Radium Engineering RA-Series FPR Conversion Kit, Green

Radium RA-Series FPR Conversion Kit, Green

Application: Radium adjustable fuel pressure regulators – DMR, MPR and FPR damper (all generations), and Radium hangers / surge tanks with an integrated regulator
Part Type: FPR conversion kit, RA-Series
Part Number: 20-1101-01

This Radium Engineering kit converts previous Radium adjustable fuel pressure regulators to the RA-Series design, adding the newest features and performance improvements to older regulators.

RA-Series regulators offer tool-less pressure adjustment – no jam nut or set screw, just turn the knob – with detents that give haptic feedback and roughly 1psi (+/-0.5psi) per click. A redesigned single stainless steel return orifice generates laminar flow for better pressure stability, and the 360 degree swivelling, double O-ring sealed vacuum reference port can be pointed in any direction without tools.

Key Features

• Tool-less Adjustment: Turn the knob; detents give about 1psi (+/-0.5psi) per click
• Minimum Pressure: 1.3bar (18.5psi)
• Maximum Pressure: Not limited by the regulator – set by the pump relief valve or pump controller current limit
• Vacuum Reference: 1:1 rising rate, 360 degree swivel, double O-ring sealed, four interchangeable #10-32 fittings
• Return Orifice: Single stainless steel orifice for laminar flow and stability
• Fuel Compatibility: All petrol types (unleaded, leaded, oxygenated, premixed) and alcohol blends incl. methanol, ethanol and E85

What's Included

• Upper rotating assembly
• 5mm (3/16in) barbed vacuum fitting
• Vacuum plug fitting (returnless)
• 1/4in push-to-connect vacuum fitting
• 3AN male vacuum fitting
• Anodised half-moon retainers
• Stainless steel return orifice
• Stainless steel button head screws
• Stainless steel spring
• Fluorosilicone diaphragm

Important Notes

• Use a wicking medium-strength threadlocker on the vacuum fitting
• Radium's instructions: return orifice 4.0Nm (35 in-lb), top cap screws 0.7Nm (6 in-lb) in a cross pattern; do not reuse the old spring hat
• A rapid fall in fuel pressure after the pump shuts off is normal for high-flow aftermarket regulators and is not a defect – pressure resets as soon as the pump runs
• Long cranking or slow pressure build is unrelated to the regulator – check for feed line drain-back (e.g. a jet pump leak or missing pump check valve)
• The vacuum plug is for returnless systems where the regulator cannot be vacuum referenced
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• Radium Direct Mount Regulator (DMR) – all generations
• Radium Multi-Port Regulator (MPR) – all generations
• Radium Fuel Pressure Regulator Damper – all generations
• Radium hangers and surge tanks with integrated regulator

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.