RADIUM Engineering 20-1511 Fuel Pump Hanger for MK4 Supra Ti Automotive E5LM

The RADIUM Engineering 20-1511 is a drop-in replacement fuel pump hanger designed specifically for the 1993-1998 Toyota MK4 Supra (JZA80) and engineered to accommodate Ti Automotive E5LM brushless fuel pumps. This billet aluminum hanger allows installation of 1-2 Ti Automotive E5LM pumps or a combination of brushless and brushed pumps without requiring permanent modification to the fuel access cover.

Advanced Fuel Starvation Protection:

The RADIUM system addresses a critical weakness in the OEM fuel system by incorporating a unique venturi-effect siphon jet pump. This mechanical pump continuously draws fuel from outside the sub-tank and distributes it directly to the pump inlets, ensuring the sub-tank remains full during aggressive driving, cornering, and acceleration. The redesigned siphon system eliminates restriction on the return line while effectively scavenging fuel, allowing safe use of higher-flowing pumps without inducing fuel pressure issues.

Key Features:

• Designed specifically for Ti Automotive E5LM brushless fuel pumps
• Maximum capacity: 2 E5LM brushless pumps (due to pump height)
• 8AN male fitting on 10AN ORB threaded pump outlet for low-profile plumbing
• 6AN male fitting on 8AN ORB threaded return port
• High-flow integrated check valve maintains fuel pressure after engine shutdown
• Custom stainless steel electrical studs handle high current demands
• Barb fittings included for OEM return and vent hose reconnection
• OEM fuel level sensor mounting provisions
• E85 and exotic fuel compatible with fuel-resistant submersible tubing and ETFE insulated wiring
• Anodized aluminum construction with stainless hardware
• Integrated pump inlet filtration

Technical Note: The venturi jet pump consumes 15-45 liters per hour of fuel flow depending on fuel pressure. This consumption must be factored into fuel pump sizing calculations to ensure adequate flow to the engine.

What's Included: Fuel hanger assembly, 8AN male outlet fitting, 6AN male return fitting, 8.5mm barb for OEM return, 6.5mm barb for OEM vent, venturi siphon jet pump, fuel-resistant submersible tubing, ETFE insulated wiring, stainless hardware, and pump inlet filtration. Fuel pumps, pump mounting brackets (14-0543), and pump basket kits (BKS1001) sold separately.