Radium Engineering Fuel Pressure Regulators
Radium Engineering Fuel Pressure Regulators in Australia
A fuel pressure regulator holds fuel pressure at the injectors steady and returns extra fuel to the tank. Radium Engineering makes regulators for every kind of build, from compact direct-mount units that bolt onto a fuel rail to dual and multi-port regulators for high-flow systems, plus mounts, adaptors and service parts.
Shop by Product Type
- FPR-D and FPRD-RA: a regulator and pulse damper in one housing.
- DMR direct mount regulator, which bolts straight onto the rail, with a remote mount adapter kit.
- MPR multi-port regulator and DFPR dual fuel pressure regulator for high-flow systems.
- RA-Series FPR kits and conversion kits, including Bosch top-style replacements.
- Mounts, adaptors and service parts: FPR mounts, FPR/FPD adaptors, springs, diaphragms and orifices.
Choosing the Right Part
Size the regulator to your fuel flow. A single-pump street car is very different from a twin-pump E85 build.
Decide where it mounts: on the rail (DMR), next to the rail on a bracket, or near the surge tank.
Check the port sizes, such as 8AN ORB, and the bore size of any adaptor against your rail.
Installation & What You'll Need
The regulator needs a feed, a return line to the tank and a vacuum/boost reference from the intake manifold. Set the base pressure with a gauge at idle with the reference line off, then refit it. Installation by a professional is recommended.
FAQ
What does the FPR-D do?
It is a fuel pressure regulator and pulse damper in one, which saves space and smooths the pressure pulses from the injectors.
Do I need a return line?
Yes. These regulators bypass extra fuel back to the tank, so the system needs a return line.
Can I rebuild a Radium regulator?
Radium sells diaphragms, springs and orifices for many of its regulators, listed here.
More Radium Engineering
Need help choosing? Contact our team at sales@chicaneaustralia.com.au.
