Quote:
Originally Posted by Mako
so has it been confirmed if they stick with a i6 that it will be the N54 or N55 3.0 liter? how do we know they aren't bringing back a 3.2L i6? I would think a 3.2L with twin turbo plus an electric turbo could easily push out 400+HP and torque, plus would be a new engine for M's only and be used in the X3M, Z4M, next gen M3, M4, X4M...
I am all for a tri turbo 3.2L i6 which could get over 20 mpg combined in all cars. It would devistate the new twin turbo V8 the next gen C63 would get, performance would be similar but MPG would be a joke compared to a tri turbo i6.
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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.