Porsche has patented an innovative six-stroke engine that combines the benefits of a two-stroke engine's power with the ...

Ferrari patented a 2-stroke opposed-piston hydrogen combustion engine — a design used in diesel trucks and submarines, not ...

Intake, compression, power, then exhaust. Every 4-stroke engine ever made – about 80% of all engines currently in existence – function on this principle – even rotary engines. But now, Porsche has ...

The AutoGuide research department strikes again— this time discovering a wild new engine concept from Porsche that could bring huge gains in both efficiency and power density. Porsche has filed a ...

NOTE: With this issue of HOT ROD, your Shop Series begins a slightly different and more comprehensive approach to the discussion of engine and vehicle basics. In the coming months, you'll find a frank ...

At first glance, the concept of engine compression is simple enough:It's the ratio of the volume of the combustion chamber and bore when thepiston is at bottom dead center (BDC) versus when it is at ...

Two-stroke engines have steadily fallen out of favor over the last 50 years or so. While they sport great power-to-weight ratios and are often much simpler mechanically than their four-stroke ...

Towards the second half of the 20th century, the quest to create an engine with more power, long-term reliability, and higher ...

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 ...

Making sure your engine has proper compression is vital for its health. You can rely on one of two methods to test this, but ...