View Single Post
      11-06-2012, 11:44 AM   #71
GaryS
Colonel
24
Rep
2,089
Posts

 
Drives: 2009 135i 6MT
Join Date: Feb 2010
Location: Maryland

iTrader: (0)

Garage List
2009 135i  [3.25]
Quote:
Originally Posted by MteK View Post
The more disc surface area per unit mass ... the faster the heat will be dissipated and the more efficient the entire system will be.
I haven't heard that part before but it makes sense. So a heavier rotor can absorb more heat, but a lighter one the same diameter can dissipate heat faster.