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  1. #1

    2-4 PSI pulley SC wheel safe on stock motor?

    Hi,

    As title suggests I was wondering if a small pulley upgrade even smaller if available is safe on a stock motor with no supporting mods? Except maybe fuel pump and a better reg or something of the like.

    I'm currently rebuilding my motor to factory spec and wanted a little bit more power for my trouble.

    I see you can get wheels that will up the boost slightly and was wondering if I could get away with it.


  2. #2
    ANTONYUK's Avatar
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    Quote Originally Posted by skeletonbobo View Post
    Hi,

    As title suggests I was wondering if a small pulley upgrade even smaller if available is safe on a stock motor with no supporting mods? Except maybe fuel pump and a better reg or something of the like.

    I'm currently rebuilding my motor to factory spec and wanted a little bit more power for my trouble.

    I see you can get wheels that will up the boost slightly and was wondering if I could get away with it.
    110-109 mm pulley (stock fuel system)
    106-100 mm pulley (mod fuel system)

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  4. #3
    Kamaki's Avatar
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    ANTONYUK.
    When use 106-100mm pulley do you have any good startingpoints/tips/experiences of fuel updates. Required pressure and flow etc.?
    Last edited by Kamaki; 01-31-2017 at 01:25 PM.

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    ANTONYUK's Avatar
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    Quote Originally Posted by Kamaki View Post
    ANTONYUK.
    When use 106-100mm pulley do you have any good startingpoints/tips/experiences of fuel updates. Required pressure and flow etc.?
    big fuel pump
    FPR
    AFR sensor
    free time to test

  6. #5
    Kamaki's Avatar
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    Quote Originally Posted by ANTONYUK View Post
    big fuel pump
    FPR
    AFR sensor
    free time to test
    Okay thanks. How much higher fuel pressure than the standard 300-310 is required and what should the AFR value lie in order to be optimally.

  7. #6
    ANTONYUK's Avatar
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    Quote Originally Posted by Kamaki View Post
    Okay thanks. How much higher fuel pressure than the standard 300-310 is required and what should the AFR value lie in order to be optimally.
    safe AFR 11.8-12
    fuel pressure for this value

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