2006 wrx build
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This is a discussion on 2006 wrx build within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; Building my 2006 wrx. Wanted to get some opinions before I start. Current setup: Sti tmic Cobb sf intake Stromung ...

  1. #1
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    2006 wrx build

    Building my 2006 wrx. Wanted to get some opinions before I start.

    Current setup:
    Sti tmic
    Cobb sf intake
    Stromung dual tip turboback.
    Exedy stage2 clutch, lightweight flywheel
    Cobb ap, dynotuned 265whp/326wtq @16.9psi

    Starting with motor work, and breaking it in on my current setup.

    Motor:
    JE 100mm pistons
    Brian Crower rods
    Brian Crower 272 stage2 cams
    Brian Crower springs/retainers kit
    Resurface heads
    ACL race bearings
    ARP headstuds
    Gates timing belt

    Turbo: eyeballing the Tomioka td-06 20g twin scroll kit
    Or Garrett gt3071r

    Supporting mods:
    Walbro 255 fuel pump
    Injector dinamics 1000cc injectors (e85 in the future)
    Turbosmart recirculating blow off valve
    Turbo XS fmic
    Grimspeed boost solenoid
    Tune

    Have I forgotten anything?

    Goal:
    I'd like to be somewhere around 350-400whp/wtq.
    I am aware of the 5spd not being the strongest, but I don't plan on hammering it. Atleast not until I swap a 6spd

    Open to some opinions and tips from people who have done similar builds

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  3. #2
    Moderator Donkey's Avatar
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    I would get the heads ported /polished and TGV deletes with the Grimmspeed 8mm phenolic spacers. Upgrade the fuel lines.


    Sent from my magic banana
    Last edited by Donkey; 04-12-2013 at 10:03 AM.
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    Quote Originally Posted by Donkey View Post
    I would get the heads ported /polished and TGV deletes with the Grimmspeed 8mm phenolic spacers. Upgrade the fuel lines.


    Sent from my magic banana

    *Forgot to add port/polish.
    And also, I'm hearing mixed thing about tgv deletes. Do you have any experience with them?

    Thanks,

  5. #4
    Moderator Donkey's Avatar
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    Quote Originally Posted by Newbie123 View Post
    *Forgot to add port/polish.
    And also, I'm hearing mixed thing about tgv deletes. Do you have any experience with them?

    Thanks,
    What mixed things are you hearing? In my eyes they are only a performance restriction. I'm not sure I have ever heard anyone regret doing TGV deletes. I ran them on my 02 WRX.
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  6. #5
    zax
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    Quote Originally Posted by Donkey View Post
    What mixed things are you hearing? In my eyes they are only a performance restriction. I'm not sure I have ever heard anyone regret doing TGV deletes. I ran them on my 02 WRX.
    This. TGV deletes is an excellent mod... and if you do your own port and polish with block off plates, the best $70 you can spend.

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  7. #6
    Registered User frenziedcage's Avatar
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    You're on a stage 2 clutch personally not something I'd do but if it floats your boat go for it especially since you're running s2 on a stock 5spd. In theory you want your clutch to be the weakest part not anything else.

    As for the fuel pump 255lph would work but I personally would eyeball something a bit bigger Especially if you are gonna run e85 on gt3071r

    For the boost solenoid I'd recommend doing a hybrid setup much more efficient.

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