There is also a 1/8NPT female port for a guage or pressure transducer. The main ports are -6AN O-Ring (9/16-18 female thread) and will accept a variety of adapter fittings. This reduces the number of fittings required and eliminates a possible leak point. The compact housing is equipped with an integrated machined -6AN flare fitting for the return port on the bottom. Or if the vacuum reference is removed a constant static fuel pressure can be achieved. As intake manifold pressure changes, the fuel pressure changes at the same rate. The Bosch regulator tops are vacuum referenced with a 1:1 ratio. The regulator body is held in the housing with a stainless steel snap ring and it can easily be removed for cleaning or replacement using a pair of snap-ring pliers. The extremely compact billet aluminum housing provides a convenient package for plumbing and mounting. These Bosch regulator units are the same found on millions of OEM vehicles from Porsche, Audi and VW to Ford so the build quality is extremely high. Mounted on the fuel rail is the Radium Direct Mount Regulator (DMR) and a Radium FPD-R fuel pulse damper. The Radium Fuel Delivery System is E85 safe.ĬOMPATIBLE FUEL INJECTORS, FUEL PUMP(S), AND ELECTRICAL (WIRING, RELAY(S), FUSES(S), ETC.) ARE ALL THAT IS REQUIRED.The universal Radium Fuel Pressure Regulator (FPR) is built around an OEM Bosch regulator top. Adapter fittings and pressure gauge are included. The fuel pressure regulator return uses a short -6AN prefabricated PTFE hose and adapter fittings (return kit) to connect to the factory fuel feed line, using it as the return line. The -8AN feed line connects to the Radium EVOX fuel rail, as shown below. A selection of fuel filter elements are available. The filter is mounted to the chassis under the car using a specially designed bracket that does not require any cutting or drilling for installation. The fuel pump configuration can be selected using the drop-down menu above.įrom the fuel pump hanger, the feed line kit passes fuel through a Radium in-line fuel filter using prefabricated -8AN PTFE hoses. More details on this product can be found here. At the heart of the system is the Radium EVOX fuel pump hanger (shown below). The Radium fuel pump hanger, feed line kit, fuel rail, and pressure regulator completely replace the restrictive OEM fuel system with a setup capable of supporting well over 1,000hp. This comprehensive kit includes all Radium Engineering components required to construct a high performance fuel delivery system for the EVO X. The result is a bolt-on kit that performs as expected, capable of meeting the fueling needs of highly modified 4B11T engines. Every details has been thought out and tested in real world conditions. The Radium Complete Fuel Delivery System for the EVO X solves all these issues in one complete kit. If not thought out properly, issues will show up on the dyno, such as inconsistent fuel delivery, overly high fuel pressures, fuel starvation and more. All these, and more, create a complicated system to modify for high performance. The restrictive return line, the in-tank venturi jet pump system, the integrated fuel filter. It is very difficult to upgrade only one component without consideration for the others. Upgrading the fuel system on an EVOLUTION X can be a lot of trouble if not thought out completely. Walbro GSS342 Fuel Pump - ($79.95) IN STOCK
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