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      12-04-2008, 01:19 PM   #48
lucid
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Drives: E30 M3; Expedition
Join Date: Apr 2007
Location: USA

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Hey Swamp, thanks for the comparison. I'll respond to your post(s), just busy. At a first glance, 2 clarification questions:

1. Why is the iron rotor volume less than the CC rotor volume given they seem to have the same thickness? (this will actually strengthen your argument if it is a simple data entry error). If this is not an error, does it have to do with the vent geometry?

2. Why did you pick c=800 J/kgK for the CC rotor? Were you able to verif that was the spec for the GT3 back in 2004? I assume you went with the data on the SGL website (I don't know how up to date that is). However, their 2006 SAE presentation is referencing 1350 J/kgK, and 2005 Krenkel paper is stating 1200 J/kgK for the Brembo rotors.
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