{"product_id":"radium-engineering-mazda-20b-primary-fuel-rail-top-feed-conversion","title":"Radium 20-1120 Primary Top Feed Fuel Rail for 1990-1995 Mazda Cosmo 20B-REW","description":"\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e1990-1995 Eunos\/Mazda Cosmo (20B-REW rotary engine)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFitment Notes\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eThis is the primary injector location fuel rail only; a separate secondary rail is required for a complete 20B-REW fuel rail conversion\u003c\/li\u003e \u003cli\u003eRequires universal top-feed fuel injectors with a 34mm height and 14mm O-ring dimensions (e.g., Injector Dynamics 1050-XDS, 1300-XDS, 1700-XDS, or 2600-XDS in the 34.14.14 configuration) - injectors are not included and must be purchased separately\u003c\/li\u003e \u003cli\u003eAppropriate 8AN ORB fittings must be selected separately based on your specific accessory setup (regulator, gauge, pulse damper, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eConverts the factory 20B-REW primary injector location to top-feed injectors\u003c\/li\u003e \u003cli\u003eCNC-machined billet aluminum construction, black anodized for durability and E85 compatibility\u003c\/li\u003e \u003cli\u003eLarge internal bore supports high fuel flow for increased power applications\u003c\/li\u003e \u003cli\u003eIncluded anodized billet aluminum injector seats work with or without the OEM diffusers in place\u003c\/li\u003e \u003cli\u003eFKM O-rings on the injector seats make the rail suitable for boosted applications\u003c\/li\u003e \u003cli\u003eThermal insulating spacers and washers with stainless steel hardware reduce heat transfer into the fuel\u003c\/li\u003e \u003cli\u003eThree 8AN ORB ports, including an extra center port for accessories like a fuel temperature sensor, pressure transducer, or fuel pulse damper\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e \u003cli\u003eMaterial: Billet Aluminum, Black Anodized\u003c\/li\u003e \u003cli\u003ePort Configuration: 3x 8AN ORB\u003c\/li\u003e \u003cli\u003eInjector Seat Size: 14mm Lower, FKM O-Ring Sealed\u003c\/li\u003e \u003cli\u003eRequired Injector Dimensions: 34mm Height, 14mm O-Ring\u003c\/li\u003e \u003cli\u003eFuel Compatibility: All popular fuel types, including E85\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eIncluded Components\u003c\/h4\u003e\u003cul\u003e \u003cli\u003e1x Anodized Billet Aluminum Fuel Rail\u003c\/li\u003e \u003cli\u003eAnodized Billet Aluminum Injector Seats\u003c\/li\u003e \u003cli\u003eThermal Spacers\u003c\/li\u003e \u003cli\u003eMounting Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eProduct Description\u003c\/h4\u003e\u003cp\u003eThe Radium 20-1120 is a high-flow primary fuel rail built for the 20B-REW rotary engine found in the 1990-1995 Eunos\/Mazda Cosmo, converting the factory injector setup to a top-feed configuration. Machined from billet aluminum and black anodized for durability and full compatibility with E85 and other popular fuel types, the rail's large internal bore is sized to support serious power increases without becoming a fuel delivery bottleneck.\u003c\/p\u003e\u003cp\u003eIncluded injector seats are anodized billet aluminum with FKM O-rings, engineered to work whether or not the OEM diffusers remain in place, and rated for boosted applications. Thermal insulating spacers and stainless steel hardware help keep engine heat from soaking into the fuel rail, protecting fuel temperature under sustained load. Three 8AN ORB ports give you room to plumb a fuel pressure regulator, gauge, or pulse damper, with the extra center port available for accessories like a fuel temperature sensor or pressure transducer.\u003c\/p\u003e\u003cp\u003eThis rail requires universal top-feed injectors with a 34mm body height and 14mm O-ring diameter - injectors are sold separately, and several Injector Dynamics part numbers are confirmed to fit. As the primary-location rail, it's designed to be installed alongside Radium's matching secondary rail for a full top-feed conversion on the 20B-REW.\u003c\/p\u003e\u003cmeta name=\"description\" content=\"Upgrade your 1990-1995 Mazda Cosmo 20B-REW with the Radium 20-1120 top-feed fuel rail for improved fuel flow and E85 compatibility.\"\u003e\u003cmeta name=\"keywords\" content=\"Radium fuel rail, Mazda Cosmo performance parts, 20B-REW top-feed conversion, high-flow fuel rail, billet aluminum fuel rail, E85 compatible fuel rail, injector seats for 20B-REW, 8AN ORB fuel fittings, rotary engine fuel injection, aftermarket fuel rail for Mazda\"\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":53985513275711,"sku":"RAD20-1120","price":180.45,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0832\/7308\/9343\/files\/cb0f42e15da110bc4e2cec66c9cca447L.jpg?v=1783011817","url":"https:\/\/wcaperformance.com\/products\/radium-engineering-mazda-20b-primary-fuel-rail-top-feed-conversion","provider":"WCA Performance","version":"1.0","type":"link"}