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      07-09-2012, 02:17 PM   #14
Uli_HH
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Drives: AW M3 E90)/ 523i Touring
Join Date: Nov 2005
Location: Hamburg Germany

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Quote:
Originally Posted by mkoesel View Post
You missed an important one:

S63B33 TT V8 with an 8000 RPM redline. The shorter stroke vs. the existing S63B44 allows for the higher peak RPM. Though higher RPM may also preclude the use of Valvetronic. Either way, this engine would, in my opinion, be a better fit within BMW's current product strategies than either an S65Tu or any V6.
Nice idea ... very nice indeed. Best solution for the rpm/Redline issue ... an high reving Turbo engine = best turbo solution for the M3/M4 but costly.

Quote:
Originally Posted by mkoesel View Post
Of course, this also does nothing to address engine weight - something BMW will no doubt manage carefully with the new I6.
I donīt think that an I6 based on the N55, re-inforced, with an bigger turbosystem/more turbo and the needed pipes could be lighter then an N54 ever a little bit heavier ... I think it would would weight somewhat between 195 and 200kg
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