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Thread: best 4.2 mods

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  1. #1

    best 4.2 mods

    Im sure you all will want to know what you can do to give your 4.2 a little extra help

    here are a few ideas.... as this section grows Im sure there will be more ideas and more in depth instruction

    CAI (bought or custom ask for details?)
    E-fans
    Tuners ( x-cal with custom tunes)
    Under Drive Pullleys
    exhaust
    " T "

    2001 S/Cab XLT 4.2 5spd
    CAI, SI/DO Flowmaster 44
    PTM Grille, 04-08 badges

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  3. #2
    'Merica Capone's Avatar
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    Does Justin from VMP tune 4.2s?
    Jay

    | 2007.5 GMC Sierra LMM w/ EFI Live | "Limped it twice...needs a Suncoast" |

  4. #3
    Quote Originally Posted by Capone View Post
    Does Justin from VMP tune 4.2s?
    Yep... from what I hear he's got some great tunes for them too!!

    2001 S/Cab XLT 4.2 5spd
    CAI, SI/DO Flowmaster 44
    PTM Grille, 04-08 badges

  5. #4
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    Quote Originally Posted by 4.2Paul View Post
    Yep... from what I hear he's got some great tunes for them too!!
    Yeah, Justin does amazing works for just an email tune! I wish I had the time and money to get a dyno tune from him.

    He even followed up with me to make sure everything was working properly with the tunes and xcal.
    2001 Ford 4.2L w/ 4R70W
    http://www.fullthrottlev6.com/forums/signaturepics/sigpic5706_3.gif
    Gallery of my 4.2My Youtube Truck VideosMy Cardomain Page
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    Screen-FX <------------ Click me to see some really cool stuff

  6. #5
    Im geared LOW for more torque, i have adrop in air filter and hacked up exhaust.

    Didnt do much to the 4.2L cause ill be replacing it next year with a 3.9L Cummins.

    im still thinkin about TJ's old turbo setup. I have the money just not sure i want to spend it on that.

  7. #6
    Quote Originally Posted by 1tonF150 View Post
    im still thinkin about TJ's old turbo setup. I have the money just not sure i want to spend it on that.
    That wouldnt be a bad way to spend some $$ he was putting up some pretty good #'s running 8psi on stock internals

    2001 S/Cab XLT 4.2 5spd
    CAI, SI/DO Flowmaster 44
    PTM Grille, 04-08 badges

  8. #7
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    Also, look up a DIY mod called the "J-mod"
    2001 Ford 4.2L w/ 4R70W
    http://www.fullthrottlev6.com/forums/signaturepics/sigpic5706_3.gif
    Gallery of my 4.2My Youtube Truck VideosMy Cardomain Page
    ----------------------------------------------------------------
    Screen-FX <------------ Click me to see some really cool stuff

  9. #8
    'Merica Capone's Avatar
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    His tunes did wonders to my F-150...but, I'm running a Gryphon now. Would have gone with Troyer but the turnaround time on the tunes were too long, lol
    Jay

    | 2007.5 GMC Sierra LMM w/ EFI Live | "Limped it twice...needs a Suncoast" |

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