![]() The FST-R is not available in dual-pump configurations. There many compatible pump manufacturers not listed.Ģ. The FST-R can be configured with all 39mm fuel pumps from many leading manufacturers.ġ. This picture below also has a Radium 14-0534 to adapt the check valve outlet from 10AN male to 8AN male. If using a fuel pump that does not have an integrated check valve (such as the brushless Ti Automotive E5LM), Radium 20-0534 can be screwed directly to the 8AN male adapter, as shown below. Additionally, one 6AN ORB fitting that adapts to 8AN male is provided, if needed. Three 6AN adapters fittings are preinstalled to the ports. In this case, the vacuum reference hose is not required.Īll three ports are tapped to 9/16-18 (6AN ORB). Note: returnless fuel systems commonly use a constant fuel pressure. A vacuum line can be installed on the barb to achieve a 1:1 vacuum reference. The screw on top of the regulator adjusts fuel pressure on the fly. This added precision will resist diaphragm flutter and optimize pressure stability. The high-flow regulator is adjustable and features interchangeable orifice sizes with calculated flow diameters to match the fuel pump flow to the regulator. ![]() Furthermore, this system permits cooler fuel temperatures as the fuel is not returning from the hot engine bay. This simplifies the installation, reduces overall cost, reduces weight, and eliminates potential leak points in the fuel system. This eliminates the need for an external fuel pressure regulator along with extra fittings and hoses. The FST-R (Fuel Surge Tank–Regulated) houses a single internal fuel pump and has an integrated fuel pressure regulator machined into the top cap. 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 into the surge tank and recirculates 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). It can be mounted on a floor and against a wall. This assumes the bracket is mounted to an electrically conductive material such as a steel frame.Īngled Mount - This mounting bracket is used for vehicles that may have a limited mounting height. It is not only nickel plated to resist corrosion, it also allows for components to be grounded to the spare hole in the bracket. Choose a bracket below that best fits the application.įloor and Wall Mount - This bracket is laser cut from aluminum and powder coated black and can be mounted on the side or bottom of the surge tank.įrame Mount - Because this bracket has a 90deg formed bend and is cantilevered, it is constructed from steel for superior strength. However, the dual pump FSTs cannot be mounted completely horizontal because the pickups are on opposing sides of one another internally. ![]() Note: All of the single pump FSTs listed above can be mounted anywhere from vertical to horizontal. However, mounting near collision prone areas, heat sources, or moving parts such as suspension components should be avoided. The fuel surge tank can be mounted anywhere in the vehicle.
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