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Underdrive Pulley Owners???

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Old Jan 11, 2007 | 12:56 PM
  #21  
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Originally Posted by dpw41285
asp makes slp pulleys from what i remember
Actually Powerbond makes the SLP pulley.

And from what I heard it was the Old ASP pullies that had problems with the double roller.
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Old Jan 11, 2007 | 02:43 PM
  #22  
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Originally Posted by dpw41285
not positive why you cant use it with a double roller i just remember my buddy pulling a slp one of and i wanted to buy it and he said it wouldnt work because i was gonna run the double...hence the reason he took it off anyways. i trust him 100% asp makes slp pulleys from what i remember
was in on a corvette? because i read they have to be machined to work with a double roller, the f bod version as far as i know has no issues... its working on my car, unmodified.

the corvette one i guess hase a deeper lip and goes further into the engine, why the back part of the pulley has to be machined off if using it on a vette.
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Old Jan 11, 2007 | 05:22 PM
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I have an ASP 25%, no problems at all. The only problems I've seen recently were people having their belts fly off with the March.

Stock alternator pulley is fine unless you have a big stereo.
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Old Jan 11, 2007 | 05:28 PM
  #24  
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Originally Posted by dpw41285
if a couple is a solid 10+ your correct. do it with the cam, slp you cant do a double roller. asp you can.

I have a double roller. They had that problem with the early ones. People had to machine down the inside face of the pully where it went onto the crank. Could be done on a bench grinder. But that problem has not been for years.
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Old Jan 11, 2007 | 05:30 PM
  #25  
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ASP pully's had some issues with belt slippage. The March, Powerbond & SLP are all the same pully. They have a larger lip to help retain the belt. The belt slippage problem is easily cured with a Katech tentioner pully.
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Old Jan 11, 2007 | 05:30 PM
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10rwhp is the national average BTW. Fully worth it when doing a cam swap. UD pullies will also extend the life of your accessories by 25% if you think about it.
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Old Jan 11, 2007 | 05:31 PM
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I think the most noticeable thing is the free revving of the engine and the better gas mileage. I have the ASP ud pully and the Meziere EWP. Do both while you are in there. I love my setup and think you will love yours also. I get over 34 mpg on the eway in 6th gear cruise set at 80 with the ud pully and ewp. Good luck.
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Old Jan 11, 2007 | 05:31 PM
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Originally Posted by allngn_c5
I think the most noticeable thing is the free revving of the engine and the better gas mileage. I have the ASP ud pully and the Meziere EWP. Do both while you are in there. I love my setup and think you will love yours also. I get over 34 mpg on the eway in 6th gear cruise set at 80 with the ud pully and ewp. Good luck.

Rest of my mods are in my sig, if you are curious.
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Old Jan 11, 2007 | 06:04 PM
  #29  
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Originally Posted by allngn_c5
I think the most noticeable thing is the free revving of the engine and the better gas mileage. I have the ASP ud pully and the Meziere EWP. Do both while you are in there. I love my setup and think you will love yours also. I get over 34 mpg on the eway in 6th gear cruise set at 80 with the ud pully and ewp. Good luck.
havent really checked into a EWP but damn 34mpg sounds nice haha
be nice to have 2 more gears haha
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Old Jan 11, 2007 | 07:14 PM
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Originally Posted by lsx24
Actually Powerbond makes the SLP pulley.

And from what I heard it was the Old ASP pullies that had problems with the double roller.
Originally Posted by davered00ss
I have a double roller. They had that problem with the early ones. People had to machine down the inside face of the pully where it went onto the crank. Could be done on a bench grinder. But that problem has not been for years.
i was going from a very tired memory
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Old Jan 11, 2007 | 08:38 PM
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i really dont understand why people talk about them having charging problems with A4's... but then again im not you typical automatic
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Old Jan 12, 2007 | 12:23 PM
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i have mild h/c set up and all bolt ons besides a u/d pulley. the car has been tuned to my current set up, and runs great....my question is, if i add a pulley will i benefit from any touch up tune?

thanks
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Old Jan 12, 2007 | 12:27 PM
  #33  
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well i leaning towards the asp since it seems their slippage issues have been corrected and because they offer that overdrive pully to mach it and that sounds like the safe thing to do.
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Old Jan 12, 2007 | 12:35 PM
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Originally Posted by ilirw325
i have mild h/c set up and all bolt ons besides a u/d pulley. the car has been tuned to my current set up, and runs great....my question is, if i add a pulley will i benefit from any touch up tune?
You shouldn't need a retune if all that was different was the pulley, it's probably not worth it.
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Old Jan 12, 2007 | 12:35 PM
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Originally Posted by ilirw325
i have mild h/c set up and all bolt ons besides a u/d pulley. the car has been tuned to my current set up, and runs great....my question is, if i add a pulley will i benefit from any touch up tune?

thanks
No you will not need any kind of tuning work, nor will you benefit from any from a touch up. You will however gain about 10rwhp, throw on an EWP at the same time and you'll have a nice 15-20rwhp gain and need no tuning.
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Old Jan 12, 2007 | 12:48 PM
  #36  
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so its not worth it if u dont plan on doing a cam in the near future? I WANT to but money and family dictates what i can and cannot afford so im lookin for the cheaper stuff right now. So where is a good place to get and EWP with the pulley?
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Old Jan 12, 2007 | 12:51 PM
  #37  
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OK, so i noticed on LMPerformance that they sell a ALT and UD pulley package for $219, is this the right one?
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Old Jan 12, 2007 | 12:58 PM
  #38  
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Holy ****, that damn EWP is a FUGGIN rip off!!! 500+ is to damn much for maybe 10hp!!!
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Old Jan 13, 2007 | 10:29 AM
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I've got a Powerbond pulley on my A4 and have had no problems with charging, etc. I added it when the car was in for cam and headers, so I couldn't tell you dyno or sotp gains.
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Old Jan 13, 2007 | 05:01 PM
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I have the ASP on my car and it picked up a little bit of power. The throttle response is slightly better. No problems with charging.
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