View Single Post
      08-17-2013, 12:05 PM   #982
pokeybritches
Colonel
pokeybritches's Avatar
United_States
479
Rep
2,782
Posts

Drives: ESS/G-Power Z4M, VF Z4, 996tt
Join Date: Sep 2009
Location: Los Angeles

iTrader: (12)

Garage List
2006 BMW Z4M  [10.00]
2006 BMW Z4M  [8.50]
2003 BMW Z4 3.0i  [9.00]
Quote:
Originally Posted by ZStig View Post
Anyone know if a larger diameter pulley on the air con will hurt it? Maybe shorten its life?
This was the original question.

Quote:
Originally Posted by pokeybritches View Post
http://www.engineeringtoolbox.com/pu...ds-d_1620.html

I would think the danger is in overspeeding the compressor. Figure out the max speed of the compressor off a spec sheet, and then use the formula to calculate the max speed it would see based on 8000 rpm and the pulley diameters.
And here was the answer.
__________________


VF Engineering Z4 3.0i, ESS Z4M, G-Power Z4M, 996 Turbo
Appreciate 0