RADIUM ENGINEERING fuel rail for BMW S54 engine, OEM fitment

$259.95$347.80

Radium Engineering OEM fitment fuel rail for BMW S54 Engine, M3/Z3/Z4

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This big bore fuel rail is machined, polished, laser etched and then anodized for a stealth surface finish. It is compatible with OEM and aftermarket fuel injectors. It features a large 0.65″ internal bore with 3/4″-16 female threads (-8AN O-ring port) at each end to accept a variety of adapter fittings for custom high flow fuel system builds. It is compatible with all fuel types including popular alcohol mixtures such as E85. It is a direct bolt on for all S54 BMW engines including:

2001-2006 BMW M3
2001-2002 BMW Z3 M Coupe
2001-2002 BMW Z3 M Roadster
2006-2008 BMW Z4 M Coupe
2006-2008 BMW Z4 M Roadster
2002-2011 Weismann Roadster MF3

All configurations include a 3/8″ NPT plug for the center port and a 3/4″-16 plug for the front port. Also included are stainless steel mounting tabs and hardware preassembled using aluminum rivet nuts.

 

Configurations:

OEM Configuration
This configuration includes all the parts required to replace the OEM fuel rail. A -6AN adapter and E85 compliant -6AN PTFE replacement fuel feed hose is included which connects to the BMW fuel pressure regulator using a billet adapter, as shown below. This is an excellent direct bolt-in upgrade for a stock or slightly modified fuel system.

 

 

Optional Add-Ons

Front Port:
The front port of the Radium fuel rail is machined with 3/4″-16 (-8AN) threads. Instead of using the included plug, a billet aluminum adapter can be installed enabling the use of a Radium fuel pressure gauge, as shown. More info on the Radium Fuel Pressure Gauge can be seen HERE.

Center Port:
A 3/8″ NPT port is machined in the center port.  A standard 3/8″ NPT plug is included with the kit. However, an optional fuel pulse damper can be installed alternatively. A pulse damper absorbs injector pulses which can cause fluctuation in fuel pressure, especially with high flowing aftermarket fuel injectors. See picture below:

Weight 10 lbs
Add pulse damper?

No, Yes (+$39.95)

Add pressure gauge?

No, Yes (+$47.90)