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Originally Posted by M335i Oreo Package
Definitely a great write up... But I have a question there is a spot on the table where timing goes up then down(top left shaded in red)Why is this and what causes it?
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I can also show you timing maps where timing goes down steadily as rpm rises. In that case it is due to the fact that the timing pickup is on the camshaft not crankshaft. Typically where timing is picked up on the crankshaft ( more accurate ) the timing will rise initially then drop to its lowest point at max torque and steadily climb as rpms increase ( torque drops ).
Harry