  \u003cp\u003eAlong 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.\u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eWhat is the difference between FPD-R and FPD-XR?\u003c\/strong\u003e\u003c\/p\u003e  \u003cp\u003eThe FPD-R (green top) is slightly shorter than the FPD-XR (black top) allowing it to be used in space-contrained applications.\u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eWHICH DAMPER DO I CHOOSE?\u003c\/strong\u003e\u003c\/p\u003e  \u003cp\u003eThe FPD-R (Fuel Pulse Damper-Range) and FPD-XR (Fuel Pulse Damper-Extra Range) both have unique base \"static\" fuel pressure requirements:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eFPD-R base pressure requirement = 40 - 70psi (static)\u003c\/li\u003e \t\u003cli\u003eFPD-XR base pressure requirement = 40 - 105psi (static)\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eBase pressure is the fuel pressure measured when the fuel pump is running WITHOUT a vacuum line connected to the regulator.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eIMPORTANT: The ranges above are base static fuel pressures only. Any dynamic fuel pressure created by a rising-rate FPR outside of t\u003c\/strong\u003e\u003c\/p\u003e","brand":"Radium","offers":[{"title":"Default Title","offer_id":48943295987812,"sku":"20-0776","price":178.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0745\/6260\/1060\/files\/20-0776.jpg?v=1786043841","url":"https:\/\/kyp.com.au\/products\/radium-v2-fpd-r-fuel-pulse-dampener-8an-orb-20-0776","provider":"KYP Performance House","version":"1.0","type":"link"}