radium ENGINEERING Dual Port Injection Fuel Rails (SUBARU EJ25)

PORTS AND FITTINGS
The fuel rail end ports are tapped for 10AN ORB. The top ports are tapped for 8AN ORB.

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.

These Radium dual port injection (DPI) fuel rails were designed specifically for the Radium fuel rail housings and are NOT compatible with any others on the market. Manufactured with large 10AN ORB end ports, the fuel rails can support all necessary engine power requirements.

The top auxiliary ports are threaded with 8AN ORB for ancillary accessories. The rails are CNC machined from solid 6061 aluminum, black anodized, and laser engraved for a high quality surface finish. They are compatible with all fuel types including alcohol mixtures such as E85 and is a necessary modification for those using methanol on high powered engines.

Machined press-fit spacers are included to thermally insulate heat transfer.

FUEL INJECTOR FITMENT

Each fuel rail has 4 injector ports that are machined to permit injectors with 14mm O-rings.

Primary Lower Fuel Injectors
Using the provided adapters, both OEM Subaru or 60mm Bosch EV14 style fuel injectors can be used. To reuse the OEM Subaru injectors, the provided top hat must be installed over the upper OEM injector O-ring.

To use aftermarket 60mm Bosch EV14 injectors, the provided injector seat must be installed over the lower injector O-ring.

Secondary Upper Fuel Injectors
Only 34mm Bosch EV14 style fuel injectors can be used. If the upper and lower billet caps are pulled off, the base injector is a 34mm Bosch EV14 which can be used.

INCLUDED
-Black Laser Etched Aluminum Fuel Rails (x2)
-Injector Seats for Aftermarket Injectors (x4)
-Injector Hats with Filter Screens for OEM Injectors (x4)
-Thermal Insulating Press-In Spacers (x4)
-Stainless Steel Hardware
-FKM O-ring Seals