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What underdrive pulley to buy?

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Old Dec 9, 2008 | 06:57 PM
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Default What underdrive pulley to buy?

I am looking to buy a 25% pulley but really dont know which kind to buy. I have been looking at ASP, SLP, and Powerbond. Just wanting to know some opinions on which one to purchase. What is the cheapest but performs good too! So what I am really wanting to know is some prices and where to purchase a underdrive pulley? Thanks!
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Old Dec 9, 2008 | 07:22 PM
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wait for some of the holiday specials as they are all about the same. Get the cheapest one. make sure you get a new belt too. stocker won't work
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Old Dec 9, 2008 | 07:30 PM
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Originally Posted by black01_WS6
wait for some of the holiday specials as they are all about the same. Get the cheapest one. make sure you get a new belt too. stocker won't work
I found an ASP pulley kit on summitracing.com for $217.69. I also have a $50 dollars off coupon. Would this be a good price? This also comes with the alternator pulley. Here is a link to the site: http://store.summitracing.com/partde...198+4294924667 Thanks
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Old Dec 9, 2008 | 09:39 PM
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That is a good deal, but I don't know if you want to get the alternator pulley for an A4 though.
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Old Dec 9, 2008 | 09:48 PM
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I have the Powerbond on my car.
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Old Dec 9, 2008 | 11:39 PM
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SLP here
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Old Dec 10, 2008 | 01:35 AM
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The powerbond is the SLP pulley. Out of those choices, I would go with ASP because it is lighter. I prefer the March pulley over anything though. IMO it is the best fluid damper with more than a 10% underdrive.
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Old Dec 10, 2008 | 06:27 AM
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powerbond/slp is the same pulley. asp seems to be the lightest unit from what i heard. i got a powerbond bc i got a good deal on it and it has a really high belt retention wall that i liked.
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Old Dec 10, 2008 | 12:02 PM
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Originally Posted by jetlag
I have the Powerbond on my car.
+1 i heard this one rusts but i had mine for maybe a year and no rust yet! looks brand new
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Old Dec 10, 2008 | 12:05 PM
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ASP is slightly lighter than a powerbond.

Powerbond has always looked higher quality to me and has a very high belt retention wall that would make it hard for the belt to come off even with a stretched/slightly loose belt.
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Old Dec 10, 2008 | 12:21 PM
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If you are worried at all about throwing a belt, go with SLP. If you could care less get an ASP. Not to say you will throw a belt with the ASP but it is more likely due to its small retaining walls.
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Old Dec 10, 2008 | 12:35 PM
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ASP here, no issues so far.
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Old Dec 10, 2008 | 02:11 PM
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Summit Racing brand
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Old Dec 10, 2008 | 02:51 PM
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I went with the slp because of the higher wall. I'm not really concerned with a few pounds i'd rather not have to change belts. Not that you will but the probability is higher with the asp.
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Old Dec 10, 2008 | 02:58 PM
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You will be happy with the ASP or Powerbond pulleys. Pick the one you like better. ASP often has issues with pulleys not being in stock which is why most people go with the Powerbond instead.

We sell both and no problems with either as long as they were installed correctly.
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Old Dec 10, 2008 | 03:09 PM
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I forgot to add that I have the Powerbond.
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Old Dec 10, 2008 | 06:20 PM
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Originally Posted by LS1BLKSS
+1 i heard this one rusts but i had mine for maybe a year and no rust yet! looks brand new
a little high temp clear could solve that before installation.
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Old Dec 10, 2008 | 06:30 PM
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I have the Summit underdrive pulley, it was cheap and is certified. Sweet lookin piece too.

Here it is, $159.95 http://store.summitracing.com/partde...5&autoview=sku
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Old Dec 10, 2008 | 06:57 PM
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Originally Posted by 1MeanGreenZ28
I am looking to buy a 25% pulley but really dont know which kind to buy. I have been looking at ASP, SLP, and Powerbond. Just wanting to know some opinions on which one to purchase. What is the cheapest but performs good too! So what I am really wanting to know is some prices and where to purchase a underdrive pulley? Thanks!
Ive got a Powerbond and love it. The only thing I noticed is that the serpentine belt rubs a little on the alternator bracket bolt. But I just filed down the bolt and it works great. The SLP and Powerbond are the exact same pullies, one just costs more *cough*SLP*cough*.
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Old Dec 10, 2008 | 09:27 PM
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sorry i know this is dumb question, what do these underdrive pullys do? Are they for performance or reliability??? is there also such thing as an overdrive pully or just underdrive? what about an alternator pulley??
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