ZZP Underdrive Pulleys? - FirebirdV6.com/CamaroV6.com Message Board

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  • ZZP Underdrive Pulleys?

    Do any of you guys have them on your 3.8s? I want to know if you really feel a difference at all. I'd only get one for the (so they say) 6 RWHP, but I wouldn't get the other because you'd need a longer belt and stuff.

    But, yeah, how do you guys feel about them?

  • #2
    I run the waterpump pulley, I do think it helps, and I have no cooling issues with it. I recommend it, and it might be good for 2-5rwhp I have no idea [img]smile.gif[/img] . It does seem to be fine though, and i know it underdrives it some.
    2002 5-spd NBM Camaro
    Details: www.1lev6.com

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    • #3
      I have had the waterpump pulley for 2 years now I didn't feel any difference if you don't get a longer belt its a real tight fit and my belt has worn about half way through the pulley

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      • #4
        With the Alternator 14% Underdrive Pulley, does it rob you of power for your lights and radio and stuff?

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