The N52 and N53 exhaust cam opens about 12-14 degrees sooner than a N54/N55 exhaust cam, if I decide the N52/53 and N54/55 are to close at the same time. This statement needs a little thinking and it's the proper statement to make when dealing with VANOS adjustability.
Would the overlap from the N52 cam opening sooner result in lowering the dynamic CR?
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