If the pump is purchased elsewhere, some assembly will be required. Note: The FST-R is not available in dual-pump configurations. If the pump is purchased as part of the FST-R, the surge tank will come fully assembled and will be pressure tested for leaks and ready to be installed. The FST-R can be configured with all 39mm fuel pumps from many leading manufacturers. Additional details on the design of the FST-R can be found here. Furthermore, this system permits cooler fuel temperatures as the fuel is not returning from the hot engine bay. Like all Radium fuel surge tanks, this universal product can be used on any fuel injected application and is compatible with all fuel types. This simplifies the installation, reduces overall cost, reduces weight, and eliminates potential leak points in the fuel system. This revolutionary idea eliminates the need for an external fuel pressure regulator along with the extra fittings and hoses. The high-flow regulator is adjustable and features interchangeable orifice sizes. The FST-R (Fuel Surge Tank–Regulated) is an all new design that houses a single internal fuel pump and has an integrated fuel pressure regulator machined into the top cap. Lifetime warranty on Radium components (excludes fuel pump, hoses and fittings) Fully assembled and leak tested before shipment Nickel-Plated Electrical Connector with 24" Flying Leads Interchangeable regulator orifice sizes to match output of different pumps Integrated adjustable fuel pressure regulator with 1:1 vacuum reference Anodized for compatibility with all fuel types Full CNC aluminum construction with O-ring sealed interfaces Need help selecting a fuel pump configuration for your vehicle? CLICK HERE for a unbiased test of popular fuel pumps. Installing a surge tank is also an easy way to upgrade the fuel pump of a vehicle without opening or modifying the OEM fuel tank. Excess fuel in the surge tank is returned back to the vehicle's main fuel tank. In the case of the FST-R, the regulator is built in to the surge tank and is recirculating fuel internally. This volume is maintained by the main fuel tank's (lift) pump as well as the fuel returning from the fuel pressure regulator. The volume of fuel inside the surge tank acts as a buffer to always keep the FST pump supplied with fuel. The FST fuel pump feeds the fuel rail(s). NOTE: the relay "trigger" can be connected to a ground or 12V signal as long as the other end of the low current relay coil wire is connected to an opposing source.CLICK HERE TO SEE EXAMPLES OF INSTALLED RADIUM FUEL SURGE TANKSĬLICK HERE TO DOWNLOAD INSTALLATION INSTRUCTIONSĬLICK HERE for a video on how a Radium fuel surge tank works.Ī fuel surge tank (FST) is designed to prevent fuel starvation to the engine on vehicles with inadequate fuel tank baffling. Raychem Crimpless Solder Heat Shrink Butt Splices (x4) Quick-Connect Posi-Tap "TRIGGER" Connector (x1) Weatherproof Mini Fuse Flying Lead Connector (x1) Weatherproof Mini Fuse Holder with Mounting Tab (x1) Weatherproof Relay Flying 12" Lead Connector (x1) Weatherproof SPDT 12V/40A Relay with Mounting Tab (x1) If a Radium Triple Pump Fuel Hanger was purchased, select "Quantity: 3" If a Radium Dual Pump Fuel Hanger was purchased, select "Quantity: 2" If a Radium Single Pump Fuel Hanger was purchased, select "Quantity: 1" If a Radium Triple Pump FST was purchased, select "Quantity: 3" If a Radium Dual Bosch 044 FST was purchased, select "Quantity: 2" If a Radium Single Internal Pump FST was purchased, select "Quantity: 1" For this reason, order a wiring kit for EACH fuel pump. Radium recommends a dedicated fuse and relay for each fuel pump. Raychem crimpless solder-based butt connectors make reliable wire connections easy and clean. Necessary ring terminals are included for connecting to an external Bosch 044 fuel pump as well. Aircraft grade TXL wiring is resistant to all chemicals and elevated temperatures. The relay and fuse holder are sealed to allow installation in weather exposed areas if necessary. It uses the highest quality components to ensure proper operation in all conditions. This Do-It-Yourself wiring kit includes the necessary parts to construct a power wiring harness for one fuel pump.
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