Thread: Gearbox ib5 or mtx75 whats best??
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Old Jun 3, 2011 | 10:16 AM
  #32  
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chaffe
Turbocharging Technician
 
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From: Top secret. Mission:Imposible.
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Originally Posted by Rob_DOHC
20mm would make a big difference.

Rough surface area of a 220mm clutch is 1068cm^2
Rough surface area of a 240mm clutch is 1357cm^2

Rob,
and that is assuming they are the same width....
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