ProCharger - the next generation supercharger

ProCharger supercharger

Imagine a bolt-on device that combines the simplicity of a turbo, with the instant, on-demand power delivery of a supercharger - that's ProCharger. No special exhaust manifolding of the conventional turbo, and none of the air-pumping inefficiencies of the conventional Rootes blower. Best of all, the ProCharger is self-contained, and comes with its own lubrication system. Depending on the engine design and the installation, ProCharger can deliver anything between 55 to 100 per cent more power - and that's on standard pump fuel too.

So how's it done? Well, the ProCharger is an engine-driven centrifugal compressor and is matched to an air-to-air intercooler. However, because the ProCharger delivers its boost in line with engine speed, you don't have to wait for an exhaust turbine to spin up before the power starts coming through to the flywheel. And, unlike traditional lobe-type Rootes supercharging, the increase in air/fuel being forced into the cylinders is more gradual, rather than arriving as a sudden 'shock' load that can lead to detonation and blow holes in pistons. Bad enough on a road car - but on the track, something that can put you right out of competition. That's why both turbo and supercharged engines usually have lower compression ratios to start with - even though it means that any forced induction has to play 'catch-up' in the early part of the rev range where a normally aspirated engine would already be coming onto the power curve.

The ProCharger's use of an intercooler has another benefit too. Reducing the air temperature increases its density. The denser the air becomes, the more thoroughly the fuel mixes in with the available oxygen, leading to a far more efficient burn that is automatically cooler to start with. So excess heat, that other contributor to detonation, can be kept better in check. So the ProCharger has benefits of no modification to the exhaust manifold or oil system, it delivers a cooler charge which means that engine modifications (e.g. lower compression ratio) may not be required and above all it delivers significant increases in power and torque throughout the rev range whilst running on standard pump fuel.

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