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Supercharger Basics
Centrifugal superchargers, such as this Vortech V-1, are similar to turbochargers in that air is compressed inside the supercharger. High impeller speeds--upward of 40,000 rpm--turn air velocity into pressure, or boost. View Related Article
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Hummer H3 Research
Hummer H3 Read the latest reviews of the new H3, including multi-vehicle comparisons, long-term tests, first rides or detailed new-car road tests. The H3 has a V8 standard engine producing 239 horsepower, and has drivers side crash test ratings of 5 stars and passengers side crash test ratings of 4 stars. The Ford F350 and the Toyota Land Cruiser are other vehicles that might interest you.