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Radium DMR-RA Direct Mount Fuel Pressure Regulator -8 AN ORB Black 20-1623-00
Radium DMR-RA Direct Mount Fuel Pressure Regulator -8 AN ORB Black 20-1623-00
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 6 AN ORB adapters
fittings can be screwed into this regulator port.
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).
This regulator has two 1/8" NPT side port locations that can be used with a pressure gauge, transducer, temperature probe, etc. Two 1/8" NPT plugs are provided.
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. Barbed Fitting: A black zinc-plated 3/16" (5mm) barb machined from high strength steel that is compatible with the following vacuum hoses: 5/32" (4mm), 3/16" (5mm), and 7/32" (6mm).
2. 3AN Male Fitting: A black zinc-plated adapter machined from high strength steel that is compatible with 3AN hose ends.
3. Push-To-Connect: A nickel-plated brass fitting with Buna-N O-rings that is compatible with hard plastic 1/4" OD tubing.
4. Vacuum Plug: A black oxide stainless steel screw that is used to maintain a constant (non dynamic) fuel pressure. Beginning in the mid 1990s, vehicle manufacturers started transitioning to returnless fuel systems to lower EVAP emissions. To keep temperatures lower, these regulators are mounted inside the tank and do NOT have the ability to be vacuum referenced. This plug would be required in this scenario.
NOTE: When installing the vacuum fitting, it is recommended to use a wicking medium-strength threadlocker.
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)
FUEL PRESSURE STABILITY
With years of track and bench testing data, the RA-series regulators have been refined to optimize pressure management. A newly designed single stainless steel return orifice generates laminar flow that enhances stability control.
Minimum Pressure: 18.5psi (1.3bar)
Maximum Pressure: *N/A
*This is rhetorical. The maximum pressure is dependent on the relief valve inside the pump or the maximum current the fuel pump controller allows.
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.
Product Information
Some photos are stock photos and may vary from actual part. Please see complete description of this part to make sure it is the correct part you need. Please carefully check to make sure this will fit your application.
- Professional installation is strongly recommended.
Communication
Excellent communication and customer service is our goal! We are usually available to answer any questions during East Coast business hours Monday thru Friday. If we see your question outside of this timeframe, we will attempt to respond if possible.
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Shipping Terms
We ship daily Monday-Friday, except holidays. Orders generally ship out same or next business day. We ship from various warehouses located around the US. We attempt to ship from the warehouse closest to you to assist in prompt delivery. We offer combined shipping upon request, if the products can be safely packaged together.
- For international orders, we utilize eBay Global Shipping. Please note that the import fees, duties, or taxes are not included in the item price or shipping charge. These charges are the buyer's responsibility.
- Most items cannot be shipped to P.O. Boxes. If you would like to ship to a P.O. box, please contact us before purchase.
- If expedited shipping is desired, please contact us for a shipping quote.
- Items that exceed $500 may ship with a signature required.
Return Policy
All return requests must be made within 30 days of the delivery date of the item(s) ordered. All returned merchandise must be in original packaging, and in new, uninstalled condition. All returns require an RMA (Return Merchandise Authorization).
- We do not accept returns on parts that have been installed.
- Any items that have a warranty issue will be handled by the manufacturer. Please contact us for assistance with warranty issues or manufacturer defects.
About Us
Show N Go Performance is a family owned and operated business located in Florida. We offer a large selection of aftermarket parts from the most trusted manufacturers in the market. Whether it be for street, track, off-road, or a custom build, we offer a wide variety of options. With access to millions of products, we have an ever-expanding parts inventory system, and are constantly doing our best to stay up to date with the latest car culture trends. Our goal is to offer you the right parts at the right prices!
