Editor's Note: The purpose of the Shop Series has been to acquaint and enlighten the car enthusiast with some of the more involved aspects of automotive mechanics, vehicle repair and modification. As ...

Few things in car culture stir people like a great engine note. It can raise the hair on your neck before the car even rounds ...

Numerous articles and stories have been prepared by hundreds of experts on how to improve the internal combustion (IC) engine for more speed, power or what have you. Millions of dollars worth of ...

The vast majority of vehicles are powered by what’s known as an internal combustion engine. It’s a concept that’s been around for a long time but a Belgian engineer, called Jean Joseph Etienne Lenoir, ...

Diesel engines are often harder for home mechanics to repair, as parts are heavier and more expensive due to how diesels ...

Almost all cars currently use what is called a four-stroke combustion cycle to convert gasoline into motion. The four-stroke approach is also known as the Otto cycle, in honor of Nikolaus Otto, who ...

One of the more difficult technical aspects of diesel performance is choosing a turbocharger. If you put enough fuel through a diesel engine, it's going to run up against a point where the stock ...

The 2007–2022 fuel-injected Harley Sportster Evolution 883 and 1200 offers proven reliability, simple maintenance, and strong ...