# Port-map

> Mediated Wiki article. Canonical URL: https://mediated.wiki/source/Port-map
> Markdown URL: https://mediated.wiki/source/Port-map.md
> Source: https://en.wikipedia.org/wiki/Port-map
> Source revision: 1083510574
> License: Creative Commons Attribution-ShareAlike 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/)

In [two-stroke engine](/source/Two-stroke_engine) technology a **Port-map** is a diagram which shows the ports that are cut into the cylinder of an engine.

A port-map can be useful to determine opening/closing-timing and the area of specific ports. These diagrams are usually represented as a rolled out cylinder where the width equals the circumference and the height equals the stroke plus the cylinder skirt, the ports are outlined.

## See also

- [Kramer graph](/source/Kramer_graph)

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Adapted from the Wikipedia article [Port-map](https://en.wikipedia.org/wiki/Port-map) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Port-map?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.