Radium Engineering Fuel Hanger Surge Tank (FHST) for Audi R8 / Lamborghini Gallardo / Huracan

Radium Fuel Hanger Surge Tank (FHST), Audi R8 / Lamborghini Gallardo / Huracan

Application: Audi R8 (Gen 1 Type 42 and Gen 2 Type 4S), Lamborghini Gallardo LP and Huracan
Part Type: Fuel hanger surge tank (FHST)
Part Number: 20-0860

The Radium Fuel Hanger Surge Tank (FHST) is a drop-in aftermarket fuel system for higher-power builds that works alongside the OEM fuel pump. It can feed port injectors on its own, leaving the OEM pump to supply the direct injection system – on the Huracan and R8 Type 4S this removes the restrictive orifice fittings on the port injection rails.

A surge tank collector in the LH tank keeps a fuel reserve around the aftermarket pump to prevent starvation and cavitation at high power. It is filled by the LH OEM venturi jet pump (flow tested at 302 LPH max), returning fuel from the aftermarket regulator via a diverter, and three one-way fill valves. The OEM pump, filter, regulator, venturi pumps and level sensors are all retained for the stock system.

Key Features

• Drop-In Installation: Fits the LH side of the OEM tank alongside the factory pump
• Surge Protection: Collector keeps fuel around the pump to prevent starvation and cavitation
• Port Injection Supply: Independent supply for port injection, OEM pump keeps feeding the DI system
• Brushless Compatible: Supports popular brushless and brushed pumps
• High-Current Electrical: Custom stainless studs and ETFE-insulated in-tank wiring
• Fuel Compatibility: Gasoline, methanol and ethanol compliant
• Construction: Anodised aluminium with stainless steel hardware and fuel-resistant tubing

What's Included

• All FHST components and the hardware needed to install a fuel pump into the FHST
• Sock filters for the Walbro and AEM pumps listed

Optional Parts

• Radium FHST Extension Add-On, Audi R8 Type 4S / Lamborghini Huracan (20-0868) – strongly recommended on R8 Type 4S and Huracan to reach the lowest part of the tank (not compatible with Gen 1 R8 or Gallardo)
• Radium Port Injection Fuel Rail Kit - Audi R8 V10 06-15/Lamborghini Gallardo 08-13 (20-0865) – port injection rails for Gallardo LP / Gen 1 R8
• Radium Engineering Port Injection Plumbing Kit - Lamborghini Gallardo LP 550/560/570 (2008-2013) (20-0967-03 / 20-0967-05) – plumbing for the Gallardo LP port injection system
• Radium DIY Fuel Pump Hard Wiring Kit (17-0031) – relay kit recommended to drive the FHST pump

Important Notes

• Fuel pump sold separately
• Verified pumps: Walbro F90000267, F90000274, F90000285, F90000295, GSS342; AEM 50-1200; Bosch BR540; DeatschWerks DW400, DW440 (brushless), DW810 (brushless); Protec 11928 (brushless); Fuelab 49614 (brushless); Injector Dynamics BPC1000 (brushless); Ti Automotive BKS1001 (brushless) – other pumps may fit but are not verified by Radium
• For the Huracan and R8 Type 4S, consult your tuner to get the most from the system
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• Audi R8 Gen 1 (Type 42)
• Audi R8 Gen 2 (Type 4S)
• Lamborghini Gallardo LP550-2, LP560-4, LP570-4
• Lamborghini Huracan LP580-2, LP610-4, LP640-4, EVO, STO, Tecnica

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.