Richard Holdener
June 28, 2011

To illustrate the gains of the Maxflow Power Cooler, we installed the system along with a pulley upgrade on the supercharged 5.0L test motor. Installation required reorientation of the compressor housing on the supercharger, as the inlet of the Power Cooler was positioned differently than the standard discharge tube. Installation also required running water lines to and from the cooler.

Vortech supplied not only the lines and clamps, but also a reservoir, pump, and secondary heat exchanger to complete the system. We ran only the lines to and from our dyno water source. Ice water would obviously increase the cooling effect, though the gains would be less prominent at our sub-10-psi test pressure.

Equipped with the Maxflow Power Cooler and 2.87-inch blower pulley, the supercharged 5.0L pumped out a maximum of 9.8 psi and 401 hp and 421 lb-ft of torque. From a percentage standpoint, the gains were significant, but we can't help but think we'd like to run this Vortech supercharger system (with an 8-rib pulley setup) on something other than a stock 5.0L to clearly demonstrate its ability to produce in excess of 725 hp.

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