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      03-04-2008, 11:32 PM   #3
GregW / Oregon

Drives: 2015 M4 Coupe, 2012 ML350
Join Date: Nov 2005
Location: Lake Oswego, OR

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Originally Posted by T Bone View Post
First I have no financial interest in this....

Would people be interested in RPI or another company to develop an underdrive pulley for the S65 engine?

A similar product for the M5 / M6 S85 can be found here. This appears to be cheapest mod to get HP. 28 RWHP on the V10 for <$500.

Vote.... show them they should develop for the M3.

Stupid question--but why wouldn't the factory do this if it was easy hp? I assume you're driving all the accessories (alternator, steering pump, water pump, AC pump, etc.) slower. Doesn't sound like a good idea under some conditions. Never considered these so havn't looked into them.

Greg Lake Oswego, Oregon, USA
2015 M4 Coupe - Silverstone/Sakhir/CF
2012 ML350