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  • underdrive pulley

    how much more power do you get with underdrive pulleys?

  • #2
    Re: underdrive pulley

    I think I heard it frees up about 5-10 HP.

    1998 White Camaro 3800, A4, MagnaFlow Cat-Back, Zexel & 3.42's, Jet Chip Stage 2, Whisper Lid, and Ram Air.

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    • #3
      Re: underdrive pulley

      is that 5-10 at the motor or the wheels

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      • #4
        Re: underdrive pulley

        Not sure, I think its just 5-10 HP, no RWHP. It won't be a huge gain, but it help s with other upgrades.

        1998 White Camaro 3800, A4, MagnaFlow Cat-Back, Zexel & 3.42's, Jet Chip Stage 2, Whisper Lid, and Ram Air.

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        • #5
          Re: underdrive pulley

          do I have to buy a different size belt or can I use my old one.

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          • #6
            Re: underdrive pulley

            They don't shrink a ton you should be able to get away with your factory sized belt, but if it wont fit, its only a few bucks, and a quick messurement to get one that will. Just remember your battery doesn't charge unless you are above 1500rpm or something like that.
            1995 Camaro 3.4 A4<br /><br />CAI,IAT Relocate

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            • #7
              Re: underdrive pulley

              The factory belt will NOT work. You will need a smaller one. Sorry, I dont remember which size but I know the factory one will not work.

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