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Thread: DIY for the TGV deletes

  1. #1
    Administrator RCKSTR's Avatar
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    Thumbs up DIY for the TGV deletes

    I'm not one for doing up these DIY wright ups but here we go...

    Tools needed...
    a power drill w/ an 1/8" drill bit
    a socket set w/ 10mm and 12mm
    philips head screw driver
    a sawzall (not a must but makes it easier) w/ metal blade
    dremel tool w/ grinding bit or sanding drum

    1. first off take the drill w/ 1/8" bit and drill out the screws holding the butterfly valves in place then slide the valves out of the way like so. also take the tgv motors off each side using the sockets and screw driver

    and



    2. now you can slide out the rod that was holding the valves in place. this might take a minute to do, I took apart one side and forced the rod through the bearing on one side like so...

    so now it should look like this (see strait through it)


    3. now you can either use a sawzall or a grinder tool to take out the divider. I first used a dremel w/ grinder bit for the first 2 gtvs but then used a sawzall for the last to just to get the dividers out of the way like so. (if using a sawzall, go slow and make sure to not cut too far)



    4. now with the dividers out of the way you can use your grinder or sander bit to smoothen out the sides and get rid of the ruff cut edges

    and repeat that with all 8 cut edges (2 per runner). this should be the outcome


    5. now I know theres alot of people who do this last step differently.
    Plugging the holes on the outside of the tgv's where the rod for the valves once were. I used JB Weld to fill the holes.
    I first put painters tape on the insides of the tgv's to keep the jb weld from leaking through. I did one side of the tgv at a time and let them cure for an hour or two just to make sure they wouldn't drip while I did the other side
    for some reason the pics didn't come out but its kinda easy to figure out.
    Others have threaded bolts into the holes, ect... I found the jb weld easiest to use and from what I read it'll hold up to anything I through at it!!

    its been said that by doing the TGV delete, people have seen a power gain from 10 to 15 whp because of the better air flow. I havn't been dyno'd yet so I can't confirm the power gains...

    If anyone has any questions feel free to shoot me a PM and I'll try my best to help you out! and sorry for the noobie wright up, I tried my best haha
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  2. #2
    The Busballah
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    Flapper wheel would work good for smoothing out the insides of them really well.
    rubber baby buggy bumpers!

  3. #3
    Post Whore Robk0000's Avatar
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    what do they do, i mean do they actually have a function, its pretty much mimicking the throttlebody flap isnt it?
    09 Wrx Hatch Stg II - Electrical guru

  4. #4
    Founding Father/SCS Original
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    They help with emmisions on cold start up.

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    2.5T kgj996's Avatar
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    Nice write up! I need to do mine soon.

  6. #6
    2.5T
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    any retune needed after this?

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    2.5T kgj996's Avatar
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    Quote Originally Posted by dzkwrx View Post
    any retune needed after this?
    The lack of tgv motors will throw a cel and not having the tgv's will make it a little rougher to start in the cold, but I don't think any major tuning has to be done. I wouldn't drive it far though, without data logging to make sure everything is ok with the increased air flow. I guess I'll find out this spring when I do my own.

  8. #8
    3.0L Iheartsubarus's Avatar
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    http://forums.nasioc.com/forums/show....php?t=1165948

    here's one that Jeff made a WHILE back! has a lot of great info and pics as well!

  9. #9
    Stage III Donator adam's Avatar
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    i wanna do this

  10. #10
    Administrator RCKSTR's Avatar
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    Quote Originally Posted by kgj996 View Post
    Nice write up! I need to do mine soon.
    thanks, I was really tired when I did it too so I wasn't sure if I screw'd up or not while doing it I looked it over again when I woke up and say it wasnt' too bad
    I've got a few other wright-ups I'm trying to organize before I post them up. if anyone has and idea or wants/needs a specific wright up I'll see if I can either make one or find one and post it up
    and thanks again, it was my first right up...
    Finished/ Hidden Content


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    Next Project: Hidden Content

  11. #11
    Moar Cowbell Pulski's Avatar
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    *wright, right... "Write-up"

    Do mine for me this spring?
    2009 Subaru Outback 2.5i Special Edition -- 2001 Suzuki Bandit 1200

  12. #12
    Founding Father/SCS Original
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    Quote Originally Posted by RCKSTR View Post
    thanks, I was really tired when I did it too so I wasn't sure if I screw'd up or not while doing it I looked it over again when I woke up and say it wasnt' too bad
    I've got a few other wright-ups I'm trying to organize before I post them up. if anyone has and idea or wants/needs a specific wright up I'll see if I can either make one or find one and post it up
    and thanks again, it was my first right up...

    Have you logged yet?

  13. #13
    2.0L ECS Performance's Avatar
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    we have seen 15whp on the dyno from this little mod, great write up!!

  14. #14
    3.0L
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    Quote Originally Posted by ECS Performance View Post
    we have seen 15whp on the dyno from this little mod, great write up!!
    and that was the only mod? I dont believe you

    To the OP talk about what kind of PITA it is to take these out of the car to work on them

  15. #15
    2.0L ECS Performance's Avatar
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    on a stage 4 car with tgv's done properly and polished they give a good amount of gain.

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