The Radium Engineering 20-0860 Fuel Hanger Surge Tank (FHST) is a drop-in aftermarket fuel pump solution for the Audi R8 and Lamborghini Gallardo / Huracan platform. Designed to independently supply fuel to a port injection system, the FHST leaves the OEM direct injection fuel system completely undisturbed — the factory pump, filter, FPR, and venturi jet pumps all continue to operate as standard.
The integrated surge tank canister ensures a constant fuel reserve is maintained around the aftermarket pump, eliminating fuel starvation under hard cornering, acceleration, or low fuel conditions — critical for high-power and track applications.
How the FHST Works
The FHST drops into the LH opening of the fuel tank — the opposing side of the OEM fuel pump on the RH side. It does not disrupt any aspect of the OEM fuel system and retains all OEM fuel level sensors. The FHST canister is supplied with fuel from three independent sources:
LH OEM venturi jet pump — now fills the FHST canister first; overflow bleeds into the OEM pump basket as factory
Aftermarket FPR return — returning fuel enters the canister through a diverter to prevent aeration and fuel foaming
Three 1-way fill valves — flow 355LPH each (1,065LPH total); allow fuel in but not out, maintaining the surge reserve
Plumbing
For Lamborghini Gallardo LP and Gen 1 Audi R8 (Type 42) vehicles, this FHST is used in conjunction with the Radium 20-0865 Port Injection Fuel Rail Kit and the Radium 20-0867-03 or 20-0867-05 Port Injection Plumbing Kit. For Lamborghini Huracan and Gen 2 Audi R8 (Type 4S) vehicles, consult with your tuner to configure the system for your specific application.
Electrical
Custom designed stainless steel electrical studs handle the high current demands of modern high-flow fuel pumps. Connections are hermetically sealed and impervious to all standard and exotic fuels. Non-conductive anodised aluminium acorn nuts prevent accidental short circuiting. In-tank wiring is insulated with chemically resistant ETFE. A relay kit (such as Radium 17-0031) is recommended to drive the FHST pump.
Key Features
Drop-in installation — fits LH fuel tank opening, no cutting or permanent modification required
OEM system undisturbed — factory DI pump, filter, FPR, and venturi jets all continue to operate as standard
Surge tank functionality — 1,065LPH total fill capacity via three 1-way valves, eliminates fuel starvation
Anodised aluminium construction — lightweight, corrosion resistant, fuel safe
E85 and alcohol fuel safe — compatible with gasoline, methanol, ethanol, and E85
ETFE insulated in-tank wiring — chemically resistant throughout
Compatible Fuel Pumps
Requires a single aftermarket fuel pump (sold separately):
Walbro F90000267 (sock filter included in kit)
Walbro F90000274 (sock filter included in kit)
Walbro F90000285 (sock filter included in kit)
Walbro F90000295 (sock filter included in kit)
Walbro GSS342 (sock filter included in kit)
AEM 50-1200 (sock filter included in kit)
Ti Automotive BKS1001 Brushless (sock filter included in kit)
Bosch BR540 (sock filter included from pump manufacturer)
Deatschwerks DW400 (sock filter included from pump manufacturer)
Deatschwerks DW440 Brushless (sock filter included from pump manufacturer)
Protec 11928 Brushless (sock filter included from pump manufacturer)
Fuelab 49614 Brushless (sock filter included from pump manufacturer)
Vehicle Fitment
Audi R8 Gen 1 (Type 42)
Audi R8 Gen 2 (Type 4S)
Lamborghini Gallardo LP550-2
Lamborghini Gallardo LP560-4
Lamborghini Gallardo LP570-4
Lamborghini Huracan LP580-2
Lamborghini Huracan LP610-4
Lamborghini Huracan LP640-4
Lamborghini Huracan EVO
Lamborghini Huracan STO
Lamborghini Huracan Tecnica
Available Part Numbers
20-0860 — Fuel Hanger Surge Tank (FHST), Audi R8 / Lamborghini Gallardo / Huracan
Why Radium Engineering?
✔ Designed and manufactured in the USA
✔ Drop-in installation — OEM system completely undisturbed
✔ 1,065LPH surge capacity — eliminates fuel starvation under all conditions
✔ Trusted by professional motorsport teams and serious enthusiasts worldwide
✔ Exclusively distributed in Australia by Coore
Genuine Radium Engineering product. Stocked in Sydney for fast Australian delivery. Fuel pump sold separately. Relay kit 17-0031 recommended. For Gallardo LP and R8 Gen 1 applications, pair with Radium 20-0865 and 20-0867 kits. Professional installation recommended.
We endeavour to ship all regular and stocked items on same day, next day or within 5 business days of your order being placed
Custom orders may take longer than regular shipping times but will have information about shipping time on the listing
We take extra care in packaging your orders to ensure you quality parts arrive safely
PRP accepts no responsibility for damage or loss to items/products/services from courier or shipping companies once we have received receipt for the third-party service
All Items purchased from PRP are to be installed by a qualified mechanic at a licensed workshop
Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy
PRP assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use, as all our products are intended for track use only
Refund requests will be reviewed case by case. Due to numerous factors including automatic & immediate 3rd party supplier purchase orders & merchant fees imposed on us, you might be liable to cover an unavoidable restocking/cancellation fee of ≥ 5%. Please review your purchase and consider contacting us for an ETA before placing an order. If your order is for a gearbox, specific turbocharger, engine build, manifold or something generally not in our extensive inventory, this restocking fee is based on the supplier and not dictated by PRP.
Effective September 2024, refunds will not be provided for change of mind, incorrect choice or custom ordered products.
Exchanges or refunds for items and customers that are categorized and applicable under the Australian Consumer law, requires the product/s remain unused and returned in original packaging in saleable condition at your expense to our HQ in Australia. They must return in reasonable time. PRP justifies reasonable to 60 days from date of purchase.
If items are damaged due to courier or otherwise neglect outside of your or PRP's control, you must notify PRP within 14 days of receipt or the claim is void.
Platinum Racing Products is not liable for refunds or replacements due to lost or stolen property. We will however attempt every effort to assist in the recovery of your goods.
We reserve the right to offer you a full or partial refund which can be applied over staged or full payment/s within a 30 day period.
You agree that if you select "Authority to Leave" or similar, you waive the liability from the shipper (as per their line agreement) and Platinum Racing Products. As such, we strongly suggest sending your package to an address where someone will be available to sign for the goods and keep them secure.
Anodizing is done in house with state of the art equipment and we hold stock of most popular colour's. We anodize generally within 48hrs. No refund nor partial will be provided if your request is inside the 48hr period and you require urgent parts however we will always do our best to meet your needs.
There is no partial or full refunds on shipping where factors are outside of PRP's control. Any shipping estimates are to be considered estimates only.
Silicone Hose Kits: Please note that our silicone hoses have been designed and tested for the vehicle models mentioned. They may fit other vehicles with the same engine model, however the purchase and installation is at your own risk. Due to extensive model changes throughout the years, we are unable to supply or customize hoses in alternative lengths or sizes beyond what is offered. The kits might not contain every hose you want, but we have made every effort to include the series changes to cover the majority of needs. This means we might include hose/s that don't suit your series as a bonus. We strongly advise that you carefully review all photographs provided before making your purchase. PRP does not offer refunds or partial refunds for hoses that are not included in the kit unless they are explicitly shown in the photographs and missing from your delivery.
Warranty Policy
Warranty is for a full refund or exchange provided the item was purchased through PRP or one its approved resellers or workshops.
Warranty is void if you tamper with products or bring them back in a different state to which they were sold to you.
Warranty does NOT cover costs of shipping to and from in any circumstance.
All Items/Products/Services purchased from Platinum Racing Products are to be installed by a qualified mechanic at an approved workshop and ALL warranty claims are dependent on proof of appropriate installation and verification of failure.
Modifying your vehicle is illegal in some states and territories, the customer acknowledges that it is their responsibility to abide by the law and take the appropriate measures to ensure that their vehicle is roadworthy.
Platinum Racing Products assumes no responsibility for any work carried out, modifications made or parts supplied with regards to road use. All our products are sold and intended for track use only.
Lifetime warranty refers to certain Platinum Racing Products branded components and generally does not include 3rd party suppliers and their parts. Manufacturer warranty applies to items including but not limited to alternators, turbochargers, electrical sensors, ECUs and associated parts, tyres, etc.
Due to customer and external components not supplied by PRP, flat drive oil pumps and components are limited to 1 yr warranty with specific cases reviewed before honoring. Spline drive will remain to have lifetime warranty, but again only after specific review.
All refunds and warranty claims are based on back to base review and parts will need to be returned to HQ for assessment unless otherwise arranged.
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