March serp belt pulleys with factory brackets

rmchrgr said

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I ran the car a little this morning and watched the fan belt. You can see it vibrating between the alternator pulley and the crank pulley at idle and then it smooths out as the revs climb. I don't think the vibration necessarily goes away either, it's just going faster. Not sure if that's right or not. It's curious what you see when you start really looking at this stuff.

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My car did this same thing....I'm just sayn, I would try a wider belt before you drop $$$ on a March setup, unless you are just trying to justify the cost of buying the March setup. Take your belt into Autozone, hand it to the parts guy and tell him you want a belt like this (V-belt, approximately the same length) only wider. You should be able to get 1 or 2 different sizes to try out. New V-belts are only 5-10 bucks and a March setup is over 350 bucks...I know what I would try first.

On the RPM front, mine will stay on the car at 7k, although I think surviving the converter flash is probably what's hardest for the belt....especially with an 8" converter that flashes to 5000+ almost instantly (using my car as an example). JMO.