{"product_id":"radium-engineering-8an-orb-direct-mount-regulator-rotating-assembly-dmr-ra-black","title":"Radium Engineering 8AN ORB Direct Mount Regulator-Rotating Assembly (DMR-RA) - Black","description":"\u003cp\u003e\u003cstrong\u003e20-1623-00\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe included union fitting allows installation onto any 8AN ORB port, most commonly found on Radium fuel rails. Additional adapters are available for attachment to 6AN ORB and 10AN ORB ports.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch4\u003eFuel Compatibility\u003c\/h4\u003e\n\u003cp\u003eAll RA-series regulators are suitable with all gasoline types including unleaded, leaded, oxygenated, and pre-mixes. Furthermore, they are compatible with alcohol blends of fuel including methanol, ethanol, and E85.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Radium Direct Mount Regulator (DMR) is a compact high performance adjustable EFI fuel pressure regulator that is capable of managing high flow fuel systems. It's compact package fits in tight spaces, but does not compromise on performance.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"image-with-alt-overlay\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003ePLUMBING\u003c\/h3\u003e\n\u003cp\u003eThe main inlet port on the regulator is female threaded for 6AN ORB. A swiveling double ended adapter (shown below) is included which allows the regulator to be used in any compatible 8AN ORB fuel rail port, such as those found Radium Engineering fuel rails. Other swivel adapters are available but sold separately. \u003c\/p\u003e\n\u003cp\u003eThe bottom return port is threaded for 6AN ORB. The provided 90 degree 6AN male fuel return fitting can swivel 360 degrees, permitting a multitude of mounting configurations. Other adapter fittings can be installed in the return port if needed (sold separately).\u003c\/p\u003e\n\u003cp\u003eThis regulator has two 1\/8' NPT side port locations that can be used with a pressure gauge, transducer, temperature probe, etc. Two 1\/8' NPT plugs are provided.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"image-with-alt-overlay\"\u003e\u003cimg class=\"myImages\" id=\"myImg\" src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/20-0686a.jpg\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eFUEL PRESSURE ADJUSTMENT\u003c\/h3\u003e\n\u003cp\u003eRA-series regulators feature the first tool-less pressure adjustment. A jam nut and set screw are no longer required. With a simple turn of the knob, pressure will be increased or decreased. Additionally, there are no inherent air (vacuum\/boost) leaks through the threads that traditionally a smoke detector would pick up.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"image-with-alt-overlay\"\u003e\u003cimg class=\"myImages\" id=\"myImg\" src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/20-1623-00_B.jpg\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003e1:1 RISING RATE VACUUM REFERENCE\u003c\/h3\u003e\n\u003cp\u003eRA-series regulators feature a 360 degree swiveling vacuum reference port that is double O-ring sealed. This is the first in the industry. It permits the installer to quickly point the vacuum fitting in any direction with no tools required.\u003c\/p\u003e\n\u003cp\u003eThere are 4 interchangeable 10-32 threaded vacuum port fittings provided to cover all scenarios.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarbed Fitting:\u003c\/strong\u003e A black zinc-plated 3\/16\" (5mm) barb machined from high strength steel that is compatible with the following vacuum hoses: 5\/32\" (4mm), 3\/16\" (5mm), and 7\/32\" (6mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3AN Male Fitting:\u003c\/strong\u003e A black zinc-plated adapter machined from high strength steel that is compatible with 3AN hose ends\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePush-To-Connect:\u003c\/strong\u003e A nickel-plated brass fitting with Buna-N O-rings that is compatible with hard plastic 1\/4' OD tubing\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eVacuum Plug:\u003c\/strong\u003e A black oxide stainless steel screw that is used to maintain a constant (non dynamic) fuel pressure. Beginning in the mid 1990s, vehicle manufacturers started transitioning to returnless fuel systems to lower EVAP emissions. To keep temperatures lower, these regulators are mounted inside the tank and do NOT have the ability to be vacuum referenced. This plug would be required in this scenario.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eNOTE: When installing the vacuum fitting, it is recommended to use a wicking medium-strength thread locker.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"image-with-alt-overlay\"\u003e\u003cimg class=\"myImages\" id=\"myImg\" src=\"https:\/\/www.radiumauto.com\/cdn\/shop\/files\/Vacuum_Reference_Fittings.png\"\u003e\u003c\/div\u003e\n\u003chr\u003e\n\u003ch3\u003eFUEL PRESSURE STABILITY\u003c\/h3\u003e\n\u003cp\u003eWith years of track and bench testing data, the RA-series regulators have been refined to optimize pressure management. A newly designed single stainless steel return orifice generates laminar flow that enhances stability control.\u003c\/p\u003e\n\u003cp\u003eMinimum Pressure: 18.5psi (1.3bar)\u003cbr\u003eMaximum Pressure: *N\/A\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*This is rhetorical. The maximum pressure is dependent on the relief valve inside the pump or the maximum current the fuel pump controller allows.\u003c\/em\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eABOUT FUEL PRESSURE DROP AFTER SHUTOFF\u003c\/h3\u003e\n\u003cp\u003eSome installations may experience a rapid fall of fuel pressure when the engine and\/or fuel pump shuts off. This is considered normal operation for aftermarket fuel pressure regulators, regardless of brand. \u003c\/p\u003e\n\u003cp\u003eThis can occur due to the diaphragm seat and the return orifice not fully sealing when fuel flow is stopped. For regulators to have the ability to regulate high fuel flow rates, the size of these components must be increased. This creates larger sealing surfaces between the components, preventing them from forming a perfect seal, even with high spring rates. This is not an indication of an issue or defect and it is not a cause for concern on its own.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eYou do NOT need to contact technical support about this issue.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFuel pressure will reset immediately when the fuel pump is activated again.\u003c\/p\u003e\n\u003cp\u003eIf the engine is experiencing other symptoms such as long cranking to start, or delays in pressure building when cranking, these symptoms are unrelated to the regulator. There is likely an issue with the fuel feed hose draining back to the tank. This is most likely due to an internal leak somewhere in the pump module: possibly a venturi jet pump, or the lack of a fuel pump check valve.\u003c\/p\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":43007515263043,"sku":"20-1623-00","price":250.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0278\/0456\/5571\/files\/1200px_wide-2.webp?v=1772124435","url":"https:\/\/gumotorsport.com\/products\/radium-engineering-8an-orb-direct-mount-regulator-rotating-assembly-dmr-ra-black","provider":"GUMOTORSPORT","version":"1.0","type":"link"}