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      12-08-2012, 05:15 PM   #18
beta
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Drives: 2006 M Roadster
Join Date: Mar 2011
Location: CA

iTrader: (2)

@inTgr8r: as finnegan said: price and history. My diff only has 25k miles, I know its full history. About the price, buying new R&P from bmw motorsport, shot peen + rem + installation is going to be in the neighborhood of 1k. Way cheaper than diff swapping.

As for 3.91 vs 4.10. I went the conservative route because my build is about the ultimate roadster, so I try to balance creature comforts, mileage, performance, etc.

@Dammmittt: top speed should not be affected by 4.10. With 4.10 gears in 6th @ 8k rpm you'd be going a theoretical 175mph. There's a discussion here that goes into it, but that should be as fast as the car can go without FI.

@marinb: REM was $95. Might be able to get it a bit cheaper if you say we referred you, I'm sure Weddle will appreciate the repeat business.
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Last edited by beta; 12-08-2012 at 05:25 PM..
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