Automakers once bet big on bizarre ideas—from swirling airflows to variable compression—and the results were as fascinating ...

Many don't realize that pistons can make power...or not if you make the wrong decisions. In most cases more compression means more power. What are two of the main factors that determine the ...

A fundamental difference between gasoline and diesel engines is that a gasoline engine uses spark ignition while a diesel engine uses compression ignition. Before we delve deeper, let's understand how ...

The modern era of mass-market affordable turbocharging began in the 1990s with the arrival of VW and Audi's 1.8 Turbo and 2.7 Twin-Turbo engines. For the first time, manufacturers were talking about ...