Horsepower is an aphrodisiac. To some people, building an engine that could sustain the earth's rotation with its crankshaft is better than almost any form of physical gratification. To others, it's ...

Sure, there are lots of ways to add boost to your engine, but nothing says hot rod more than a classic 6-71 Roots blower. Great question—but first, a bit of history. The GMC blower, known as a Roots ...

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...