Radium: Fuel Rail Top Feed Conversion Mazda 26B Primary
The Radium Engineering high flow primary fuel rail is for a Mazda 26B 4-rotor engine. Thermal insulating spacers and washers are included with stainless steel hardware to prevent thermal energy from conducting heat into the fuel.
The included 14mm lower injector seats were designed specifically to be compatible with or without the OEM diffusers in place. They feature FKM O-rings making them suitable for boosted applications. The new green injector seats were designed to extend the O-ring past the air assist injector holes in the iron.
Universal fuel injectors with the dimensions shown below are required when installing this fuel rail. The injectors must have this 34mm height with 14mm o-rings.
The fuel rail has four ports that are tapped for 8AN ORB fittings. The extra center ports allow additional fuel system accessories such as the OEM fuel temperature sensor (using 14-0421), a pressure transducer, Radium fuel pulse damper etc.
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