Description

COMPATIBILITY

Nissan R33 Skyline GTS-T RB25DET

This fuel rail is for the Nissan RB25DET (non NEO) engine ONLY. This is commonly found in the R33 Skyline GTS-T among others. For the RB25DET NEO fuel rail, go HERE.

OVERVIEW

Manufactured with a large 0.69" internal bore, the fuel rail can support all any engine power requirements. The Radium fuel rail converts the OEM side feed fuel injector setup to top feed injectors, allowing the use of a wide variety of aftermarket fuel injectors available on the market. This kit is compatible with E85. The fuel rail has four 8AN ORB ports that can be used for fuel inlet, outlet or for plumbing option accessories. All unused ports must be plugged. The rail is extruded and CNC machined from solid 6063 aluminum and black anodized for a high quality surface finish.

FUEL INJECTOR COMPATIBILITY

The kit includes 2 sets of spacers to suit two specific height injectors. These thermally insulating spacers offer excellent resistance to heat transfer. The taller spacers of the two allow the use of a universal 48mm tall injector with 14mm upper and lower o-rings. The shorter spacers allow the use of the short 34mm injector with the same o-rings. Refer to the dimensional drawings below

Many injector manufacturers will have applications with these dimensions. Here are a few examples of applicable injector part number from Injector Dynamics:

48MM WITH TALL SPACERS

Injector Dynamics ID1050-XDS-48-14-14
Injector Dynamics ID1300-XDS-48-14-14
Injector Dynamics ID1700-XDS-48-14-14
Injector Dynamics ID2600-XDS-48-14-14

34MM WITH SHORT SPACERS

Injector Dynamics ID1050-XDS-34-14-14
Injector Dynamics ID1300-XDS-34-14-14
Injector Dynamics ID1700-XDS-34-14-14
Injector Dynamics ID2600-XDS-34-14-14

Fuel injectors are NOT included and must be purchased elsewhere.

PORTS AND FITTINGS

The fuel rail ports are tapped for 8AN ORB fittings.

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.