A computer generated power stroke of an internal combustion engine, following ignition - Pathompong Thongsan/Getty Images When comparing engine specs for nearly any combustion engine automobile, we ...

A gasoline piston engine that can dynamically change its compression ratio —that is, the amount by which the piston squeezes the fuel-air mixture in the cylinder—has long been a holy grail of engine ...

With every passing day the Mule provides opportunities beyond our original expectations. Since the 467ci engine belongs to HPP editor Tom DeMauro, it is at our beck and call. This affords HPP the ...

Compression in a diesel engine is essential for effective and efficient performance. And when compression is lacking, damage can result. That’s why it’s imperative to know whether your engine’s ...

Tuning a carburetor-equipped engine to perform its best with the reformulated unleaded gasoline of today can prove to be a challenge for many kit car owners and builders. Back in the days of leaded ...

Nissan engineers have reportedly been working on the engine concept for more than 20 years, and the company claims to have filed more than 300 patents protecting the design and associated technologies ...

Dim’s fascination with cars began when he was just six. Born into a family of car enthusiasts and racing drivers, he started learning basic mechanics and driving from an early age. While he loves ...

Infiniti was started 27 years ago so Nissan could sell luxury cars to Americans. The new division had a nice flagship, the Q45, though the first one looked a little goofy without a grille. The early ...

The performance world is packed with thousands of ways to improve and reshape the power curve of your engine. Engine size, camshaft profile, compression, carburetion, and intake manifold design are ...