Aem Pulleys
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I Ordered Them For 120 Shipped Off Ebay, Aem Pulleys, What Does Underdrive More Mean? Will They Hurt My Engine, I Have A 1.7 Non Vtec, For That Price Im Safe But The Car, Is It Safe For My Car?
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The AEM pulleys are safe and only go on the accessories. They urderdrive, which means the AC, alternator put out less than normal. It may even make the devices last longer cause they don't work as hard. Unless you have a big system, the alternator underdriving shouldn't cause problems.
If you are worried about Alternator output and have a decent size system you can always aquire a high output alternator for about $150, but if you have a decent system that will be a drop in the bucket compare to what you paid for it. Also you could add a grounding kit and that may help a little with the lost power from the alternator.
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Originally Posted by gearbox
The AEM pulleys are safe and only go on the accessories. They urderdrive, which means the AC, alternator put out less than normal. It may even make the devices last longer cause they don't work as hard. Unless you have a big system, the alternator underdriving shouldn't cause problems.
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