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Underdrive pulley

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Old 12-10-2008, 08:46 PM
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Default Underdrive pulley

Well basically it's almost Christmas and I would like to buy my self something. I was thinking about an underdrive pulley and a thermostat. Will a pulley benefit me a lot with the mods I have listed in sig? How much will an install cost roughly? I was thinking about the BBK SFI Underdrive Pulley Kit. All help appreciated.... thanks!
Old 12-10-2008, 09:00 PM
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slps/powerbonds are the same and i think they can be had for around 200. summit sells one around like 175 and i think asps are like 220-240. do some searching on the specifics of each. figure in another 30 to 40 for shorter belts. i would think they are good for a solid 5 hp but who knows maybe 10.
Old 12-11-2008, 09:09 AM
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Get the BBK/eBay/Summit Racing pulley on eBay. It should be cheaper.
Old 12-11-2008, 09:46 AM
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I believe that I got my Powerbond from Speed, Inc for about $150.
Old 12-11-2008, 09:52 AM
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i got the ASP pulley and happy with it. but i would suggest the SLP pulley. it looks like a good piece.
Old 12-11-2008, 09:57 AM
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Originally Posted by TXZ28LS1
i got the ASP pulley and happy with it. but i would suggest the SLP pulley. it looks like a good piece.
I have an SLP pulley it is very nice however the nice chrome finish (or whatever material that is) is chipping and cracking. It will soon look like my stock ugly Pulley. For that ONLY I recomend ASP since my experience power wise and headache wise has been painless.
Old 12-11-2008, 09:58 AM
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Does anyone have weights of the SLP and ASP units?

My ProSport (eBay/Summit Racing/BBK) 25% underdrive pulley weighed 11.5lbs.
Old 12-11-2008, 11:33 AM
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I got my powerbond pulley from Texas Speed. They sold me the pulley & necessary belts together. Forgot the price, but remember it was a little cheaper than everyone else.
Dont waste your money on a t-stat. Typically, you can address any cooling issues by getting your fan settings changed (which you will have to do anyways for a lower t-stat). So unless for some reason your enging is running ridiculously hot, its not necessary.
Old 12-11-2008, 12:17 PM
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the powerbond is a very good pulley...i got it from Texas speed they also have the belts there
Old 12-11-2008, 12:39 PM
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I got mine from texas speed also along with the belt and new bolt. You won't need a new a/c belt with the powerbond pulley.
Old 12-12-2008, 08:03 AM
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I've been reading up on pulleys and i have found that they can crack your block! Now I'm kinda scared Cause this is my DD.
Old 12-12-2008, 08:35 AM
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Originally Posted by KroMiniX
I've been reading up on pulleys and i have found that they can crack your block! Now I'm kinda scared Cause this is my DD.
I have never heard anyone with such a problem in my years playing around with cars. And I'm sure you won't find anyone here who had such a problem.
Old 12-12-2008, 10:09 AM
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Originally Posted by KroMiniX
I've been reading up on pulleys and i have found that they can crack your block! Now I'm kinda scared Cause this is my DD.
Where have you read this?
Old 12-12-2008, 06:54 PM
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Originally Posted by KroMiniX
I've been reading up on pulleys and i have found that they can crack your block! Now I'm kinda scared Cause this is my DD.
So a cracked block would be ok if it wasnt your DD?
Sorry, couldn't resist. But seriously though, I've never heard of this. Ever. I've put 30k miles on my pulley, no problems. There are plenty of others on this board w/ the same experience as me. It'll be fine.
Old 12-12-2008, 08:08 PM
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ok so you guys are saying powerbond and texas speed sells the belts too I'm going to give them a call.
Old 12-12-2008, 10:27 PM
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Originally Posted by on2
Does anyone have weights of the SLP and ASP units?

My ProSport (eBay/Summit Racing/BBK) 25% underdrive pulley weighed 11.5lbs.
I run a March cause I like the dampening qualities but IIRC ATI is the lightest out there. Like I say IIRC......LOL




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