






Radium Engineering Fuel Hanger Surge Tank for Chevrolet Corvette C8 2020+ - Pumps Not Included
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Description
Radium Fuel Hanger Surge Tank, Chevrolet Corvette C8 (2020+) - Pumps Not Included
Application: Chevrolet Corvette C8 (2020+) – RH fuel tank
Part Type: In-tank fuel hanger surge tank (1-3 pumps)
Part Number: 20-1111
The Radium Fuel Hanger Surge Tank allows 1, 2 or 3 aftermarket fuel pumps to be run in the stock RH fuel tank of the 2020+ Corvette C8, installing on the side opposite the OEM pump module. The 20-1111 version suits the Ti Automotive E5LM brushless pump.
It can be configured three ways: as a true surge tank (direct injection only, or direct plus port injection), as a merged hanger for direct injection only, or as isolated direct and port injection systems. A venturi siphon jet pump draws fuel from outside the collector to the pump inlets (using 15-45 LPH depending on fuel pressure – allow for this when sizing pumps), while the one-piece anodised collector box is kept full by three 355 LPH one-way fill valves and fuel returning from the regulator. The 10AN ORB feed port has a low-profile 8AN male fitting, the return has a low-profile 6AN male fitting, and a 3/8in SAE quick connect is supplied for surge tank use.
Key Features
- 1-3 Pumps: Run one, two or three aftermarket pumps in the RH tank
- Three Configurations: Surge tank, merged hanger, or isolated DI and PI systems
- Starvation Protection: Venturi jet pump plus three 355 LPH one-way fill valves
- One-Piece Collector: Anodised aluminium collector box keeps fuel around the pump inlets
- Low-Profile Fittings: 10AN ORB outlet with 8AN male fitting; return with 6AN male fitting
- Lift Pump Port: 6AN ORB lift pump port with quick connect
- Brushless Compatible: Suits brushless fuel pumps
- High-Current Electrical: Anti-rotation stainless studs, nonconductive acorn nuts, ETFE wiring
What's Included
- 8AN male fitting for the pump outlet
- 6AN male fitting for the aftermarket return
- 8.5mm barb for the OEM return
- 6.5mm barb fitting for the OEM vent
- OEM fuel sensor mount
- Venturi siphon jet pump
- Fuel-resistant submersible tubing
- ETFE-insulated wiring
- Pump inlet filtration
- 6AN ORB plug
- Stainless steel hardware
Optional Parts
- Radium Fuel Pump Inlet Filter Sock - 19mm (14-0543) – filter sock Radium specifies for E5LM brushless pumps
- Radium DIY Fuel Pump Hard Wiring Kit (17-0031) – one per aftermarket pump; upgraded wiring recommended for full pump power
- Radium MPR RA Multi Port FPR Fuel Pressure Regulator (20-1100-00 / 20-1100-01) – multi-port regulator accepted by the 20-1279 FPR mount
- Radium DFPR, Dual Fuel Pressure Regulator (20-1102) – dual regulator option for port-injection setups
Important Notes
- Fuel pumps are not listed in Radium's kit contents
- For Walbro GSS342 / AEM 50-1200 see 20-1110; for Walbro F90000-series, Protec, Fuelab or DeatschWerks DW810 pumps see 20-1112
- The rear subframe / drivetrain must be removed to access the OEM tanks – the engine is commonly removed as well
- Each pump needs its own relay and fuse – order one wiring kit per pump (qty 1, 2 or 3)
- The OEM FPR delete (Radium 20-1278) is only required for the merged configuration
- Radium also offers a C8 FPR mount (20-1279, accepts 20-1100-00 / -01 or 20-1102 regulators) and an RWD fuel filter mount (20-1280) – contact iilumolab for availability
- Radium's listing does not specifically mention right-hand-drive (Australian-delivered) C8s – confirm fitment with iilumolab before ordering
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Chevrolet Corvette C8 (2020+) – RH fuel tank
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.

