Audi got tantalizingly close to building a truly potent five-cylinder engine. This is why it chose not to proceed.

As we'll illustrate in this story, the LS engine is capable of producing big-block-style displacement and power in a small-block-sized package. It seems like something larger than a mouse yet smaller ...

Subaru stands out as the only U.S. automaker still producing a turbocharged flat-4 engine, a configuration that offers unique ...

We spent a couple of days at JMS Racing Engines, in El Monte, California, talking with owner Mike Johnson and his machinists and builders to get the scoop on what makes a successful, budget ...