I think I am having brain fade! I am trying to estimate the swept volume of a scroll compressor. I will use simple values for calculation. Assuming the diameter of each scroll is 4" and the scroll fin height or depth is 2". If I remember correctly, the scroll will intake 360* of rotation so this might assume the volume of the compressor minus the volume of the scroll fins. Assuming the width of the fins is .200" and their combined length is 30", I might have: 2^2*pi*2 - (.200*2*30) 25.132 - 12 = 13.132"^3 per rev ?? any I way off base with 360* of intake?