Radium Engineering Fuel Rail – Mazda 13B-RE Secondary

This Radium Engineering high flow secondary fuel rail is designed for the OEM lower intake manifold found on the 13B-RE rotary engine originally used in the 1990–1995 Mazda/Eunos Cosmo. CNC machined from aluminum and finished in black anodize, the rail is compatible with all fuel types including E85 and supports high-horsepower builds.

Vehicle Compatibility:

• 1990–1995 Mazda/Eunos Cosmo (13B-RE)

Overview:

The fuel rail features three 8AN ORB ports for flexible plumbing setups. The center port allows integration of additional components such as:

• OEM fuel temperature sensor (with Radium 14-0421 adapter)

• Pressure transducer

• Radium fuel pulse damper

Thermal insulating spacers and washers are included to reduce heat transfer into the fuel rail. The included 14mm lower injector seats are compatible with or without OEM diffusers and use FKM O-rings for reliable sealing in boosted applications.

Fuel Injector Compatibility:

• Without spacers and injector seats:
  OEM Mazda top-feed fuel injectors

• With included spacers and injector seats:

  • Injector Dynamics ID1050-60-11-14

  • Injector Dynamics ID1300-60-11-14

  • Injector Dynamics ID1700-60-11-14

  • Injector Dynamics ID2000-60-11-14

  • Injector Dynamics ID2600-60-11-14

Note: Fuel injectors are not included and must be purchased separately.