Quote:
Originally Posted by hades
I have a question: Don't most people remove the air pump to make room for piping or a single turbo?
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It's not just for single turbos anymore.

I still run stock twins, but for me the point of removing the airpump was for (after emissions delete) the room, weight reduction, convenience and looks. It's been said before, but the advantage for an idler pulley is to keep the stock belt in full contact with the waterpump without having to go to an over-sized (under-drive) pulley set. I autoX but don't track. So I don't spend extended periods of time at high RPM and I don't have a need for the under-drive aspect. Same situation for guys that only street their cars. Not to mention the possible issues during periods of heavy electrical loads at idle.
Chadwick's post is just more reason why I'd rather spend my money on a good idler pulley than an underdrive set. Although I hadn't considered accelerated bearing wear, I have personally seen a guy way over-tighten the belt on his under-drive pulley set because it kept squalling at cold start-up. You could have played a tune on the belt, but hey...they were much prettier than mine.