{"product_id":"radium-engineering-multi-port-regulator-rotating-assembly-mpr-ra-black","title":"Radium Engineering Multi-Port Regulator Rotating Assembly","description":"\u003ch3\u003eRadium Engineering Multi-Port Regulator Rotating Assembly | Adjustable Fuel Pressure | Universal EFI Fuel Pressure Regulator\u003c\/h3\u003e\n\n\u003ch4\u003eOverview\u003c\/h4\u003e\n\u003cp\u003eThe Radium Engineering Multi-Port Regulator Rotating Assembly is a versatile, adjustable fuel pressure regulator designed for EFI vehicles with fuel pump flows ranging from 200 to 1400 liters per hour. This universal regulator is ideal for Subaru enthusiasts and other EFI users who require precise fuel pressure control in complex or simple fuel systems. Its compatibility with a wide range of fuels, including E85, methanol, ethanol, and various gasoline blends, makes it a reliable choice for performance builds and daily drivers alike.\u003c\/p\u003e\n\u003cp\u003eEngineered with a unique multi-port configuration, this regulator excels at combining dual fuel pumps into a single feed line or splitting a single feed line to dual fuel rails. The innovative tool-less pressure adjustment knob allows for quick and accurate tuning without the need for jam nuts or set screws, eliminating common vacuum or boost leaks. The 360-degree rotating vacuum reference port with multiple fitting options further enhances installation flexibility, making it suitable for a variety of fuel system layouts.\u003c\/p\u003e\n\u003cp\u003eFor Subaru owners focused on maintaining stable and consistent fuel pressure under high-flow conditions, this regulator offers proven performance backed by extensive track and bench testing. Its stainless steel return orifice ensures laminar flow for pressure stability, which is critical for reliable engine operation and tuning. Whether upgrading fuel delivery for a WRX STI or building a high-output BRZ, this regulator supports precise fuel management essential for maximizing power and drivability.\u003c\/p\u003e\n\n\u003ch4\u003eFeatures \u0026amp; Specifications\u003c\/h4\u003e\n\u003cp\u003eThis Radium Engineering Multi-Port Regulator Rotating Assembly is engineered for universal EFI applications and features a tool-less adjustable fuel pressure knob with a 360-degree rotating vacuum port. Constructed from high-quality anodized aluminum and stainless steel components, it delivers stable fuel pressure control and versatile installation options for Subaru enthusiasts seeking reliable and flexible fuel system solutions.\u003c\/p\u003e\n\u003cul style=\"list-style:none;padding:0;margin:0;\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Radium Engineering\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct:\u003c\/strong\u003e Multi-Port Regulator Rotating Assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 20-1100-00\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Universal EFI Vehicles\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Anodized Aluminum, Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Anodized Top\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConstruction:\u003c\/strong\u003e Precision Machined with Stainless Steel Return Orifice\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Not Specified\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Compatibility:\u003c\/strong\u003e Gasoline (Unleaded, Leaded, Oxygenated), Methanol, Ethanol, E85\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Pump Flow Range:\u003c\/strong\u003e 200 to 1400 LPH\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePressure Adjustment:\u003c\/strong\u003e Tool-less Knob with Incremental Detents (±0.5 psi per detent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVacuum Reference Port:\u003c\/strong\u003e 360° Rotating, Double O-Ring Sealed with Multiple Fittings Included\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Vacuum Fittings:\u003c\/strong\u003e 5mm Barbed, 3AN Male, 1\/4\" Push-To-Connect, Vacuum Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting Options:\u003c\/strong\u003e M6 Through-Holes and Included Mounting Bracket with Hardware\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReturn Ports:\u003c\/strong\u003e Two Lower Opposing Ports Flow Parallel with Pressure Ports\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eKey Benefits\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePerformance:\u003c\/strong\u003e Precise, tool-less fuel pressure adjustment improves tuning accuracy and engine response.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e High-quality anodized aluminum and stainless steel components ensure long-lasting reliability under demanding conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Universal design with multiple vacuum fittings and mounting options suits a wide range of Subaru platforms and custom EFI setups.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustability:\u003c\/strong\u003e 360-degree rotating vacuum port and plug options provide unmatched installation flexibility.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFuel Compatibility:\u003c\/strong\u003e Supports a broad spectrum of fuels including E85 and alcohol blends, ideal for performance and alternative fuel applications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStability:\u003c\/strong\u003e Laminar flow stainless steel return orifice enhances fuel pressure stability critical for consistent engine operation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eWhat's Included\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Radium Engineering Multi-Port Regulator Rotating Assembly\u003c\/li\u003e\n  \u003cli\u003e1× Mounting Bracket with M6 Hardware\u003c\/li\u003e\n  \u003cli\u003e1× 5mm Barbed Vacuum Fitting\u003c\/li\u003e\n  \u003cli\u003e1× Vacuum Plug Fitting (Returnless)\u003c\/li\u003e\n  \u003cli\u003e1× 1\/4\" Push-To-Connect Vacuum Fitting\u003c\/li\u003e\n  \u003cli\u003e1× 3AN Male Vacuum Fitting\u003c\/li\u003e\n  \u003cli\u003e2× 6AN ORB Plugs\u003c\/li\u003e\n  \u003cli\u003e1× 8AN ORB Plug\u003c\/li\u003e\n  \u003cli\u003e3× 6AN ORB to 6AN Male Adapters\u003c\/li\u003e\n  \u003cli\u003e1× 8AN ORB to 8AN Male Adapter\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eInstallation \u0026amp; Compatibility\u003c\/h4\u003e\n\u003cp\u003eInstallation of the Radium Engineering Multi-Port Regulator is straightforward for those familiar with fuel system plumbing, with multiple mounting options including bracket and through-hole mounts. The tool-less pressure adjustment knob simplifies tuning without specialized tools. Vacuum reference fittings are included to accommodate various hose types and orientations, enhancing ease of installation. While the regulator is universal, confirming compatibility with your specific Subaru model and fuel system setup is recommended. No special tools beyond standard fuel system plumbing equipment are required. For optimal performance, ensure proper fuel pump controller settings and consider professional tuning support when integrating into high-performance builds.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProfessional Installation:\u003c\/strong\u003e Recommended for complex fuel system setups\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModifications Required:\u003c\/strong\u003e None; plugs included for unused ports\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVerify Compatibility:\u003c\/strong\u003e Confirm fitment for your specific Subaru platform and fuel system configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eShop with confidence at Subimods—your Subaru parts specialists.\u003c\/p\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":46746283737263,"sku":"20-1100-00","price":199.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/3598\/4815\/files\/radium-engineering-multi-port-regulator-rotating-assembly-20-1100-00-5265397.webp?v=1775658729","url":"https:\/\/subimods.com\/products\/radium-engineering-multi-port-regulator-rotating-assembly-mpr-ra-black","provider":"Subimods.com","version":"1.0","type":"link"}