{"product_id":"radium-engineering-fuel-pressure-regulator-dual-dfpr","title":"Radium Engineering Fuel Pressure Regulator – Dual (DFPR)","description":"\u003cp\u003eRadium Engineering developed the \u003cstrong\u003eFuel Pressure Regulator\u003c\/strong\u003e for \u003cstrong\u003eDual (DFPR)\u003c\/strong\u003e around the needs of modified street and competition cars, where component compatibility and clean system layout matter as much as outright capacity.\u003c\/p\u003e\u003ch3\u003eWhy This Upgrade Matters\u003c\/h3\u003e\u003cp\u003eFuel pressure control is fundamental to injector consistency and repeatable tuning. A regulator must manage return flow while maintaining the pressure strategy required by the injectors and ECU, particularly as pump flow and engine demand increase.\u003c\/p\u003e\u003ch3\u003eProduct-Specific Details\u003c\/h3\u003e\u003cp\u003eThe Radium Engineering DFPR (Dual Fuel Pressure Regulator) was designed specifically for custom fuel systems that use both direct injection and port injection. The DFPR permits independent fuel pressures for each system while using 1 fuel feed input. Furthermore, the architecture suppresses the aggressive pressure spikes created by the mechanical (positive displacement plunger-type) HPFP pump used for direct injection. FPR1 is used for direction injection and FPR2 is used for port injection.\u003c\/p\u003e\u003ch3\u003eFitment \u0026amp; Application\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Dual (DFPR)\u003cbr\u003e\u003cstrong\u003eFitment style:\u003c\/strong\u003e Application-Specific\u003c\/p\u003e\u003ch3\u003eTechnical Notes\u003c\/h3\u003e\u003cp\u003eBase pressure should be set with the system configured as required by the engine management strategy. Pump flow affects the regulator' operating range, and boosted applications may require a manifold-reference connection where the specific regulator supports it.\u003c\/p\u003e\u003ch3\u003eRadium Part Number\u003c\/h3\u003e\u003cp\u003e\u003ccode\u003eRAD20-1102\u003c\/code\u003e\u003c\/p\u003e\u003ch3\u003eEnthusiast Notes\u003c\/h3\u003e\u003cp\u003eFor tuned cars, stable pressure is part of stable fueling. Set the regulator with a gauge or sensor and validate pressure behavior under load rather than assuming the static setting tells the whole story.\u003c\/p\u003e\u003ch3\u003eBefore Ordering\u003c\/h3\u003e\u003cp\u003eConfirm required base-pressure range, total pump flow, feed\/return port sizes and whether vacuum\/boost reference is required. A regulator should be sized as part of the complete fuel system.\u003c\/p\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":50230208856314,"sku":"RAD20-1102","price":284.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/96c82cdb6382577bc66416e9406ecb75L.jpg?v=1764569254","url":"https:\/\/lgcracing.com\/products\/radium-engineering-fuel-pressure-regulator-dual-dfpr","provider":"Legacy Racing","version":"1.0","type":"link"}