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question for 8" crank pulley guys...
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Thread: question for 8" crank pulley guys...

  1. #1
    Senior SCH Member mheinjr's Avatar
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    question for 8" crank pulley guys...

    Boost doesn't start untill like 3,000 RPM's now I was wondering if I install a 8" crank pulley will boost start at like 2,300 or somthing sooner than 3,000?

    Thanks
    Mark
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  2. #2
    SCH Moderator 5150 LX's Avatar
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    I don't have one but when I installed my F-150 pulley boost did come on sooner. Think of it this way, at any given engine RPM level a larger crank pulley will in effect spin the blower pulley faster then a smaller crank pulley at the same RPM.

    Honestly it's been so damn long since I have drove my car I can't recall exactly how much sooner. I am willing to bet that it will be a very noticeable difference.
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  3. #3
    Senior SCH Member lx-convertible's Avatar
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    boost comes on quicker, but its the upper rpm's that you get knocked back in your seat!
    Neil
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  4. #4
    SCH Moderator Goliath5.0's Avatar
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    I second what neil says :D
    Chris...

    Current beast: 1994 Ford Mustang Cobra #379 - slated up for a windsor and some boost

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    #001 8" Crank Pulley Club


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