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      12-11-2013, 06:48 PM   #37
solstice
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Drives: 2015 M3 6MT
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Quote:
Originally Posted by Savory View Post
No doubt the N54s and N55s had massive power potential. The difference here being this engine has a full factory warranty and has upgraded internals and cooling designed for 430+ hp (430 is likely conservative too). Those engines also were not known for their high rpm power delivery. They sort of die around 6000 RPM. We don't know the characteristics of the S55 just yet, but with a claimed 7600 rpm redline, I'm hoping M wouldn't let it limp it's way up there.
I agree and I suspect the S55 will not feel much different than a tuned N54 but the difference being not only the warranty but also that BMW has spent significant effort in trying to make the S55 "track grade" I.e that it can generate it's power consistently over an extended track session without overheating etc.
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