When two equal turbochargers work independently, it's parallel. If a small turbocharger operates at lower rpm, then a larger one at higher rpm, it's sequential.

Subaru, already an outsider with its flat-four engines and all-wheel-drive systems in passenger cars, looked to the far corners of the engineering world in the early 1990s to devise a novel solution ...

Gale Banks gets excited when he talks about the Super-Turbo Detroit Diesel engine setup he designed alongside his engineers for use in Mike Ryan’s Freightliner Pikes Peak race truck. Banks didn’t ...