{"product_id":"radium-fuel-hanger-surge-tank-audi-r8-lamborghini-huracan-gallardo-lp-20-0860-20-0868","title":"Radium Fuel Hanger Surge Tank | Audi R8 \/ Lamborghini Huracan \/ Gallardo LP (20-0860 \/ 20-0868)","description":"\u003cp\u003e\u003cstrong\u003eOn a Huracan or Gen2 R8, the factory restricts the port injection rails with orifice fittings, and no injector upgrade gets around that while the systems share a pump.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eRadium Engineering Fuel Hanger Surge Tank for the Audi R8 and Lamborghini Huracan and Gallardo LP\u003c\/strong\u003e drops into the left hand opening of the fuel tank, opposite the OEM pump on the right, and supplies port injectors from a completely independent circuit. The OEM fuel system is left entirely undisturbed: original pump, filter, FPR, venturi jet pumps, and all factory level sensors keep working exactly as designed, feeding the direct injection side. Separating the two circuits retires those restrictive orifice fittings on Huracan and Type-4S cars and gives port injection its own dedicated supply. A single aftermarket pump is required, sold separately.\u003c\/p\u003e\n\u003ch3\u003eChoose Your Configuration\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFuel Hanger Surge Tank (20-0860):\u003c\/strong\u003e the complete FHST with all hardware to install one fuel pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFHST Extension Add-On (20-0868):\u003c\/strong\u003e deepens the canister for Huracan and Gen2 R8 Type-4S tanks; not a standalone product\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat You'll Feel\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePort injection fed independently, with the direct injection system untouched and the OEM orifice restrictions out of the picture\u003c\/li\u003e\n\u003cli\u003eCavitation protection at high power from a dedicated surge collector in the LH tank, rather than sharing the OEM's small single-pump basket\u003c\/li\u003e\n\u003cli\u003eA reserve that stays full three ways: the LH venturi jet pump filling the canister first at up to 302 LPH, regulator return fuel entering through an anti-aeration diverter, and three 355 LPH one-way fill valves totaling 1,065 LPH\u003c\/li\u003e\n\u003cli\u003eBrushless pump capability with high current electrical hardware built for it\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDrop-in installation in the LH fuel tank opening; OEM fuel system and level sensors fully retained\u003c\/li\u003e\n\u003cli\u003eSeparate pump outlet and return inlet for an independent port injection or custom fuel system\u003c\/li\u003e\n\u003cli\u003eReturn diverter preventing aeration and fuel foaming\u003c\/li\u003e\n\u003cli\u003eThree 1-way fill valves flowing 355 LPH each\u003c\/li\u003e\n\u003cli\u003eHermetically sealed stainless electrical studs, non-conductive acorn nuts, ETFE in-tank wiring\u003c\/li\u003e\n\u003cli\u003eAnodized aluminum construction; gasoline, methanol, and ethanol compliant\u003c\/li\u003e\n\u003cli\u003eSock filters included for Walbro F90000267\/274\/285\/295, GSS342, and AEM 50-1200\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eThe Details\u003c\/h3\u003e\n\u003cp\u003eTank depth decides whether you need the extension. Radium strongly advises the 20-0868 extension for Gen2 R8 Type-4S and every Huracan variant so the FHST reaches the lowest part of the tank, and the extension is explicitly not compatible with Gen1 R8 Type-42 or any Gallardo. The extension adds 0.2L using a 39mm deeper canister, with a mid section between canister and bottom cap, longer convoluted tubing, an extended stainless pump bracket keeping the pump inlet at the bottom of the surge tank, and a stainless mount relocating the OEM venturi jet pump clear of it. For plumbing, the common scheme on Gallardo LP and Gen1 R8 Type-42 pairs this tank with the Radium port injection kit (20-0865) and its plumbing kit (20-0967-03 or 20-0967-05). Radium advises Huracan and Type-4S owners to work with their tuner on system design. A relay kit such as 17-0031 is recommended to drive the FHST pump.\u003c\/p\u003e\n\u003ch3\u003eKit Includes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e20-0860:\u003c\/strong\u003e all FHST components and the hardware to install one fuel pump\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20-0868:\u003c\/strong\u003e mid section canister, three FKM canister O-rings, large and small ID convoluted tubing, stainless venturi jet pump mount, extended stainless pump bracket, four stainless EFI clamps, six socket head screws, thread forming nuts, and zinc-plated steel screws\u003c\/li\u003e\n\u003cli\u003eNOT included: fuel pump, relay kit, port injection kit, and plumbing kit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAudi R8 Gen1 Type-42 and Gen2 Type-4S\u003c\/li\u003e\n\u003cli\u003eLamborghini Huracan LP580-2, LP610-4, LP640-4, EVO, STO, and Tecnica\u003c\/li\u003e\n\u003cli\u003eLamborghini Gallardo LP550-2, LP560-4, and LP570-4\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eThe 20-0868 extension is an add-on to the 20-0860, not a standalone product\u003c\/li\u003e\n\u003cli\u003eRadium strongly advises the extension on Gen2 R8 Type-4S and all Huracan models; it is not compatible with Gen1 R8 Type-42 or Gallardo\u003c\/li\u003e\n\u003cli\u003eRequires one aftermarket fuel pump, sold separately\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Radium Engineering","offers":[{"title":"Fuel Hanger Surge Tank (20-0860)","offer_id":43700584349763,"sku":"20-0860","price":759.95,"currency_code":"USD","in_stock":true},{"title":"FHST Extension Add-On (20-0868)","offer_id":43700584382531,"sku":"20-0868","price":161.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0064\/7754\/5539\/files\/20-0860.jpg?v=1787343903","url":"https:\/\/www.tunedbyshawn.com\/products\/radium-fuel-hanger-surge-tank-audi-r8-lamborghini-huracan-gallardo-lp-20-0860-20-0868","provider":"Tuned by Shawn","version":"1.0","type":"link"}