The EVO X Billet Fuel Rail features a large 0.69" ID bore to suit even the most fuel hungry engines. The rail is CNC machined from solid 6061 aluminum and black dipped anodized for a high quality surface finish. It is compatible with all fuel types including popular alcohol mixtures such as E85. Below is a size comparison with the OEM restrictive fuel rail.
The Radium fuel rail is the first and only on the market to support an (optional) fuel pulsation damper. The opening and closing of the injectors creates pressure pulses in the fuel rail, which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a pulse damper should be used (especially with high flow injectors). The internal diaphragm will absorb oscillation pulses and stabilize fuel pressure. This correction can be measured throughout the RPM range and can often help an erratic surging idle.
Aftermarket Configuration This option does NOT include the Radium 14-0125 FPR Billet Adapter and thus it is not compatible with the OEM FPR. Instead, it utilizes a fuel injector Pulsation Damper for the 3/8" NPT port on the end of the rail. This setup requires an externally mounted regulator, such as the Radium Engineering MPR sold separately. For flexibility, it also includes -6AN and -8AN male adapters that can be used on either the inlet or top 3/4"-16 ports. Custom lines such as PTFE hoses (sold separately) will be required.
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