Quote:
Originally Posted by JoosyJoos
Correct me if I'm wrong (anyone) but I don't believe the N54/N55 can be bored out that much... and lets keep in mind the block is an aluminum open deck block. Not sure how thrilled BMW would be to make a production car with the (assumed) high levels of torque, boost,and heat from 3 turbos with an aluminum block (even with cast iron sleeves). And then there's the weight issue---the N54/N55 block is heavy especially when compared to the N52.
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sorry, I wasn't saying turn the N54 or N55 into a 3.2L, really meant build a new one (old M3 used to be 3.2L, I remember the 3.2L in my M coupe as well). take a newer version of that engine and add turbos.