COMPATIBILITY

• 92-02 Mazda RX7 FD3S

The rail can be installed with the Elite Rotary Shop 4-port intake manifold, but you will need to purchase 2 extra injector seats, found HERE.

This rail can be installed with the Xcessive Manufacturing 4-port intake manifold using the included 11mm insulating spacers.

OVERVIEW

This Radium Engineering secondary fuel rail is for the Mazda 13B-REW rotary engine found in the 92-02 Mazda RX7 FD3S.

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. The three 8AN ORB ports are compatible with these fittings HERE. The extra center port allows additional fuel system accessories such as the OEM fuel temperature sensor (using 14-0421 shown below), a pressure transducer, Radium fuel pulse damper, etc.

FUEL INJECTOR COMPATIBILITY

Universal fuel injectors with the dimensions shown below are required when installing this fuel rail. The injectors must have this 60mm height with 14mm o-rings.

PORTS AND FITTINGS

The fuel rail ports are tapped for 8AN ORB fittings. The extra center port allows additional fuel system accessories such as the OEM fuel temperature sensor using part number 14-0421, a pressure transducer, Radium fuel pulse damper, etc.

• 8AN ORB Adapter Fittings can be found HERE
• 8AN ORB Direct Mount Regulators can be found HERE
• 8AN ORB Fuel Pulse Dampers can be found HERE
• Fuel Pressure Gauge Adapters can be found HERE

Appropriate fittings must be selected based on the specific application. Ample space around the fuel rail port(s) is necessary for larger accessories such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers. To verify clearance, the dimensional drawings on the product pages can be used as a reference guide.