{"product_id":"radium-fuel-pulse-damper-inline-kits-fpd-r-barb-20-0200-1","title":"Radium Fuel Pulse Damper Inline Kits FPD-R Barb 20-0200-01","description":"\u003cdiv vocab=\"https:\/\/schema.org\/\" typeof=\"Product\"\u003e\u003cspan property=\"description\"\u003e\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"font-size: small;\"\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\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"font-size: small;\"\u003eMany high performance OEM engines use an in-line fuel pulse damper from the factory including the Toyota 2JZ-GTE, Nissan VQ35DE, and Subaru EJ20\/EJ25. The use of an inline damper is great for applications where there is not an option for direct fuel rail mounting.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr style=\"font-family: Arial; font-size: large;\"\u003e\n\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cspan style=\"text-decoration-line: underline; font-size: medium;\"\u003e\u003cstrong\u003eWhat makes Radium FPDs unique?\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\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\/span\u003e\u003c\/p\u003e\n\u003chr style=\"font-family: Arial; font-size: large;\"\u003e\n\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"text-decoration-line: underline; font-size: medium;\"\u003e\u003cstrong\u003eWhat is the difference between FPD-R and FPD-XR?\u003c\/strong\u003e\u003c\/span\u003e \u003cbr\u003e\u003cspan style=\"font-size: small;\"\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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong\u003eWhich damper do I choose?\u003c\/strong\u003e\u003cbr\u003eThe FPD-\u003cstrong\u003eR\u003c\/strong\u003e (Fuel Pulse Damper-\u003cstrong\u003eRange\u003c\/strong\u003e) and FPD-\u003cstrong\u003eXR\u003c\/strong\u003e (Fuel Pulse Damper-\u003cstrong\u003eExtra Range\u003c\/strong\u003e) both have unique base \"static\" fuel pressure requirements:\u003cstrong\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(128, 128, 128);\"\u003eFPD-R base pressure requirement = 40 - 70psi (static)\u003c\/span\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan style=\"color: rgb(128, 128, 128);\"\u003eFPD-XR base pressure requirement = 40 - 105psi (static)\u003c\/span\u003e\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 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.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"font-size: small;\"\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 style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"font-size: small;\"\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.\u003c\/span\u003e\u003c\/p\u003e\n\u003chr style=\"font-family: Arial; font-size: large;\"\u003e\n\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cstrong style=\"font-size: medium;\"\u003e\u003cspan style=\"text-decoration-line: underline;\"\u003eFeatures\u003cbr\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"font-size: small;\"\u003eThe kit features an anodized aluminum housing with a large 0.69\" center bore that uses two in-line inlet\/outlet ports that are machined with 3\/4\"-16 UNF threads for 8AN ORB fittings. \u003c\/span\u003e\u003cspan style=\"font-size: small;\"\u003eDepending on the size of the fuel feed hose used, there are 3 kits to choose from which include different male adapter fittings (-6AN, -8AN, barb). These fittings seal to the billet housing using Viton O-rings. \u003c\/span\u003e\u003cspan style=\"font-size: small;\"\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 style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"font-size: small;\"\u003eUsing the supplied M6 bolts\/nuts, the FPD 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 style=\"font-size: small;\"\u003eLike any fuel system part, the FPD kit should be kept away from excessive heat areas.\u003cbr\u003e\u003cbr\u003eThis product is safe for use with all fuel types including alcohol blends such as E85. \u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr style=\"font-family: Arial; font-size: large;\"\u003e\n\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003cspan style=\"text-decoration-line: underline;\"\u003e\u003cstrong style=\"font-size: medium;\"\u003eFittings\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"font-family: Arial; font-size: large;\"\u003eThe inline dampers are offered in three different versions and a selection should be made based on the type of hose connection needed.\u003cbr\u003eThe -01 version is a great option when using 5\/16\" rubber fuel hoses. Hose clamps are required.\u003cbr\u003eThe -06 version comes with adapter fittings for connecting -6AN hoses\u003cbr\u003eThe -08 version comes with adapter fittings for connecting -8AN hoses\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"font-family: Arial; font-size: large; text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.radiumauto.com\/Assets\/ProductDESC\/inlinedampers2.jpg?ts=012426\" alt=\"\" width=\"600\" height=\"400\"\u003e\u003c\/div\u003e\n\u003cspan style=\"font-family: Arial; text-decoration-line: underline;\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003eWhat's Included\u003cbr\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003cstrong style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/strong\u003e\u003cstrong style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/strong\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e-Anodized\/laser engraved aluminum top\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e, R=range or XR=extra range\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e-Anodized aluminum body with female -8AN ORB ports\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e-Anodized aluminum ORB adapter fittings, selectable size\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e-Gasoline and alcohol (E85) resistant diaphragm\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e-Stainless steel M6 mounting bolts and nuts\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e-Rubber vacuum hose, 4mm ID\u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e-Vacuum hose Y-fitting \u003cbr\u003e\u003c\/span\u003e\u003cspan style=\"font-family: Arial; font-size: small;\"\u003e-1\/8\" NPT plug\u003cbr\u003e\u003cbr\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/www.radiumauto.com\/Assets\/ProductImages\/prod_pic-3767.jpg\" alt=\"\" width=\"600\" height=\"397\"\u003e\u003c\/div\u003e\n\u003cbr\u003e\u003c\/span\u003e\u003cp style=\"font-family: Arial; font-size: large;\"\u003e\u003c\/p\u003e\n\u003chr style=\"font-family: Arial; font-size: large;\"\u003e\n\u003cp style=\"font-family: Arial; font-size: large; text-align: center;\"\u003e\u003cspan style=\"font-size: small;\"\u003e\u003cimg src=\"https:\/\/www.radiumauto.com\/Assets\/ProductImages\/Inline_FPD_Dims.jpg\" alt=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\u003c\/span\u003e\u003c\/div\u003e\u003cbr\u003e\u003ctable cellspacing=\"10\" cellpadding=\"0\" align=\"left\" style=\"width:100%\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 20-0200-01\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Radium\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Radium","offers":[{"title":"Default Title","offer_id":44019633684593,"sku":"20-0200-01","price":123.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2286\/3539\/files\/57_62d8a4c9-08a8-47ee-a3cd-e0850608978a.jpg?v=1786511340","url":"https:\/\/541motorsports.com\/products\/radium-fuel-pulse-damper-inline-kits-fpd-r-barb-20-0200-1","provider":"541 Motorsports","version":"1.0","type":"link"}