content22207 wrote: >Actually more advance needed so mixture will have time to combust >before piston reaches top of stroke. > OOPS. You don't really want the mixture to combust before piston reaches top of stroke do you? You want the combustion to propagate such that most rapid expansion (due to combustion) occurs when piston is 50% down in firing stroke. To do this requires the mixture to be lit before the piston reaches top of compression stroke. This is measured in degrees Before Top Dead Centre (BTDC for anyone who's still following this but doesn't understand what in the hell we're blathering on about) Martin To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx _____ Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/DMCForum/ * To unsubscribe from this group, send an email to: DMCForum-unsubscribe@xxxxxxxxxxxxxxx <mailto:DMCForum-unsubscribe@xxxxxxxxxxxxxxx?subject=Unsubscribe> * Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service <http://docs.yahoo.com/info/terms/> .
<<attachment: winmail.dat>>