Part 4 detail how to measure 2 stroke exhasut port window area to convert to a diameter
to be then used to dimension the diameters of the Expansion Chamber Exhasut.

Includes converting flat paper port map arc widths into chord widths as required by chamber calculations.

Freeware 2 Stroke Expansion Chamber Exhaust calculator program
Download at http://birdcagesoft.com
(Page link on sidebar at site)

#2Stroke #ExpansionChamber #PortArea