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Thread: N62 Tuning ME9.2

  1. #1
    Join Date
    Jan 2008
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    N62 Tuning ME9.2

    Does anyone offer performance tuning for the N62?

    Or even beyond the scope of normal tuning - I have been pondering the idea of building a 4.7L N62 using a 4.8 crank in a 4.4 block. Using the Alpina H1 block (which is supposedly different and stronger than the standard 4.4 block) paired with the 4.8 crank and connecting rods (which BMW says are stronger as well) to make a ~4.7L H1

    Is there anyone who works on these engines or DME's in this manner? I know they are extremely unpopular in the aftermarket community, but I like the engine and would like to expand the limits on what can be done to these engines, however I don't know anything about tuning myself really

    Alternatively - is there somewhere I can start learning this stuff myself? Feels like all the information on how to tune these engines is locked behind iron clad doors, accessible only by those "in the know"

  2. #2
    Join Date
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    2009 550I Sport Package
    The block is the same as the 4.8 Alpina just stamps their part number on it, the crank is stronger in the Alpina.
    "Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming... -- WOW-- What a Ride!" [author unknown]

  3. #3
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    The Alpina engine was based on a 4.4 so is a 92mm bore block, the 4.8 uses a 93mm bore block. Same block architecture but the 4.8 is bored. And yes as you mention I have had confirmation recently that Alpina used a standard 4.4 block, they only changed the rotating assembly including pistons, to lower compression slightly and add strength.

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