P/N: 14-0143, Qty: 2 or 3 depending on how many Walbro GSS342 or F90000274 or F90000295 pumps will be used. P/N: Walbro F90000295, Qty: 1 for the lift pump. P/N: Walbro F90000274 or Walbro GSS342 or AEM 50-1200, Qty: 1 or 2 depending on how many brushed pumps will be used in the surge tank. P/N: 14-0543, Qty: 1 or 2 depending on how many Ti Automotive E5LM brushless pumps will be used. P/N: Ti Automotive BKS1001, Qty: 1 or 2 depending on how many brushless pumps will be used. In this case, the most cost effective solution is to purchase the following: popular fuel pump strategy is to use both brushed and brushless pumps (E5LM) together as depicted below. Not sure which pumps to choose? CLICK HERE or email us. This system supports the following fuel pumps (make sure the correct hanger version is selected to match the pumps used): Refer to the install instruction link above for more details. There will be enough parts to run 1, 2, or 3 surge tank pumps and 1 lift pump. The fitting ports are machined low enough to clear the unibody sheet metal.įOR MORE INFORMATION ON THE CLEAR FUEL PUMP COVER SHOWN ABOVE, CLICK HERE.Īll kits come partially assembled with the final assembly performed by the technician during installation. No extra fuel plumbing is required.Īdditionally, 8AN (feed) and 6AN (return) adapter fittings are provided for connecting aftermarket -AN style hoses. The preinstalled barb fittings permit direct connections to the factory fuel hoses. Once the surge tank is full, excess fuel overflows back into the main tank. Also shown are the two one-way flapper valves that let fuel in but not out. The lift pump sends fuel into the bottom of the surge tank through an SAE quick connect ftting (below) which makes assembly easy. The collector box features a 1-way trap door to control slosh and prevent lift pump starvation. The sensors and lift pump attach to this box assembly. All of these work together to keep the surge tank full of fuel at all times.Ī stainless steel collector box (below) is provided that secures to the fuel tank floor. What keeps the surge tank full? The FST pump(s) are supplied with fuel from 3 different sources: the high flow (low pressure) lift pump, the fuel pressure regulator (FPR) return, and the two integrated 1-way fill valves. This ensures that fuel starvation will not occur and the supply of fuel to the engine will remain steady under all driving conditions. The surge tank system works by keeping fuel trapped around the pump (or pumps) that feed the engine. Furthermore, the system is compatible with all alternative fuels such as E85. No grinding, bending, or modification of the vehicle is required. This system can meet the fuel demands of any engine power level.Įven with all of the extra fuel pumps, the FHST system is very straight forward and relatively simple to install. It can be configured with 1, 2, or 3 high pressure pumps to feed fuel to the engine and 1 lift pump to keep the surge tank full. The FHST is a fully functional fuel surge tank contained inside the OEM fuel tank. A stand-alone surge tank is an excellent device for eliminating fuel starvation, but installation can be complex. Unstable fuel pressure resulting in a lean fuel mixture can cause engine damage. Fuel pump starvation is common when a vehicle is driven aggressively. The Radium Engineering FHST (fuel hanger surge tank) is the ultimate solution for fuel starvation issues. For customers looking for a fuel pump hanger for the "non-GTR" R32 Skyline, click HERE.
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