Quote:
Originally Posted by mike nixon
Non A/c cars have a larger diameter w/p pulley than the A/C cars. This accomplishes two things. The first is to spin the W/P faster for better coolant flow. the second is it speeds up the Alternator so it can charge a bit more to keep up with the added draw of A/C.
Mike
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you sure about that, speeding up the alt?
a change in w/p pulley diameter would have no affect on the speed of the alt.
only a larger crank ( or smaller alternator ) pulley would affect its speed.
and now that i read that again, going to a bigger w/p pulley, wouldnt that in fact make it spin slower? it's the same as going to a smaller ( under drive ) crank pulley?