RADIUM AUTO Fuel Rails, Top Feed Conversion, Subaru EJ #20-0568-02

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.

The fuel rail ports are tapped for 8AN ORB.

PORTS AND FITTINGS

The “conversion” fuel rails convert the OEM side feed fuel injector setup to top feed allowing the use of high flow fuel injectors (not included). The fuel rail injector bores are 14mm ID. Manufactured with a large internal bore, the fuel rails can support all necessary engine power requirements. They are CNC machined from solid 6061 aluminum, black anodized, and laser engraved for a high quality surface finish. The fuel rails are compatible with all fuel types including popular alcohol mixtures such as E85. Machined press-fit phenolic spacers are included to insulate intake manifold heat transfer. Two sets of spacers are included to accomodate popular 34mm or 48mm height universal fuel injectors from popular manufacturers. DO NOT purchase “WRX Fitment” injectors. See more information about injector fitment below.

Reference the chart below to be sure the proper fuel rails are ordered.

The four billet injector seats are anodized and laser etched and provide a sealed receptacle for top feed fuel injectors. The seats are designed for injectors with 14mm lower O-rings.

20-0568-02 FUEL RAILS, TOP FEED CONVERSION, SUBARU EJ

For the 20-0568-02 conversion fuel rails, 2 sets of the press-fit phenolic spacers (8 total) and matching hardware are included to suit different height fuel injectors. Use the tall spacers and longer mounting bolts to accomodate this size injector:

Below are some of the many fuel injectors that are a direct fitment with Radium 20-0168-02 Fuel Rails when using the tall spacers:

Injector Dynamics ID1000-48-14-14
Injector Dynamics ID1050x-48-14-14
Injector Dynamics ID1300-48-14-14
Injector Dynamics ID1700-48-14-14
Injector Dynamics ID2000-48-14-14

Use the shorter spacers and mounting bolts to accomodate this size injector:

Below are some of the many fuel injectors that are a direct fit when using the short spacers:

Injector Dynamics ID1050x-34-14-14
Injector Dynamics ID1300-34-14-14
Injector Dynamics ID1700-34-14-14
Injector Dynamics ID2000-34-14-14

20-0568-02 KIT INCLUDES:

-Black Anodized Laser Etched Aluminum Fuel Rails (x2)
-Green Anodized and Laser Etched 22mm Injector Seats (x4)
-Phenolic Thermal Insulating Press-In Spacers, 27mm (x4)
-Phenolic Thermal Insulating Press-In Spacers, 15mm (x4)
-Phenolic Thermal Insulating Press-In Bolt Washers (x4)
-Stainless Steel M8x1.25 Mounting Bolts, Long (x4)
-Stainless Steel M8x1.25 Mounting Bolts, Short (x4)