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[ndstrctbl]

Originally Posted by ranmansnaple

about the round port so is that example port 6 inches tall by 6 inches wide and you figure it 3.14x3"x3". or is it really just a 3" pipe

the formula to find the aera of a round port is (Pi times radius times radius). the diameter is 6", and half of that is the radius which is 3". so it looks like this:

3.14x3x3.

then to figure out the displacement you times it by the depth and divide by 1728.

so, no it is not a 3" pipe, it is infact a 6" pipe.