[Tony Cram]

Mando,

Jason's right I have mixed up the the sizes for both (Must stop drinking that wine!!). Smaller pulleys give you higher speeds. Your water pump should have an optimum pump curve and that may not be at higher speeds.

The Alternator (my apologies) will struggle to charge if you put a pulley too large on it. ie does not spin fast enough.

Sorry for the confusion I should write these replies late at night.

TC