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West Point
The Library
7.3 Performance
Heui injectors
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[QUOTE="Hotrodtractor, post: 390833, member: 25"] OK let start with your base question.... you get confused when people talk about pulse width "and everything else" ..... lets take a look at this injector flow chart - I chose this one cause it has lots of colors. :D [URL=http://rides.webshots.com/photo/2268739020088936788WKDGWa][IMG]http://inlinethumb10.webshots.com/46217/2268739020088936788S600x600Q85.jpg[/IMG][/URL] Notice that the axis along the right lower edge of the graph is ICP - this is the pressure of oil in the high pressure oil rails in the heads. The bottom/front edge is the pulsewidth in milliseconds. This is the amount of "on" time that an injector sees - its the signal that Dave posted a link to. The vertical axis is the volume of fuel per a 1000 shot test (industry standard). This is measured in CCs So - on this injector if I was running say 2.5ms of PW at 2500psi of ICP that puts me at about 310cc or so - its at the bottom of the "orange" area. [/QUOTE]
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