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Interested in smaller pulley for Roush TVS

Discussion in 'VMP Performance' started by mcduffer7, Feb 9, 2016.

  1. mcduffer7

    mcduffer7 Member Established Member

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    Apr 11, 2010
    Location:
    Illinois
    Ok...I have 2011 5.0 with the Roush TVS, 85mm pulley, 47# injectors, stock Roush airbox. I also now have the 9.5 Aluminator I just put in. I want to go with the 79mm pulley. According to your website it states:

    79MM pulley for Roush 2.3L TVS Supercharger kit on 2011+ 5.0L Mustang.

    Increases boost to ~10psi when stock enclosed airbox is used, +2.5 over stock.

    Supercharger kit comes from Roush with a 90MM pulley that makes 7-8psi.

    The smallest pulley you can run without needing fuel upgrades.

    May be used with pump gas.

    Black anodized aluminum.

    *Ti-VCT settings will change boost, quoted boost numbers based on VMP Tune.

    Just want to make sure I'm good to go with the 79mm pulley with my setup before I make purchase and will this require a tune adjustment? I'm running your VMP tune. Thanks guys.
     
  2. mcduffer7

    mcduffer7 Member Established Member

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    Location:
    Illinois
    I guess VMP doesn't check this site eh?
     
  3. TJ Whelan

    TJ Whelan New Member Established Member

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    Feb 11, 2016
    Location:
    Sanford FL
    Hey,

    Maybe I can shed some light. There are a few changes I would recommend, one being the injectors. The 47 lbs probably won't cut it if you're looking to run that kind of boost. I would definitely upgrade to the ID1000 or the 56lb, if not more depending on the specific tune. Can it? Probably, but I don't really know how effective you're going to be.

    Then a boost-a-pump or fuel system would be beneficial, but it seems like you're wanting to stay with the stock fuel items the kit came with.

    An updated tune is going to be necessary, most likely.
     
  4. mcduffer7

    mcduffer7 Member Established Member

    Messages:
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    Joined:
    Apr 11, 2010
    Location:
    Illinois
    Spoke with VMP. They suggest 56lb injectors, JLT CAI, boost a pump to go with the 79mm.
     
  5. TJ Whelan

    TJ Whelan New Member Established Member

    Messages:
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    Joined:
    Feb 11, 2016
    Location:
    Sanford FL
    Great minds think alike...
     

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