Radium Venturi Jet Pump Kit

Radium Venturi Jet Pump Kit

Saddlebag style fuel tanks are common in RWD, AWD, and 4WD vehicles. A jet pump is a 3 port device that uses the vacuum created by fuel flowing through a venturi to pull fluid mechanically. In the automotive world, these are commonly integrated into the OEM fuel pump module and are specifically sized to match the OEM fuel pump flow in order to properly move fuel from the passive side to the active side of the tank (where the fuel pump resides). 

When changing to high-flowing aftermarket fuel pump(s), the OEM jet pump can become overwhelmed by the increased fuel flowing through the system, causing backpressure in the fuel return line. In many cases, backpressure is so severe, fuel rail pressure cannot be properly decreased and will affect engine tuning. Furthermore, without a properly designed jet pump, fuel cannot be effectively transferred, thus fuel starvation can become problematic.

The Radium Venturi Jet Pump uses a machined aluminum housing that is anodized and laser engraved. The kit includes 3 interchangeable orifices that were precisely calculated and vacuum pressure tested with multiple pump combinations.

NOTE: WHEN INSTALLING, DO NOT FORGET TO REMOVE THE OEM VENTURI JET PUMP! The system will NOT work properly if it's trying to push through the restrictive OEM venturi jet pump.