Wednesday Rewind: Procharger Shows How Centrifugal Superchargers Come To Life

There always seems to be a little black magic that goes on inside those snail-shaped power-adders that we all enjoy. In this Wednesday Rewind, we look back to this story when leading supercharger manufacturer ProCharger opened their doors and showed our readers some of the highlights of building boost-makers.

The relationship between the impeller and the compressor housing is crucial to creating the necessary boost. With incredibly high impeller speeds and impeller designs constantly becoming more efficient, being able to adapt and yet withhold to exacting tolerances is provided through computer-aided milling of the billet aluminum.

As this is a rewind, it makes sense to re-visit the history that ProCharger has helped create in the centrifugal supercharging industry. They were the first to integrate an intercooled application of supercharging and the first to offer a two-second improvement in E.T. over a stock application. They were also the first to utilize billet aluminum impellers, making use of their precision machining and adaptability.

Precision tolerances and detailed balancing are key when impeller rpm speeds easily reach in the five-digit zone. Our bird’s eye view of the process helps dispel some of the mystery behind manufacturing boost without giving away too many tribal secrets. If you’ve ever wondered how companies like ProCharger squeeze all that additional power into your engine’s output, this rewind may just help you wrap your head around it. Check out the story and be sure to click on ProCharger’s website to see how they can help you get more performance from your engine.

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About the author

Andy Bolig

Andy has been intrigued by mechanical things all of his life and enjoys tinkering with cars of all makes and ages. Finding value in style points, he can appreciate cars of all power and performance levels. Andy is an avid railfan and gets his “high” by flying radio-controlled model airplanes when time permits. He keeps his feet firmly grounded by working on his two street rods and his supercharged C4 Corvette. Whether planes, trains, motorcycles, or automobiles, Andy has immersed himself in a world driven by internal combustion.
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