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Message: <blockquote data-quote="helotaxi" data-source="post: 5072946" data-attributes="member: 550915">The outside air temperature has some effect, too.  I never said nor implied that it had no effect.  It still isn't that efficient which is probably why so many companies have designed forced air cooling for the coil.  Heating the pole and the steel of the motor (which isn't the same as the magnet which has almost NO effect on coil cooing) only does so much for you.  You're not really getting rid of the heat very effectively if you're just moving it in one of the least efficient manners (convective transfer x2) to a material that is a very poor radiating material.  Aren't the fins on the GTi drivers aluminum?  You know, a material that actually does a good job of transferring heat.  Also quite possible that those fins are purely cosmetic...</blockquote>

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