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      01-18-2011, 07:53 PM   #36
jmunro
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Drives: X6
Join Date: Dec 2008
Location: Duluth, MN

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Quote:
Originally Posted by sarafil View Post
Yeah, it's called the N55.

Seriously though, this engine is derived from the N55.
But the N55/N54 is an undersquare with a bigger stroke than bore. This apparently is an oversquare design.

If the turbo can provide the airflow and Valvetronic can handle it, I wonder how high this engine's redline can go with the oversquare design. I believe that Valvetronic is somewhat limited by high RPM's though, no?