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  1. #1
    Registered User sir_2002's Avatar
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    how much boost ?

    I don't know if someone can help me out again for pulley / boost


    so k24a4 crank pulley + stock 4inch pulley what boost will it give?

    i'm looking for about 9-10psi

  2. #2
    Registered User mitchlikesbikes's Avatar
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    Quote Originally Posted by sir_2002 View Post
    I don't know if someone can help me out again for pulley / boost


    so k24a4 crank pulley + stock 4inch pulley what boost will it give?

    i'm looking for about 9-10psi
    you'll need at least a 3.8 pulley to get to 9 psi iirc.

  3. #3
    Registered User sir_2002's Avatar
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    Dam it...
    i need to order it fast i'm supposed to receive my aftercooler this week and start installing it

  4. #4
    Registered User beechstreet's Avatar
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    Your results may vary, but I was making 9.5 PSI with the K20A3 crank pulley & 3.8" SC Pulley. Just changing to the k24a4 CP upped me to 11.5 PSI. So you may be able to reach 9PSI or more with the k24a4 CP and 4.0" SC pulley.

  5. #5
    Registered User sir_2002's Avatar
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    I may try the combo k24 crank pulley and the 4in blower pulley
    Before buying another one

  6. #6
    Kimber Raptor II Drunken Yak inc's Avatar
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    Thanks to the OP for starting this thread. I haven't been able to find anyone that still makes a 3.8" pulley and I want more boost, so I may go the same route.

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