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Best underdrive pulley?

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Old Jan 14, 2006 | 12:16 PM
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Default Best underdrive pulley?
Did some searching last night but didn't come up with squat, maybe I was searching for the wrong word(s) who knows

Anyhow what's everyones opinion on the best underdrive pulley out there (ASP, SLP, Powerbond, etc)? I'm wanting to get one soon and don't like cheap (not $$ wise but quality wise) **** on my vehicles because you'll pay twice as much in the end. Thanks.
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Old Jan 14, 2006 | 12:45 PM
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i have asp w/ no problems
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Old Jan 14, 2006 | 12:49 PM
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ASP here as well.

Seems to be the most popular choice on here.
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Old Jan 14, 2006 | 12:52 PM
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Originally Posted by Lithium
ASP here as well.

Seems to be the most popular choice on here.
Do either of you use the alternator pulley as well or just the U/D?
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Old Jan 14, 2006 | 01:32 PM
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Asp is lighter, SLP weighs the same as the stock pulley. I think the SLP looks better though. My bro has asp in his 00 SS. I heard the asp has to be modified to install a cam.
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Old Jan 14, 2006 | 01:40 PM
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Originally Posted by blazinws6kush
Asp is lighter, SLP weighs the same as the stock pulley. I think the SLP looks better though. My bro has asp in his 00 SS. I heard the asp has to be modified to install a cam.
True. But only with the double roller timming chain. Still then the newer version of the asp pulley(SFI appoved)will fit. Its the older ones that need to be modified.
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Old Jan 14, 2006 | 02:02 PM
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Originally Posted by Slammed99s10
Do either of you use the alternator pulley as well or just the U/D?
I got the alternator pulley as well. No problems at all and only like 22 bucks I believe.
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Old Jan 14, 2006 | 03:07 PM
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March is the best IMO..

J
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Old Jan 14, 2006 | 03:49 PM
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Originally Posted by Lithium
True. But only with the double roller timming chain. Still then the newer version of the asp pulley(SFI appoved)will fit. Its the older ones that need to be modified.
So if I understand you correctly the newer version of the asp won't need to modified to fit a double roller chain? I do plan on upgrading the oil pump and chain when I get a cam done. Did asp change the part #'s between the non sfi and sfi approved or is there a visual difference between the two?
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Old Jan 14, 2006 | 04:26 PM
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From what I have heard the newer version of the pulley is the one with the SFI sticker on it. Mine fit fine cause I bought it at the begging of last year.

Not sure on the part numbers, I am guessing its the same. There is a visual difference here is a pic ----->

http://www.ls1howto.com/howto/fbody/...p_machined.jpg

Do you have the pulley already? or are you planning on buying one later on.
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Old Jan 14, 2006 | 04:52 PM
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Originally Posted by bmfcamaro
i have asp w/ no problems
same here... you don't need the alternater one unless you have a HEUGE stereo or something like that that sucks a lot of juice.
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Old Jan 14, 2006 | 05:02 PM
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Originally Posted by Lithium
From what I have heard the newer version of the pulley is the one with the SFI sticker on it. Mine fit fine cause I bought it at the begging of last year.

Not sure on the part numbers, I am guessing its the same. There is a visual difference here is a pic ----->

http://www.ls1howto.com/howto/fbody/...p_machined.jpg

Do you have the pulley already? or are you planning on buying one later on.
Naw just looking into which one to buy and plan ahead so I won't have to replace parts later on.



Originally Posted by GTObsessor
same here... you don't need the alternater one unless you have a HEUGE stereo or something like that that sucks a lot of juice.
Big stereo & sucking juice those days are over with, plus more stereo = more weight = slower LOL.
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Old Jan 14, 2006 | 05:09 PM
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Oh, then when you buy the ASP you will be fine.
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Old Jan 14, 2006 | 05:42 PM
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Originally Posted by Slammed99s10
Naw just looking into which one to buy and plan ahead so I won't have to replace parts later on.





Big stereo & sucking juice those days are over with, plus more stereo = more weight = slower LOL.
Haha... same here... had some heuge subs in my Trail Blazer... but I wanted something fun... no need for that slow gas sucker in So Cal... oh yah... and True Duals make for a nice sound system
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Old Jan 14, 2006 | 08:55 PM
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Originally Posted by Slammed99s10
Do either of you use the alternator pulley as well or just the U/D?
i did not. i didnt want to have any charging issues. buy a gatorback belt to go with whatever pulley. dont learn the hard way.
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Old Jan 14, 2006 | 09:01 PM
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Originally Posted by GTObsessor
same here... you don't need the alternater one unless you have a HEUGE stereo or something like that that sucks a lot of juice.


You need the overdrive for a system if you are having charging problems.
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Old Jan 14, 2006 | 10:56 PM
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Originally Posted by Lithium
You need the overdrive for a system if you are having charging problems.
bah joo know what i mean lol... i've got over a 13 volt charge at startup - 25% UD pulley only
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