I started with this inexpensive fuel surge tank. I learned a lot along the way about hoses and fittings. The track has fast left and right hand sweepers that stress fuel and oil pump pickups. This car is relatively new to me and I had never had it at Roebling before. However, 20-0535 can be purchased separately with a 12AN male fitting for quick fill dry break systems that require a high-flow vent.I had some symptoms at Roebling last month that seemed to be fuel starvation. The FCST comes standard with 20-0435 which uses a common 8AN male outlet fitting for standard fuel filling. The external "VENT" port is tapped with 1-1/16"-12 threads making it compatible with all 12AN ORB fittings. The FCST comes standard with a common 8AN ORB to 6AN male adapter fitting. This port uses 3/4"-16 threads making it compatible with all 8AN ORB fittings. The external "RETURN" port is used for low pressure fuel returning from the FPR. The FCST comes standard with a common 10AN ORB to 8AN male adapter fitting. It uses 7/8"-14 threads making it compatible with all 10AN ORB fittings. The external fuel pump outlet port is signified by the "PUMP OUT" engraving. Optional fuel surge tank level switch and diagnostic LED failsafe port. Dynamic safety vent valve with rollover protection and fuel fill shut-off protection. Fuel compatibility: leaded and unleaded gasoline, methanol, ethanol, E85, etc. Full CNC aluminum construction with anodized surfacing for superior corrosion resistance. Simplified servicing features eliminating nylon sealing washers and fuel cell retaining brackets. Hermetically sealed high-current stainless steel electrical studs capable of handling all pumps. Multiple fuel pump options including gerotor, turbine, and brushless DC motor pumps. One-way fill valves located on the bottom of the canister that allows fuel in, but not out, keeping the surge tank full. All pumps use check valves that prevent back-flow in multi-pump applications. Merged single 10AN ORB female threaded outlet. Over the years, Radium Engineering has continued to refine the FCST into a robust and highly functional piece of hardware. This dynamic sequence is all done inside the safety of a fuel cell. If this happens, each fill valve opens and sends 355LPH of fuel (1065LPH total) into the surge tank until fuel level reaches an equilibrium.Įxcess fuel in the surge tank simply overflows back into the fuel cell. These 1-way FKM fill valves are sealed shut unless the fuel level in the cell rises above the fuel level in the surge tank. There are 3 fill valves integrated to the bottom of the surge tank. The return from the pressure regulator is also routed to the surge tank canister to help keep it full. If the lift pump starves, the volume inside the surge tank canister will keep the surge tank pumps fed and the engine supplied with fuel. Inside the surge tank canister, up to 3 EFI fuel pumps can be used to feed high pressure fuel to the engine. The cell depth must be at least 7.7" (196mm) measured from the outer top face to the internal bottom face.Ī lift pump scavenges fuel from the bottom of the fuel cell and pumps it into the 2L surge tank. The opening must be on the top face of the fuel cell (i.e. The cell must have the industry standard 6"x10" 24-bolt flange opening.Ģ. To install a Radium Engineering FCST into a fuel cell, the following criteria must be met:ġ. It provides all the benefits of a traditional external fuel surge tank without safety concerns and plumbing complexity. It features a true dual-chamber fuel tank utilizing a single lift pump and up to 3 surge tank pumps all packaged inside the fuel cell. It is NOT a glorified trap door box with baffles. The FCST is designed to protect EFI vehicles that experience fuel starvation. The Fuel Cell Surge Tank is a drop-in fuel pump system for Radium Engineering's popular fuel cells or any cell that uses the industry standard 6x10 24-bolt fill plate bolt pattern. It quickly became the preferred fuel system for professional racing. To simplify plumbing and packaging, in 2013 Radium Engineering introduced the first generation Fuel Cell Surge Tank (FCST) to the competition vehicle market. Since 2010, external Radium Engineering fuel surge tanks have been an excellent way to eliminate fuel starvation that occurs in racing. Radium Engineering Fuel Cell Surge Tank - For External Pumps.
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