News

MotorTrend on MSN7mon
Porsche's Six-Stroke Engine Could Kill Four-Stroke Designs
The German automaker sees your four-stroke engine and raises you... two more strokes. Ready for some math? Porsche just ...
Interesting Engineering on MSN7mon
Porsche’s 6-stroke engine innovation could rewrite automotive engineering
The key distinction between a conventional 4-stroke engine and a 6-stroke design lies in the cam and valve timing. A ...
Hackaday1y
2-stroke
We’re introduced to the traditional two-stroke diesel engine as thermally efficient but not smooth-running, and then the gas turbine as smooth but much more inefficient. The free piston engine ...
Hackaday8mon
A Two-Stroke Engine Made From Scratch Using Basic Hardware Store Parts
As it turns out, you can indeed build a two-stroke engine from scratch ... question that’s now on everyone’s lips is whether a four-stroke one would be nearly as ‘easy’.
Roadracing World15d
Fantic Expands Into The U.S. With 2-stroke & 4-stroke Enduros
Italy's Fantic Motor is expanding into the U.S. with the XE300 2-stroke and XEF 250 TL 4-stroke enduros, with plans to bring ...
Princeton University5y
Four Stroke Engine
In the exhaust stroke, the exhaust valve is open and the combustion products are expelled from the cylinder. The sequence shown on the next page represents this behavior for a Mitsubishi direct ...