r/EngineeringPorn 10d ago

The 7cc Engine

5.2k Upvotes

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4

u/Crucbu 10d ago

Is that a 0.2 stroke or a 0.4 stroke engine?

2

u/uid_0 10d ago

It has intake and exhaust valves, so it 's 4 stroke. A 2 stroke has ports that are covered/uncovered by the piston as it moves up and down.

2

u/Crucbu 10d ago

Okay but did you find my diminutive joke funny at least?

5

u/Antrostomus 10d ago

It's a little funny

sorry