{"product_id":"radium-engineering-fuel-rail-mazda-20b-rew-primary-top-feed-conversion","title":"Radium Engineering Primary Top-Feed Fuel Rail – Mazda 20B-REW","description":"\u003cp\u003eRadium Engineering developed the \u003cstrong\u003eFuel Rail\u003c\/strong\u003e for \u003cstrong\u003eMazda 20B-REW Primary Top Feed Conversion\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 rails become a packaging and flow foundation once an engine moves beyond the limitations of the original fuel system. The goal is not simply a larger rail: the rail must provide the injector interface, port layout and plumbing flexibility needed to build a serviceable, stable fuel system around the engine.\u003c\/p\u003e\u003ch3\u003eProduct-Specific Details\u003c\/h3\u003e\u003cp\u003eThe Radium Engineering high flow primary fuel rail is for the 20B-REW rotary engine originally found in the 1990-1995 Mazda\/Eunos Cosmo. The aluminum fuel rail is anodized black for compatibility with all popular fuel types including E85. Manufactured with a large internal bore, the fuel rail can support all necessary engine power requirements. Converts to top feed fuel injectors (not included).\u003c\/p\u003e\u003ch3\u003eFitment \u0026amp; Application\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eApplication:\u003c\/strong\u003e Mazda 20B-REW Primary Top Feed Conversion\u003cbr\u003e\u003cstrong\u003eFitment style:\u003c\/strong\u003e Application-Specific\u003c\/p\u003e\u003ch3\u003eTechnical Notes\u003c\/h3\u003e\u003cp\u003eRadium performance rails commonly use anodized aluminum construction and ORB-style end ports to support configurable AN plumbing. Injector dimensions and sealing style remain application-dependent, so injector selection should be confirmed with the injector manufacturer or tuner.\u003c\/p\u003e\u003ch3\u003eRadium Part Number\u003c\/h3\u003e\u003cp\u003e\u003ccode\u003eRAD20-0464\u003c\/code\u003e\u003c\/p\u003e\u003ch3\u003eEnthusiast Notes\u003c\/h3\u003e\u003cp\u003eFor higher-power or track-focused builds, the real advantage is the freedom to design the rail, regulator, sensor and plumbing layout around the engine instead of being locked into the factory fuel hardware.\u003c\/p\u003e\u003ch3\u003eBefore Ordering\u003c\/h3\u003e\u003cp\u003eConfirm engine\/application, injector dimensions, required adapters, regulator strategy and whether a separate plumbing kit is needed. Fuel injectors and AN adapter fittings are not assumed to be included unless specifically listed for the selected SKU.\u003c\/p\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":50230218981626,"sku":"RAD20-0464","price":180.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0325\/6352\/7739\/files\/e053a8bdb3131685b29d2d5dde960e02L.jpg?v=1764569189","url":"https:\/\/lgcracing.com\/products\/radium-engineering-fuel-rail-mazda-20b-rew-primary-top-feed-conversion","provider":"Legacy Racing","version":"1.0","type":"link"}