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Old 03-20-2006, 09:40 PM
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Originally Posted by 98camaroLS1M6
What material is the march made out of and what would make it better than an ASP pulley. Would the gains be more or less than an ASP?
The ASP is probably the lightest compared to others, but is not known for it dampening ability. I dont know but I am leaning towards the March damper as the best in damping and it doesnt throw belts as others.Furthermore,the march has a fluid based center, which will not cause spark sensors to retard the timing which results in power loss .

which material? not really sure.
Old 03-20-2006, 09:50 PM
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Does the slp have a good dampening ability? Also, is the march lighter than stock?
Old 03-24-2006, 12:33 AM
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I'm thinking about ordering one from TSP.
Old 03-24-2006, 12:41 AM
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Originally Posted by 98camaroLS1M6
Does the slp have a good dampening ability? Also, is the march lighter than stock?
yes its lighter, atleast that's what logic tells me from what i've read on UD pulley's......so you guys suggest march over ASP? what about march vs. slp (let's also compare best bang for back with that, i assume SLP's is much more) when putting on an UD pulley do you need a new belt also since it seems to me the stock belt would be loose? thanks.
Old 03-24-2006, 12:35 PM
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What problems could happen when putting a pully on a LS1?

What exactly is a pully?

Im dumb.

I was also looking into buying one but I would like to know what it is first.
Old 03-24-2006, 12:57 PM
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can someone go more into depth about putting the UD pully into an A4?
You need to buy an OD pully too?
Old 03-24-2006, 06:31 PM
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Originally Posted by 99camarosupersport
yes its lighter, atleast that's what logic tells me from what i've read on UD pulley's......so you guys suggest march over ASP? what about march vs. slp (let's also compare best bang for back with that, i assume SLP's is much more) when putting on an UD pulley do you need a new belt also since it seems to me the stock belt would be loose? thanks.
I am wondering the same thing. Anyone?
Old 03-24-2006, 06:48 PM
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i should be getting my slp ud pulley soon ill weigh it if anyones interested...i went with slp because of the thicker walls...had a previous experiance with another brand on another car where the belt would jump off every couple hundred miles...
Old 03-24-2006, 07:54 PM
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Has anyone had belts fall off w/ the ASP and or March UD pulleys? I would rather go w/ an ASP or March if they are lighter or better than SLP in any way...
Old 03-24-2006, 08:42 PM
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Ok call me the retard :0 Won;t be the first and I wear the name well What does dampening do or mean in regards to the above post..

"The ASP is probably the lightest compared to others, but is not known for it dampening ability."

Thanks. Be kind to the stupid
Old 03-24-2006, 10:03 PM
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powerbound and SLP are the same, I would get the powerbond, I think they make the slp piece
Old 03-24-2006, 11:41 PM
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Originally Posted by JDJP
can someone go more into depth about putting the UD pully into an A4?
You need to buy an OD pully too?

You can go to www.ls1howto.com.

pretty sure youll find some info there on the install.
Old 03-25-2006, 01:04 AM
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Originally Posted by kartoon
You can go to www.ls1howto.com.

pretty sure youll find some info there on the install.
I didn't see anything on there about underdrive pulley install
Old 03-25-2006, 01:12 AM
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Originally Posted by prostock_bigblock
"Overdrive" pulley will solve the problem for A4`s. th OD pulley job is to bring back the alternator speed to its previous stock levels and this will solve the problems in Autos.
Seems as though everyone's guessing on the A4s...

Is there a gain on A4? dyno proof? not I can feel the difference...

Then there's this OD pulley question, do you really need an OD pulley?

"prostock_bigblock" sais you do, but there's a lot of guys on here that running the u.p. without the o.d.
Old 03-25-2006, 02:32 AM
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Originally Posted by SLP LS1
Seems as though everyone's guessing on the A4s...

Is there a gain on A4? dyno proof? not I can feel the difference...

Then there's this OD pulley question, do you really need an OD pulley?

"prostock_bigblock" sais you do, but there's a lot of guys on here that running the u.p. without the o.d.
well in my previous 98z28 A4 I ran only UD pulley and no charging problems at all , but ppl with sound systems will find some charging lose and will need th OD pulley.

gains r between 7-13RWHP .
Old 03-25-2006, 02:42 AM
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Personally I don't think the SLIGHT weight difference between the steel SLP/powerbond pulley and the lighter aluminum pulley's will make a hp difference. I think the size of the pulley is where 99.99999% of the gains come from. As far as spark knock, the steel powerbond pulley won't distort over time like some of the aluminum pulley's have and cause KR. The SLP site says that the powerbond pulley won't cause KR, and it doesn't. I have the SLP pulley and data logging show's that I definately don't have any KR issues.
Old 03-25-2006, 05:46 AM
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I've had my ASP pulley installed for four years with no belt-jumping and no KR. I thought it was a worthwhile investment...
Old 03-25-2006, 08:33 AM
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how much does it cost for the new belts, and should I really be expecting anything close to a 2mpg gain? Cause that would be pretty awesome.
Old 03-25-2006, 04:46 PM
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you only need one belt, and i bought a gatorback today and those are the higher costing belts from autozone, and it was 32 bucks
Old 03-25-2006, 04:51 PM
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Originally Posted by fire_boy06
What exactly is a pully?Im dumb.
I was also looking into buying one but I would like to know what it is first.
Go here for install instructions.
http://www.bowlingss.com/Mods/Instal...e%20Pulley.mht

Bill



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