An aftermarket injector that is 60mm long with 11mm upper O-ring and 14mm lower O-ring must be used Air-assist intake manifolds require the Radium injector seats.
These use a unique OEM fuel injector that is not replicated in the aftermarket.
Late model (and California-spec) 2JZ-GE engines use Toyota air-assist emissions equipment. 
For engines that do NOT use Toyota air assist equipment, use your preferred injector manufacturer's suggestion for OEM equivalent fuel injectors.
11mm injector bores (compatible w/ factory injectors).The OEM fuel injectors are compatible, however, using aftermarket injectors requires the use of special Radium-designed injector seats which are included with the fuel rail kit.įactory mounting bosses are used for easy bolt-on installation. The fuel rail features four 8AN ORB ports that can be used for fuel plumbing using -AN hose as well as fuel system accessories like a pressure transducer or a fuel pulse damper. Because the architecture of the 2JZ-GE intake manifold makes this fuel rail unique from the 2JZ-GTE (turbo), they are not cross-compatible.
Radium fuel rail upgrade#
Radium has released a fuel rail upgrade for the NON-TURBO Toyota 2JZ-GE engines. Toyota 2JZ-GE Fuel Rail by Radium Engineering
Wideband / Oxygen Sensors & Accessories. Mandrel Bent Pipes & Fabrication Components. Three 8AN ORB ports allow easy fuel plumbing and room for fuel system accessories.Ģ0-0444 MAZDA INJECTOR SEAT, 16MM, 1 PIECE $14.95Ģ0-0445 FUEL RAIL, TOP FEED CONVERSION, MAZDA 13B PRIMARY $129.95Ģ0-0446 FUEL RAIL, MAZDA 13B-RE SECONDARY $169.95Ģ0-0447 FUEL RAIL, TOP FEED CONVERSION, MAZDA 13B-REW SECONDARY $199.95Ģ0-0464 FUEL RAIL, TOP FEED CONVERSION, MAZDA 20B-REW PRIMARY $189.95Ģ0-0465 FUEL RAIL, MAZDA 20B-REW SECONDARY $239.95Ģ0-0466 FUEL RAIL, MAZDA 20B-REW SECONDARY, 6-PORT $239. Fuel injector compatibility is detailed on the product page. The two small plugs included are used to plug the two middle injector ports when used in 2-injector configuration. This fuel rail has a unique feature that allows it to be used on the OEM 13B-REW 2-port intake manifold or on 4-port aftermarket manifolds. 20-0447 – FUEL RAIL, TOP FEED CONVERSION, MAZDA 13B-REW SECONDARY The rail is equipped with three 8AN ORB ports for fuel plumbing and other accessories such as a pulse damper or OEM Fuel Temp sensor. This fuel rail accommodates stock or aftermarket fuel injectors on the 13B-RE in the secondary position. The three 8AN ORB ports on the fuel rail can be used for fuel plumbing and fuel accessories, such as the 20-0176 pulse damper shown below.Ģ0-0446 – FUEL RAIL, MAZDA 13B-RE SECONDARY Injector seats are included with the kit, and fitment is limited to 34mm height top feed injectors. This small fuel rail allows installation of top feed injectors on the 13B in the primary position, right on the engine. Three 8AN ports are available for fuel plumbing and fuel accessories.Ģ0-0445 – FUEL RAIL, TOP FEED CONVERSION, MAZDA 13B PRIMARY Injector compatibility is limited to 60mm tall injectors. 
This fuel rail is also for the 20B-REW, but for aftermarket intake manifolds that feature 6 injectors. More information can be FOUND HERE 20-0466 – FUEL RAIL, MAZDA 20B-REW SECONDARY, 6-PORT Once again, the fuel rail has three ports, each threaded 8AN ORB. It is compatible with the OEM top feed injectors (shown below), but injector seats are also included for compatibility with aftermarket top feed injectors. This secondary fuel rail kit compliments the 20-0464 primary kit. 20-0465 – FUEL RAIL, MAZDA 20B-REW SECONDARY
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