Radium Engineering FPRD-RA Fuel Pressure Regulator Damper Universal

The Radium Engineering FPRD-RA is a high-performance fuel pressure regulator featuring an integrated 1:1 fuel pulse damper. Designed for motorsport and high-performance street applications, it delivers outstanding pressure control, broad fuel compatibility, and versatile installation options.

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New Radium Adjustable Fuel Pressure Regulators for 2023

Whether upgrading for race use, E85, or high-boost builds, the FPRD-RA offers unmatched reliability, compact mounting flexibility, and innovative tool-less adjustment.

Key Features

• Compact Mounting: Two M6x1mm threaded mounting holes with an anodised aluminium bracket included. Can be mounted in any orientation, including upside down.

• Flexible Plumbing: Large 10AN ORB ports for side inlet and bottom outlet. Includes -6AN and -8AN male adapter fittings for easy system integration.

• Auxiliary Port: 1/8" NPT port for optional fuel pressure or temperature sensors. Pre-impregnated PTFE plug included.

• Fuel Pulse Damper: Integrated 1:1 damper stabilises pressure fluctuations from pumps, injectors, and rails.

• Tool-less Pressure Adjustment: External adjustment knob with incremental detents for precision tuning (1 psi per click).

• 360° Swivelling Vacuum Port: Industry-first design with a double O-ring seal. No tools required for repositioning.

• Wide Fuel Compatibility: Compatible with all types of petrol (unleaded, leaded, oxygenated) and alcohol-based fuels including E85 and methanol.

• Optimised Pressure Stability: Stainless steel return orifice enhances laminar flow and maintains consistent pressure.

Pressure Range

• Minimum Pressure: 18.5 psi (1.3 bar)

• Maximum Pressure: Dependent on the fuel pump’s relief valve or controller settings.

Fuel System Notes

• Must be installed after the fuel rail (not suitable for dead-head systems).

• For dead-head applications, use Radium’s Multi-Port Regulator (MPR).

• Medium-strength threadlocker is recommended for vacuum fitting installation.

• Not intended for use on the low-pressure side of mechanical fuel pumps.

Vehicle Compatibility

• Universal fitment for aftermarket fuel systems.

• Ideal for high-horsepower street, track, and motorsport vehicles.

Pairs Well With

• Radium Engineering Fuel Pressure Gauge - Universal - 0-100psi (0-6.9 BAR)
• Radium Engineering Fuel Filter with Check Valve - Universal

Need help confirming fitment? Contact our team at sales@chicaneaustralia.com.au.