Who has put an M90 on their 3.8?

Discussion in 'SN95 V6 Mustang Tech' started by bobbystang, Sep 8, 2009.


  1. bobbystang

    bobbystang New Member

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    I just put an M90 on my DOHC cobra but i doesnt work right. I figured people that have done an M90 swap on a V-6 might know more about this than the SVT guys. The car starts but dies and makes vacuum instead of boost
    thanks for your help.
    bobbystang
    #1
  2. onebadsixxx

    onebadsixxx New Member

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    You probably have the pulley rotation on the s/c going in the opposite direction. Thats the first Ive heard someone making vacuum instead of boost. Go M112 instead if your gonna add an Eaton to a V8, youll get way more out of it.
    #2
  3. BlownFiveLiter

    BlownFiveLiter have car, will race....wait, it doesn't run

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    You'll pull vacuum at idle. Once you go WOT, you'll make boost.
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