Radium Direct Mount Fuel Pressure Regulator DMR-RA

The Radium Direct Mount Regulator-Rotating Assembly (DMR-RA) is a compact high performance adjustable EFI fuel pressure regulator.

MOUNTING
This regulator is designed with a unique highly versatile mounting system. It can be mounted directly to a compatible fuel rail port using the included 360 degree swiveling adapter, or mounted remotely away from the fuel rail (using 20-0624). The compact size fits in areas with limited space, without sacrificing performance. 

PLUMBING
The main inlet port on the regulator is female threaded for 6AN ORB. A swiveling double ended adapter (shown below) is included which allows the regulator to be used in any compatible 8AN ORB fuel rail port, such as those found Radium Engineering fuel rails. Other swivel adapters are available but sold separately. 

If mounting the regulator off-rail, other adapters can be screwed into this regulator port (sold separately).

The bottom return port is threaded for 6AN ORB. The provided 90 degree 6AN male fuel return fitting can swivel 360 degrees, permitting a multitude of mounting configurations. Other adapter fittings can be installed in the return port if needed (sold separately).

FUEL PRESSURE ADJUSTMENT
RA-series regulators feature the first tool-less pressure adjustment. A jam nut and set screw are no longer required. With a simple turn of the knob, pressure will be increased or decreased. To aid in adjusting pressure, there are incremental detents that provide haptic feedback to the user. Every detent permits 1psi (+/-0.5psi) of adjustment depending on current fuel pressure.

1:1 RISING RATE VACUUM REFERENCE
RA-series regulators feature a 360 degree swiveling vacuum reference port that is double O-ring sealed. This is the first in the industry. It permits the installer to quickly point the vacuum fitting in any direction with no tools required.

There are 4 interchangeable 10-32 threaded vacuum port fittings provided to cover all scenarios. -3AN Male, Vacuum Plug, 5mm Barb, & Push-To-Conect

FUEL COMPATIBILITY
All RA-series regulators are suitable with all gasoline types including unleaded, leaded, oxygenated, and pre-mixes. Furthermore, they are compatible with alcohol blends of fuel including methanol, ethanol, and E85. 

INCLUDED

• -Main Rotating Assembly
• -5mm Barbed Vacuum Fitting
• -Vacuum Plug Fitting (Returnless)
• -1/4" Push-To-Connect Vacuum Fitting
• -3AN Male Vacuum Fitting
• -6AN Male Swivel (for Return Line)
• -Swiveling Inlet Fitting (for 8AN ORB Fuel Rail)
• -PTFE Impregenated 1/8" NPT Plugs (x2)