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Thread: Grafton's 07 STi

  1. #61
    SLi Lurker Zangado1's Avatar
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    What an awesome journey your post has taken. Love your detailed pictures as well. Without a doubt the best year / color and model STI.
    1995 AWD Legacy L wagon 5MT (DD)
    2005 Subaru Legacy GT Limited 5MT

  2. #62
    SLi Supporter Grafton's Avatar
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    ^ Thanks

    I've pulled the CAI off the car and gone back to the short ram, every time it rained it would throw a code for the maf voltage, requiring a ecu reset to clear. It'll go back on in the summer, the 4degree above ambient is too good to miss out on.

    Finally got a wide band so that I can monitor the car better and dial the OTS tune in with the intake:




    I've got the 5V out wired into the analog input from the rear O2 sensor so I can log the wideband without needing a laptop and serial cable hooked up.


    Then the multi disk changer died, and I took it apart to attempt to get the disks out and while it was apart I did a color change on the buttons:



    Finally got a turbo blanket from PTP and got around to installing it:




    This is the craziest thing, I left the garage after installing it and did several pulls and quickly pulled back into the garage and was able to touch the turbo heat shield without burning myself.
    2007 Impreza WRX STi
    2012 Impreza 2.0i Premium CVT
    Sold 1997 Legacy L Sedan, 2.5L 12:1 Compression Hybrid, The 'Lego'
    RIP - 2005 LL Bean Outback, The 'Bean' & 1999 Impreza Outback Sport

  3. #63
    SLi Supporter Grafton's Avatar
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    Finally getting close to a Protune, so time to make sure the fuel system can handle it

    ID1000's


    DW300


    Install time
    fuel pump was straight forward, but the supplied wires from DW were a smaller gauge than the stock wires


    Assembled pump assembly


    new vs old injectors:


    using the data from Injector Dynamics until a protune in October, wide band was happy during a pull and looks good in closed loop.

    Moved the AOS to make some more room for a GR intercooler that's waiting to be installed
    GR vs GD intercooler:



    Before AOS move:


    after the IAG rotated turbo / Big intercooler bracket:


    GR intercooler bracket is here:


    I didn't feel like trying to fight with the lower end of the bracket where it would bolt to the TGV's


    GR intercooler installed


    Spliter fitment:



    Going to have to do some work on the spliter to get the most out of the bigger intercooler.
    2007 Impreza WRX STi
    2012 Impreza 2.0i Premium CVT
    Sold 1997 Legacy L Sedan, 2.5L 12:1 Compression Hybrid, The 'Lego'
    RIP - 2005 LL Bean Outback, The 'Bean' & 1999 Impreza Outback Sport

  4. #64
    SLi Supporter Grafton's Avatar
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    Friend of mine picked up a NA long block, and gave me a light weight pulley that was on it





    Finally got the inter-cooler stencil,
    prepped the engine bay


    Stencil applied


    Painting, 3 coats of high temp red caliper paint


    End result:



    Going on the rollers at EFI Logics this Saturday!
    2007 Impreza WRX STi
    2012 Impreza 2.0i Premium CVT
    Sold 1997 Legacy L Sedan, 2.5L 12:1 Compression Hybrid, The 'Lego'
    RIP - 2005 LL Bean Outback, The 'Bean' & 1999 Impreza Outback Sport

  5. #65
    SLi Supporter Grafton's Avatar
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    The big day finally came, got the car up to EFI Logics for a protune by Calvin Dotson of Dotson Tuning.

    Got the car all strapped down


    baseline pull:


    Results


    Before Protune
    265 WHP & 284 WTRQ with some knock in the high rpms
    After
    275 WHP (+10) & 313 WTRQ (+29)
    Knock free and stable AFR

    I've very happy with the way the car is running, much more stable than the bro-tune I had done to get the car "ok" with all the mods it had done.
    Last edited by Grafton; 10-16-2017 at 12:47 AM.
    2007 Impreza WRX STi
    2012 Impreza 2.0i Premium CVT
    Sold 1997 Legacy L Sedan, 2.5L 12:1 Compression Hybrid, The 'Lego'
    RIP - 2005 LL Bean Outback, The 'Bean' & 1999 Impreza Outback Sport

  6. #66
    SLi Lurker Go Mifune's Avatar
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    People say that Mustangs read low so you might have even more power. Good work!
    1996 Outback 5 speed
    1997 Legacy L wagon 5 speed Member's Ride I thread

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  7. #67
    Administrator Huffer's Avatar
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    Great thread. Thanks buddy!
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  8. #68
    SLi Supporter Grafton's Avatar
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    Quote Originally Posted by Go Mifune View Post
    People say that Mustangs read low so you might have even more power. Good work!
    I was happy stock, happier when I went stage 2, but the protune is awesome. I wish I'd have done it sooner

    Quote Originally Posted by Huffer View Post
    Great thread. Thanks buddy!
    2007 Impreza WRX STi
    2012 Impreza 2.0i Premium CVT
    Sold 1997 Legacy L Sedan, 2.5L 12:1 Compression Hybrid, The 'Lego'
    RIP - 2005 LL Bean Outback, The 'Bean' & 1999 Impreza Outback Sport

  9. #69
    SLi Supporter Grafton's Avatar
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    Christmas means car parts, little bit of engine bay dress up:

    2007 Impreza WRX STi
    2012 Impreza 2.0i Premium CVT
    Sold 1997 Legacy L Sedan, 2.5L 12:1 Compression Hybrid, The 'Lego'
    RIP - 2005 LL Bean Outback, The 'Bean' & 1999 Impreza Outback Sport

  10. #70
    SLi Supporter Grafton's Avatar
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    Burnt out my CB on the 48 HRS of Tristate drive, time to upgrade from the masking tape mount. Ordered a Cobra WX ST II CB and a JVC digital reciever.

    Wiring mess, ran a coax extention from the CB to the trunk under the carpet.



    CB and new head unit installed. Had to enlarge one of the ISO/DIN mounting holes to get the cb perfectly lined up, then trim the radio bezel to fit the width of the CB




    Mic installed and wires for AFR gauge cleaned up


    Getting the car prepped for seeing some of the stages of the New England Forest Rally this summer.

    3/16" Thick skid plate from Primitive Racing





    The 1/4" thick mini rear diff protector from Primitive



    Installed



    It clears the fumoto valve






    The important part, sticker installed

    2007 Impreza WRX STi
    2012 Impreza 2.0i Premium CVT
    Sold 1997 Legacy L Sedan, 2.5L 12:1 Compression Hybrid, The 'Lego'
    RIP - 2005 LL Bean Outback, The 'Bean' & 1999 Impreza Outback Sport

  11. #71
    SLi Supporter Grafton's Avatar
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    Last pieces came in for the CB install
    Panavise mount, 2" square tubing end plugs, & CB Mic mount


    Re-enforcement for the mic mount


    Mic mount on the square tubing end


    All assembled


    Installed in car


    Complete
    2007 Impreza WRX STi
    2012 Impreza 2.0i Premium CVT
    Sold 1997 Legacy L Sedan, 2.5L 12:1 Compression Hybrid, The 'Lego'
    RIP - 2005 LL Bean Outback, The 'Bean' & 1999 Impreza Outback Sport

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