{"product_id":"radium-engineering-fuel-pulse-damper-fpd-xr-universal","title":"Radium Engineering Fuel Pulse Damper (FPD-XR) CLEARANCE - Universal","description":"\u003cp\u003e\u003cspan\u003ePerfect match to go with the \u003ca href=\"https:\/\/www.rivalperformance.co.uk\/products\/radium-engineering-fuel-pressure-gauge-clearance-universal\"\u003eRadium Engineering Fuel Pressure Gauge\u003c\/a\u003e that is in the clearance!\u003cbr\u003e\u003cbr\u003eRadium Engineering Fuel Pulse Damper uses 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\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eWhat is the difference between FPD-R and FPD-XR?\u003c\/strong\u003e\u003c\/span\u003e \u003cbr\u003e\u003cspan\u003eAt 1.98\" tall, the FPD-R (green top) is slightly shorter than the 2.60\" FPD-XR (black top) allowing it to be used in space-contrained applications. But the FPD-XR has a wider response range. Radium recommends to use the FPD-XR if you have the space.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eFPD-XR base pressure requirement = 40 - 105psi (static)\u003cbr\u003e\u003c\/strong\u003e\u003cem\u003eBase pressure is the fuel pressure measured when the fuel pump is running WITHOUT a vacuum line connected to the regulator.\u003c\/em\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eIMPORTANT:\u003c\/strong\u003e The range above is 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.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003e\u003cstrong\u003eExample 1:\u003c\/strong\u003e \u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cstrong\u003eVehicle:\u003c\/strong\u003e Mitsubishi EVO\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cstrong\u003eOEM Base Static Fuel Pressure:\u003c\/strong\u003e 43.5psi\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cstrong\u003eBoost Pressure:\u003c\/strong\u003e 30psi\u003cbr\u003e\u003c\/em\u003e\u003cstrong\u003eRising Rate Pressure Regulator?\u003c\/strong\u003e Yes\u003cbr\u003e\u003cstrong\u003eCan I use a FPD-R?\u003c\/strong\u003e Yes. Even though fuel pressure is 73.5psi at full boost, the FPD-R will work because the base static pressure was set within the 40-70psi requirement. However, the vacuum\/boost reference line must be installed. \u003cbr\u003e\u003cstrong\u003eCan I use a FPD-XR?\u003c\/strong\u003e Yes. Also, the vacuum\/boost reference line does not need to be installed since maximum fuel pressure does not exceed 105psi. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cem\u003e\u003cstrong\u003eExample\u003c\/strong\u003e\u003cstrong\u003e 2:\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eVehicle:\u003c\/strong\u003e BMW E46 M3\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cstrong\u003eOEM Base Static Fuel Pressure:\u003c\/strong\u003e 72.5psi\u003c\/em\u003e\u003cbr\u003e\u003cem\u003e\u003cstrong\u003eBoost Pressure:\u003c\/strong\u003e 20psi\u003cbr\u003e\u003c\/em\u003e\u003cstrong\u003eRising Rate Pressure Regulator?\u003c\/strong\u003e Yes\u003cbr\u003e\u003cstrong\u003eCan I use a FPD-R?\u003c\/strong\u003e No. Base static fuel pressure exceeds the 40-70psi requirement.\u003cbr\u003e\u003cstrong\u003eCan I use a FPD-XR?\u003c\/strong\u003e Yes. Also, the vacuum\/boost reference line does not need to be installed since maximum fuel pressure does not exceed 105psi.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eFeatures\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan\u003eAn anodized aluminum housing with a large 0.69\" center bore. Uses two in-line inlet\/outlet ports machined with 3\/4\"-16 UNF threads for 8AN ORB fittings, with 6AN\u003c\/span\u003e\u003cspan\u003e male adapter fittings. Fittings are sealed to the billet housing using FKM O-rings. \u003c\/span\u003e\u003cspan\u003e \u003cbr\u003e\u003cbr\u003eAn 1\/8\" NPT female port is threaded into the center of the fuel pulse damper. A fuel pressure gauge is commonly used here, or other sensors for pressure or temperature data.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eUsing the supplied M6 bolts\/nuts, the kit can be mounted at any possible angle including upside down. For best results, the damper should be plumbed as close to the fuel rail(s) as possible. \u003c\/span\u003e\u003cspan\u003eLike any fuel system part, the FPD kit should be kept away from excessive heat areas. This product is safe for use with all fuel types including alcohol blends such as E85. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"text-decoration: underline; font-size: medium;\"\u003e\u003cstrong\u003eIncluded\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e-Anodized XR=extra range aluminum top\u003cbr\u003e-Anodized aluminum body with female -8AN ORB ports\u003cbr\u003e-Anodized aluminum ORB adapter fittings, -6AN male size\u003cbr\u003e-Gasoline and alcohol (E85) resistant diaphragm\u003cbr\u003e-Stainless steel M6x1mm mounting bolts\/nuts\u003cbr\u003e-Rubber vacuum hose, 4mm ID\u003cbr\u003e-Vacuum hose Y-fitting \u003cbr\u003e-1\/8\" NPT plug\u003c\/span\u003e\u003c\/p\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":57457044652377,"sku":"20-0200-06","price":90.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/7765\/9225\/files\/20-0200.jpg?v=1772736745","url":"https:\/\/www.rivalperformance.co.uk\/products\/radium-engineering-fuel-pulse-damper-fpd-xr-universal","provider":"Rival Performance","version":"1.0","type":"link"}