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      05-24-2011, 04:47 PM   #58
Mako
(Sold) '00 M Roadster '06 M Coupe '16 M3 '20 X3MC
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Drives: '23 M3 comp
Join Date: Jul 2009
Location: Chicago suburbs

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Quote:
Originally Posted by JoosyJoos View Post
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.
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.
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