pulleys
Teching In
Joined: Oct 2003
Posts: 49
Likes: 0
From: Wichita, Kansas
The overdrive alternator pulley is just to speed up the alt to prevent any possible charging issues. You should be way good on your SS being that it's an M6 (higher idle speed than auto) as long as you don't have an insane aftermarket stereo I would think.
I've got just the crank pulley on my M6 and the only time I notice my battery lower than normal is if I'm at a stop for a while with the rear window de-frost, head & fog lights and blower motor on high. In fact my 2 previous cars had just the crank pulley (they were both autos...a 95 Z28 & 85 Corvette) and if I sat at a light for a while at night, I would just pop it to neutral to raise the idle.
I decided on the "new" SLP pulley (old one had issues with false knock) on account of the high belt retention walls: http://www.slponline.com/view_produc...1&BIG=100221-1 I read that some cars with weak idle tensioners & 25% U/D pulleys had issues with throwing belts at higher RPM's.
The SLP pulley is made in Australia and is available under the name "Powerbond" I believe. If you see a pic of the Powerbond compare it to the SLP to make sure though.
Do yourself a favor and check the sponsors for the best price. I got mine on sale from T-Byrne with a new bolt & both belts for $210 SHIPPED
I've got just the crank pulley on my M6 and the only time I notice my battery lower than normal is if I'm at a stop for a while with the rear window de-frost, head & fog lights and blower motor on high. In fact my 2 previous cars had just the crank pulley (they were both autos...a 95 Z28 & 85 Corvette) and if I sat at a light for a while at night, I would just pop it to neutral to raise the idle.
I decided on the "new" SLP pulley (old one had issues with false knock) on account of the high belt retention walls: http://www.slponline.com/view_produc...1&BIG=100221-1 I read that some cars with weak idle tensioners & 25% U/D pulleys had issues with throwing belts at higher RPM's.
The SLP pulley is made in Australia and is available under the name "Powerbond" I believe. If you see a pic of the Powerbond compare it to the SLP to make sure though.
Do yourself a favor and check the sponsors for the best price. I got mine on sale from T-Byrne with a new bolt & both belts for $210 SHIPPED
Last edited by Ron78Z&01SS; Feb 17, 2005 at 12:34 PM.
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On The Tree
Joined: May 2004
Posts: 191
Likes: 0
From: PA
I had a post this past week about the pulleys and stuff. After reading this post I'm confused. Is the crank pulley the same as the underdrive pulley or what? Someone posted that I should buy the underdrive pulley but here it says the crank pulley. I'm totally lost on which one of the ASP pulleys I need? 
i want to get an underdrive pulley for my 97 formula. how easy is this to put on? will there be any problems associated with getting a pulley? i know i'll have to get a shorter belt, but aren't belts expensive?