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[Z06] Under Drive Pulleys

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Old Dec 18, 2003 | 09:10 PM
  #1  
Atl.Vette's Avatar
Atl.Vette
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From: Powder Springs GA
Default Under Drive Pulleys

Any Z owners out there that have underdrive pulleys?
I'm thinking about adding this to my list of mod's.
I worry about the stop and go traffic in the summer, and if the slower water pump might cause an over heating problem.
Any body have any daily driver problems?
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'03 Black on Black Z06 :auto:
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Old Dec 18, 2003 | 09:31 PM
  #2  
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From: Virginia Beach
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Default Re: Under Drive Pulleys (Atl.Vette)

:lurk: Word of advice I hear the labor is way too much for the gains you'll get (unless you do it yourself). You have to drop the entire steering rack and it'll give you 5-7 rwhp. Most do it when they get a cam put in. That's what I'll do.
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Old Dec 19, 2003 | 07:44 PM
  #3  
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Z06ufgrad2002
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From: Melbourne FL
Default Re: Under Drive Pulleys (Cobra4B)

:lurk: Word of advice I hear the labor is way too much for the gains you'll get (unless you do it yourself). You have to drop the entire steering rack and it'll give you 5-7 rwhp. Most do it when they get a cam put in. That's what I'll do.
:iagree: Way too much work if that is the only thing you are changing. There's no sense in doing it unless you are changing the cam or heads/cam. Three is more to be gained from headers and/or air box.
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Old Dec 19, 2003 | 08:21 PM
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From: Ventura County CA
Default Re: Under Drive Pulleys (Atl.Vette)

I would go with a Meziere Water pump if your going to R&R the pulley's. Heck, even if you don't.
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Old Dec 19, 2003 | 08:52 PM
  #5  
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ZO6Les
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From: Jacksonville Florida
Default Re: Under Drive Pulleys (Z06ufgrad2002)

:iagree: I did it when I had the H&C work done, 10% under pulley with an alternator pulley too.

Les :cheers:
:lurk: Word of advice I hear the labor is way too much for the gains you'll get (unless you do it yourself). You have to drop the entire steering rack and it'll give you 5-7 rwhp. Most do it when they get a cam put in. That's what I'll do.
:iagree: Way too much work if that is the only thing you are changing. There's no sense in doing it unless you are changing the cam or heads/cam. Three is more to be gained from headers and/or air box.
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Old Dec 19, 2003 | 08:58 PM
  #6  
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From: DFW Texas
Default Re: Under Drive Pulleys (ZO6Les)

I too got the underdrive pulley when they did the cam upgrade. Wouldn't of been worth it if they just did the pulley by itself due to labor.
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