Description

COMPATIBILITY

1990-1995 Mazda/Eunos Cosmo with 6-port intake manifold

OVERVIEW

This Radium Engineering secondary fuel rail is for aftermarket 6-port intake manifolds that are produced for the Mazda 20B-REW rotary engine. 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.

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, 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.

FUEL INJECTOR COMPATIBILITY

This fuel rail requires the use of a universal top feed injector. It requires 60mm tall height injectors with 14mm upper and lower o-rings as shown.

The following injector part numbers are examples of compatible fitments. Many other injector manufacturers offer compatible injectors not listed. Consult your preferred injector manufacturer for more details.