Description

COMPATIBILITY

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

OVERVIEW

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 etched for a high quality surface finish.

For injector height flexibility and thermal insulation, machined insulating spacers are included. Reference instruction manual for more information. The fuel rails are compatible with all fuel types including popular alcohol mixtures such as E85.

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

Want a complete engine bay plumbing kit that includes regulator, lines and fittings? Click 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.

20-0763-02 FUEL RAILS, TOP FEED CONVERSION, SUBARU EG33

OVERVIEW

The EG33 H-6 engine is found in the Subaru Alcyone SVX. Each fuel rail features three 8AN ORB threaded ports (6 total).

COMPATIBILITY

Subaru Alcyone SVX

FUEL INJECTOR COMPATIBILITY

Do NOT purchase 'WRX Fitment' injectors. These rails require a universal fuel injector. Compatible fuel injectors must have 14mm O-rings top and bottom and must match the 34mm height dimensions shown below.

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

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.

INCLUDES

Black Anodized Laser Etched Aluminum Fuel Rails
Black Anodized and Laser Etched 26mm Injector Seats
Black Anodized Fuel Rail Mounts
Stainless Steel Mounting Hardware

20-0764-02 FUEL RAILS, SUBARU PHASE-I EZ30

COMPATIBILITY

00-04 Subaru Outback H6
00-03 Subaru Lancaster 6
02-03 Subaru Legacy GT30
02-03 Subaru Legacy RS30
2002 Subaru Blitzen 6 Wagon

OVERVIEW

These H-6 fuel rails are for the original Subaru EZ30 'Phase-I' flat 6 engine. This engine is denoted by having a single exhaust port per bank. These engines also incorporate the Subaru air-assist fuel injection system. Each fuel rail has three 8AN ORB threaded ports (6 total). To reuse the OEM FPR, use 20-0301.

FUEL INJECTOR COMPATIBILITY

OEM Injectors - The Radium Engineering fuel rail features 11mm injector bores making it compatible with the factory Subaru EZ30 Phase-I 'air-assist' fuel injectors. No modifications are needed. If preparing to use aftermarket fuel injectors, read below.

Aftermarket Injectors - The Phase-I EZ30 uses air-assist emissions equipment. These engines use a unique OEM fuel injector that is not replicated in the aftermarket. In order to use universal aftermarket fuel injectors, these cylinder heads require the provided Radium injector seats. When these injector seats are installed into the air-assist cylinder heads, an aftermarket injector that is 48mm long with 11mm upper O-ring and 14mm lower O-ring must be used.

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

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

Fuel Injectors are NOT included and must be purchased elsewhere.

INCLUDES

Black Anodized Laser Etched Aluminum Fuel Rails
Subaru Air Assist Injector Seats
Thermal Insulating Press-In Spacers, 11mm
Stainless Steel M8x1.25 Mounting Bolts

20-0765-02 FUEL RAILS, SUBARU PHASE-II EZ30 AND EZ36

OVERVIEW

These H-6 fuel rails are for the EZ30 (Phase-II) and EZ36 flat 6 engines. Each fuel rail has three 8AN ORB threaded ports (6 total). These rails are compatible with AVCS with ample clearance with the nearby AVCS solenoid.

NOTE

PHASE-II EZ30 ENGINE (ONLY). The front fuel rail port on the RH side cylinder head is very close to the AVCS. This port must be plugged using 14-0150 8AN ORB plug.

COMPATIBILITY

04-09 Subaru Legacy 3.0R
04-09 Subaru Outback 3.0R
10-19 Subaru Legacy 3.6R
10-19 Subaru Outback 3.6R
06-14 Subaru Tribeca

FUEL INJECTOR COMPATIBILITY

This fuel rail is compatible with factory or OEM equivalent fuel injectors. The machined injector ports are designed for 11mm upper injector O-rings. This means that the injectors being installed must match the OEM height and o-ring dimensions. If upgrading fuel injectors, consult your aftermarket injector supplier for details. Radium Engineering cannot specify any further injector dimensions other than stating "OEM equivalent".

INCLUDED