Thread: M550dx red-line
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      02-27-2012, 03:19 PM   #3
Resident Diesel Junkie
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Drives: 2010 AW 335d
Join Date: Aug 2009
Location: Maryland

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One of the first things that caught my eye about the M550dx was how high its engine revs. Interestingly, according to the specs, it still produces peak power between 4000 and 4,400 rpm, the same as our engines. I wonder if forcing it to shift at 4500 rpm, the same as our cars, will actually lead to faster acceleration.