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Mathematical
Measurements
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Average:
(12.00 +
12.69)/2 = 12.35
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1 Degree = .6721 inches. Based on the current engine housing size.
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a - calculations from 2006. Original
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b - piston plate face aluminum inserts details before 22-Aug-08
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c - exhaust ports tot he right. Moved CW 27.75 deg. Note that the piston plate seals or seal is CCW past
the ports for compression start.
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Example; Otto, ICE: If the volume of the cylinder with the piston at BDC is 10 times greater than the
volume of the combustion area with the piston at TDC, then 10 units of volume get squeezed into 1 unit
of space, and the compression ratio is 10.0:1.
http:/www.carcraft.com/techarticles/calculate_compression_ratio/index.html
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