Discover the engineering behind a miniature 32cc inline four cylinder engine with water cooling. This compact engine project ...

Four-pots were always a great choice for fuel efficiency, and these seven purely gas-powered units prove just how far ...

It used to be that a bigger engine meant more power, but thanks to improvements in engine technology over several decades, that's no longer always true.

Four-cylinder engines have been part of the automotive scene for over a century. Yet the quest for more power under the hood dominated most of the 20th century, giving rise to six- and eight-cylinder ...

Can you put twin turbos on a four-cylinder engine? Discover the mechanical airflow challenges, compounding lag, and rare factory exceptions.

Turbocharged four-cylinders are becoming the norm, but are they as powerful than V6s? It's a little complicated and really depends on the vehicle it's used in.