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.

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 ...

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.

Wärtsilä’s 4-stroke engine-based solution for ammonia fuel now delivers higher than ever levels of efficiency and performance.. Following its introduction to the commercial marine sector in ...

Porsche's 6-stroke patent seems to indicate it could eke more power out of an engine Unless you drive an early 2-stroke Saab , your car probably has a 4-stroke engine . But Porsche wants to see if ...

Porsche engine tech New 4 + 2-stroke format Examining recent Porsche patents. Porsche has filed patents for an engine cycle with two combustion events for every six strokes (or three rotations of ...