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      03-04-2008, 10:42 PM   #5
GregW / Oregon
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Drives: 2015 M4 Coupe, 2012 ML350
Join Date: Nov 2005
Location: Lake Oswego, OR

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Quote:
Originally Posted by T Bone View Post
Can't say what compromises the factory made. I am unsure if the S65 V8 has an electric water pump but the S85 V10 is belt driven. The car does dyno better (+28 RWHP) at the expense of a slight temp increase.

in the M5 / M6's the slight increase in temp doesn't seem to affect anything and universally people think the engine revs quicker.
The water pump in the S65 is belt-driven; transmission cooler pump is electric. I guess I'm past the point of pushing things that far for a non-racing car. Ask me in a couple years, though!
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Greg Lake Oswego, Oregon, USA
2015 M4 Coupe - Silverstone/Sakhir/CF
2012 ML350
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