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Cubic capacity
Posted: Fri Oct 20, 2017 7:14 pm
by psychedelicropcircle
How do you measure cubic capacity with oversized cranks? Am I right in saying 65mm cylinder with a 60/110 = 199?
Re: Cubic capacity
Posted: Fri Oct 20, 2017 9:40 pm
by Grumpy225
Yes, 199cc.
v=PI*r squared* h
V= 3.14*1056.25*60 is roughly 199cc
Rod length won't affect the volume.
Re: Cubic capacity
Posted: Sun Oct 22, 2017 10:24 am
by warts
Yup, the common term capacity refers to the swept volume. The space swept by the piston as the crank cycles though one revolution.
What Grumpy has done is take the area of the piston/bore (very slight difference) and multiplied by the distance it travels, TDC to BDC, ie the stroke.
Re: Cubic capacity
Posted: Thu Nov 02, 2017 8:08 am
by eden