A=CC'S OF ONE CYLINDER(SEE V OLUME OF DISPLACEMENT CHART & DIVIDE TOTAL CC'S BY 4)
eg .2180/4=545CC'S
B=CC'S VOLUME OF COMBUSTION CHAMBER (SEE VOLUME OF COMBUSTION CHAMBER CHART)
EG STOCK IS 51CC'S
C=CC'S VOLUME OF DECK HEIGHT (SEE DECK HEIGHT CHART)
EG 92'S WITH 0.065"
DECK HEIGHT IS 10.96CC'S |
A+B+C=TOTAL VOLUME IN CC'S
B+C=VOLUME WHEN COMPRESSED
A+B+C/B+C=C.RATIO
eg 545+51+10.96/51+10.96=C.RATIO
606.96/61.9=9.79 TO 1
(9.79 TO 1 COMPRESSION RATIO)
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