NCLRA logo  

Calculate Port Timing from Port Height and Vice Versa

Thanks to Callum Agnew

Length measurements can be metric or Imperial (US)

Stroke: Enter the stroke
Rod Length: Enter the Conrod Length
Height: This is the Port Height Above BDC
Duration: This is open duration of the port in degrees


After entering the stroke and rod length, enter:
(a) the port height and click "Calc Duration" to get the duration or
(b) enter duration and click "Calc Height" to get the port height.