Quote:
Originally Posted by pimple
I guess I like the supposed improvements in the N55, but I'm just wondering why Valvetronic needed to be used in light of the following (from the 2007 N54 Engine Mechanical pdf here, page 8):
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my guess: because this new engine is a single-turbo unit, albeit, twin-scroll, it still requires the addition of valvetronic to build the torque curve, and optimize HP on the engine.