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Message: [QUOTE="Hotrodtractor, post: 998370, member: 25"] No - injection events should never overlap. I know there was some thinking of that in the past and some testing, but that is completely the wrong direction. Think of the injection event in terms of crank angle degrees instead of milliseconds (or microseconds depending on your tuning system). Oversimplifying everything and rounding numbers to something easy to talk about - lets say that magic number is something like 60 degrees of engine rotation for an injection event. (Its not). At lower RPMs it takes forever to go 60 degrees of crank rotation, but as RPM increases the amount of time it takes gets less and less..... ie less and less PW to hit that injection event window.... The popping and cracking occurs when the IDM freaks out because it can not interpret the signals it is receiving from the computer... ie the PW is too long to give a good clean signal for each injection event..... when this occurs you have already spent too much time attempting to inject fuel. [/QUOTE]

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