PORTS AND FITTINGS
The fuel rail ports are tapped for 8AN ORB.
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.
Reference the chart below to be sure the proper fuel rails are ordered.
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.
20-0763-02 FUEL RAILS, TOP FEED CONVERSION, SUBARU EG33
VEHICLE COMPATIBILITY
Subaru Alcyone SVX
FUEL INJECTOR COMPATIBILITY
Do NOT purchase "WRX Fitment" injectors. See more information about injector fitment below.
Below are some of the many fuel injectors that are a direct fit:
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
OVERVIEW
The EG33 H-6 engine is found in the Subaru Alcyone SVX. Each fuel rail features three 8AN ORB threaded ports (6 total).
INCLUDES
-Black Anodized Laser Etched Aluminum Fuel Rails (x2)
-Black Anodized and Laser Etched 26mm Injector Seats (x6)
-Black Anodized Fuel Rail Mounts (x4)
-Stainless Steel M6x1 Fuel Rail Mount Bolts (x8)
-Stainless Steel M8x1.25 Mounting Bolts (x4)
20-0764-02 FUEL RAILS, SUBARU PHASE-I EZ30
VEHICLE 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
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. The following universal injectors have been verified to be compatible. However there are others on the market that will work that are not listed here.
Injector Dynamics ID1050-XDS-48-11-14
Injector Dynamics ID1300-XDS-48-11-14
Injector Dynamics ID1700-XDS-48-11-14
Injector Dynamics ID2600-XDS-48-11-14
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.
INCLUDED
-Black Anodized Laser Etched Aluminum Fuel Rails (x2)
-Subaru Air Assist Injewctor Seats (x6)
-Thermal Insulating Press-In Spacers, 11mm (x4)
-Stainless Steel M8x1.25 Mounting Bolts (x8)
20-0765-02 FUEL RAILS, SUBARU PHASE-II EZ30 AND EZ36
VEHICLE 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. If upgrading fuel injectors, consult your aftermarket injector supplier for details. Radium Engineering cannot specify any further injector dimensions other than stating ‘OEM equivalent’.
OVERVIEW
These H-6 fuel rails are for the EZ30 (Phase-II) and EZ36 flat 6 engines.
As shown below, they are compatible with AVCS.
As shown below, there is 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.
As shown below, each fuel rail has three 8AN ORB threaded ports (6 total).
INCLUDED
-Black Anodized Laser Etched Aluminum Fuel Rails (x2)
-Thermal Insulating Press-In Spacers, 11mm (x4)
-Stainless Steel M8x1.25 Mounting Bolts (x4)
