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Multiple Subaru Fitments Fuel Rail Plumbing Kits by Radium Engineering
These plumbing kits are designed to compliment Radium Engineering Subaru EJ fuel rail installations. Both kits interface with the factory feed and return hard lines in the engine bay (near the LH strut tower) and provide all the underhood fuel plumbing. All necessary fittings and hoses are included, along with an adjustable high-flow fuel pressure regulator. Two kits are offered; one that feeds the fuel rails in series, and another that feeds the fuel rails in a parallel configuration. Both kits perform equally well. The end decision is based on personal preference. Scroll down for details on each kit.
This kit interfaces with the factory hard lines near the LH strut tower using SAE quick-connects or older hose barb connections. An adjustable Radium Direct Mount Regulator (DMR) and Radium 0-100psi fuel pressure gauge are included. The fuel pressure gauge can be installed at any of the 6AN junctions before the regulator using the included adapter. The 6AN swivel fuel rail fittings are low profile making them ideal for the tight spaces associated with the EJ motor. The variety of reuseable PushLok hose ends permit customizing (such as adding a flex-fuel sensor) making installation quick and painless. The included 6AN fuel hose can be cut with standard tools and assembled without special skills. Unlike standard low-quality rubber fuel hose that degrades with alternate fuels, the provided hose is resistant to all fuels including E85. The contents of the 20-0578 kit are shown in the photo below.
Because the hoses and fittings are consolidated, the parallel kit is a good option for cleaning up the engine bay. Each fuel rail is fed as shown in the photo above. The feed and return lines enter the Radium Multi-Port Regulator (MPR) from the rear and output through the front to the fuel rails.
Features
- Includes all necessary fittings are hardware
- Parallel or Series options are available
- Compatible with different fuel types like E85, methanol, etc.
- Adjustable Radium Direct Mount Regulator (DMR) and Radium 0-100psi fuel pressure gauge are included
Benefits
- Replaces old fuel delivery components that may be worn out
- Easily customizable