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combustion duration
Using the frame counter the entire combustion event is over at about 475/10000 seconds. That is a duration of .000475 seconds.
If we assume that the major portion of combustion runs from 30 deg BTDC to 90 deg ATDC that would be 1/3 of a crank rotation. 3 x .000475 equals roughly 1100 rpm so this would be similar to idle speed combustion.
Larry
found a math error corrected it equivalent rpm is more like a fast idle.
Last edited by hotrod; 10-18-2007 at 03:23 PM.
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