![]() All of this is done inside the fuel cell with the FCST. Excess fuel in the integrated surge tank bleeds out into the fuel cell without the need of expensive hoses and fittings. This volume is also maintained by the "return" from the fuel pressure regulator. The volume of fuel inside the surge tank acts as a buffer always keeping the surge tank pump(s) supplied with fuel. The "lift pump" mounts next to the surge tank canister and keeps the chamber filled. The fuel pumps inside the surge tank provide the primary fueling to the engine. The optimized 2.2 liter canister supports 1, 2, or 3 internally mounted surge tank pumps capable of up to 1,350LPH 43psi. The FCST uses the tried and true Radium Engineering fuel surge tank system preferred by professional motorsports teams worldwide. Radium Engineering Radium Multi-Pump Fuel Surge Tank, MPFST Radium Fuel Surge Tank for External Pumps Radium FST-R, Fuel Surge Tank with Integrated FPR. Alcohol fuels such as E85, methanol, etc can be safely used. Finally fuel enters the VR38DETT engine through high-flow fuel rails. More details on the 20-0856-PK fuel rail plumbing kit can be found HERE. The included fuel pressure regulator, pulse dampers, gauge and fittings control the flow to the fuel rails. The FCST also provides a quick and easy way to drop-in an upgraded fuel pump system for extra flow for vehicles with large power demand upgrades such as forced induction. More details on the 20-0551-0X fuel feed kits can be found HERE. It is the first of its kind to feature a true dual-chamber fuel tank utilizing a single lift pump and up to three surge tank pumps, all in a compact drop-in package. The FCST is NOT a glorified trap door box. The FCST is designed for EFI vehicles experiencing fuel pump starvation issues while using a competition fuel cell. Working internal fluid volume (with 2 pumps): 2.The Fuel Cell Surge Tank (FCST) is a fill plate replacement for popular fuel cells. Mounting base maximum outside diameter: 7.1 inches Mounting base bolt circle diameter: 6.5 inches Height (not including fittings): 8.9 inches The MPFST is available without pumps and prepped for the user to install their own pumps. City: Sacramento State: CA County: License : 8183-07 Agreement: Y Docket: NRC Notified By: Robert Greger HQ OPS Officer: Brian P. If only 2 pumps are used, a plug is included to cap the unused fuel pump outlet fitting. However, if -8AN and/or -10AN port fittings are required. The remaining black port fittings are used for fuel entering and exiting the tank. The Radium in-tank fuel pump hanger, feed and return lines, fuel rail, and pressure regulator completely replace the restrictive OEM fuel system with a setup capable of supporting well over 1,000hp and safe to use with ethanol fuels. These are bespoke adapters which are only available in -6AN male. Green fittings signify the fuel pump outlets. The internal hoses are a special fluoroelastomer formulation that resists permeation internally and externally making it submersible in all types of fuel. All internal wires are gasoline, ethanol, and methanol compliant. The FST incorporates a multi-pin high amperage sealed electrical bulkhead connector. The pumps are mounted using an anodized aluminum bracket. The Walbro F90000274 E85 pumps are shown above. The MPFST can be configured to use up to three fuel pumps. 24" Flying Lead Color Coded Wiring Harness Mounting Feet for Uneven Surface Installations Removeable O-Ring Sealed 6061 Aluminum Caps This is an excellent fueling solution for vehicles installing large demand power upgrades such as forced induction. The surge tank also provides a quick and easy way to upgade any standard fuel system without opening the stock fuel tank. Excess fuel in the surge tank is returned back to the vehicle's main fuel tank. This volume is maintained by the main fuel tank's pump as well as the fuel returning from the fuel pressure regulator. Buy Radium Universal Multi-Pump Fuel Surge Tank - No Fuel Pump - RAD 20-0438-00: Electric Fuel Pumps - FREE DELIVERY possible on eligible. The volume of fuel inside the surge tank acts as a buffer to always keep the FST pump(s) supplied with fuel. The FST fuel pump(s) feed the fuel rail(s). A fuel surge tank (FST) is designed to prevent fuel starvation to the engine on vehicles with inadequate fuel tank baffling.
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