QUESTION: What was the last car to have a two-stroke engine? As strict Western emissions standards were developed, two-stroke models were phased out. However, this was not the case in the Eastern Bloc ...

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 ...

In 2001 Mary Jane Ortega, then mayor of San Fernando City in the Philippines, knew her city was choking to death. The cause? Air pollution, specifically that from two- and three-wheeled vehicles ...

The two-stroke gasoline engine was once a marvel of engineering, offering up huge doses of power in small and lightweight packages. Unfortunately, gas two-strokes also burn oil by design, making them ...

Porsche was issued a patent for its six-stroke combustion engine on October 22, 2024. The company describes the new engine as having a "working cycle" of three complete crankshaft revolutions with two ...

The sounds. The smells. The feels that electrify the senses and carry you back to simpler times. For many motorcycle enthusiasts, working and riding on two-stroke bikes capture the essence of a bygone ...

We've seen many engine configurations come and go, with some being more noteworthy than others and some being just outrageous. Honda attempted to modify the shapes of the pistons used in its engine, ...

Anyone who appreciates simplicity of design and efficiency of operation has to like small two-stroke-cycle engines that power construction tools such as cut-off saws, rammers and breakers. Producing ...

Porsche patented a 6-stroke engine Outside of early Saabs, most gas-powered car engines are a 4-stroke Porsche's 6-stroke patent seems to indicate it could eke more power out of an engine Unless you ...

Porsche has patented a revolutionary six-stroke internal combustion system. Contrast to all modern combustion engines that run the four-stroke Otto cycle that typically features one compression and ...

Two-stroke engines like regular use, so after a summer of languishing at the back of the workshop it should be no surprise if the old chainsaw is reluctant to start. Yanking at the starting cord until ...