Years ago, the choice was clear: When it came to 2 stroke vs 4 stroke outboard motors, 2 stroke won every time. Two stroke motors offered a better power-to-weight ratio, were cheaper to manufacture, ...

Finnish engine manufacturer Wärtsilä must be a fascinating place to visit. The company manufactures some of the most mind-bendingly enormous marine diesel engines in the world, like the ...

When we think of a typical four stroke internal combustion engine, we think of metal. And for any type of longevity or performance, that’s certainly the right choice. But [Integza] wanted to see what ...

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 ...

Designed for hand-held equipment, the GX25 mini 4-stroke engine weighs only 6 pounds and features a .29-kW/kg power-to-rate ratio. It replaces the GX22. Mechanical decompression provides easy start-up ...

Petrol heads all those looking to learn more about the workings of engines may be interested in a new 4 Stroke, water-cooled, working model engine kit called the X-Power which has launched via ...