Radium Engineering MPR (Multi-Port Regulator) – Universal

The Radium Engineering Multi-Port Regulator (MPR) is a versatile, high-performance solution designed for both simple and complex fuel systems. Whether you're combining dual pumps into a single feed, splitting a feed line between dual fuel rails, or supporting a single pump setup, the MPR delivers unmatched flexibility with compact packaging and precise pressure control.

Key Features:

• Supports multiple plumbing configurations: flow-through, deadhead, or hybrid
• Tool-less fuel pressure adjustment with haptic detents (1 psi per click)
• Laminar flow return orifice for outstanding pressure stability
• Rotating 360° vacuum reference port with 4 interchangeable fittings
• Integrated dual return ports aligned with pressure ports – no elbows needed
• Universal mounting with included bracket or M6 through-body holes
• Compatible with gasoline, ethanol (E85), methanol, and oxygenated fuels

Fuel Pressure Range:

• Minimum: 18.5 psi (1.3 bar)
• Maximum: Dependent on fuel pump system (not internally limited)

Vacuum Reference Options (Included):

• Barbed fitting – 3/16" (compatible with 5/32", 3/16", and 7/32" hose)
• 3AN male fitting
• Push-to-connect fitting – 1/4" hard plastic tube
• Vacuum plug – for returnless or constant-pressure setups

Included Components:

• Main regulator assembly (black or green)
• Mounting bracket with stainless hardware
• 4 vacuum reference fittings
• (2) 6AN ORB plugs
• (1) 8AN ORB plug
• (3) 6AN ORB to 6AN male adapters
• (1) 8AN ORB to 8AN male adapter

Designed for maximum adaptability and race-ready performance, the Radium MPR is ideal for both modern returnless fuel systems and traditional return-style setups. Its compact design, industry-first rotating vacuum port, and ultra-stable pressure control make it a premium choice for tuners and engine builders alike.