Which is cheaper to maintain, a 2-stroke or 4-stroke? This depends on the age of the outboard motor and the number of hours on it. But generally speaking, two-stroke engines are cheaper and easier to ...

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 … ...

The key distinction between a conventional 4-stroke engine and a 6-stroke design lies in the cam and valve timing. ... Porsche aims to push the internal combustion engine’s evolution forward.

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.

Internal combustion engines are ... The 327 SBC used the 4.001-inch bore with a 3.25-inch stroke, ... Four-cylinder engine fans have multiple stroker engine kit options from 4 Piston ...

Audi says the combustion method in the new engine is similar to the Miller cycle, which leaves the intake valve open during part of the compression stroke and makes the engine compress against the ...