How much boost will the 11's - 13's turbo efficiently produce?
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This is a discussion on How much boost will the 11's - 13's turbo efficiently produce? within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; I'm just wondering what the max for these turbos is. I'm at 20 and a little over here and there. ...

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    How much boost will the 11's - 13's turbo efficiently produce?

    I'm just wondering what the max for these turbos is. I'm at 20 and a little over here and there. I don't know with a TMIC, FP, DP, CAI, 3 port, and OTS tune what else I could add to get that little bit more power, headers are out of the question... to much trouble... just not happening. A protune is 500.00 and I have no clue how much more that would net me over the stage 3 TP tune.
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    IHI doesn't publicly publish their compressor maps. That being said fuel is the main contributor to more boost. Higher octane/E85 or meth injection is really the only way to get more without turbo modification. Or get the turbine wheel clipped or change the turbine housing to a P20 but injectors will be your limitation. If you are looking for more power try TGV deletes,ported/polished exhaust manifolds or a lightened crank pulley.
    Last edited by Donkey; 02-05-2013 at 11:14 AM.
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    Quote Originally Posted by Donkey View Post
    IHI doesn't publicly publish their compressor maps. That being said fuel is the main contributor to more boost. Higher octane or meth injection is really the only way to get more without turbo moddification. Or get the turbine wheel clipped or change the turbine housing to a P20. If you are looking for more power try TGV deletes,ported/polished exhaust manifolds and a lightened crank pulley.
    I'm surprised you mentioned a lightened crank pulley. Any reason why a lightened crank pulley and not a flywheel?
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    How much boost will the 11's - 13's turbo efficiently produce?

    Cost and ease of installation.


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    Quote Originally Posted by Donkey View Post
    IHI doesn't publicly publish their compressor maps. That being said fuel is the main contributor to more boost. Higher octane or meth injection is really the only way to get more without turbo moddification. Or get the turbine wheel clipped or change the turbine housing to a P20. If you are looking for more power try TGV deletes,ported/polished exhaust manifolds and a lightened crank pulley.
    What's a TGV? What about an EWG? Or is that really needed?
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    Quote Originally Posted by Methodical4u View Post
    What's a TGV? What about an EWG? Or is that really needed?
    EWG isn't going to get you that much more boost but could get you alittle more topend. TGV= Tumble Generator Valve.

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    Quote Originally Posted by lokey View Post
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
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    Nom-nom.
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    Quote Originally Posted by Donkey View Post
    Cost and ease of installation.
    Good point. I always feel they get a pretty bad wrap. I personally am just too cheap to try a pulley. I'd love a nice lightweight flywheel though when I do my clutch. That wait for the revs to drop between first and second is a killer =P


    Quote Originally Posted by Methodical4u View Post
    What's a TGV? What about an EWG? Or is that really needed?
    Your EWG setup will come close to a set of equal length headers all said and done. It does make it much easier to tune once you get your turbo dynamics dialed in. I got mine due to some boost creep issues with my catless down pipe.


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    Quote Originally Posted by Donkey View Post
    Cost and ease of installation.


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    does this require a tune? and when would something like this be needed? any gains at stock or stage 1-2 that would be noticeable?

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    Quote Originally Posted by rickyd13 View Post
    does this require a tune? and when would something like this be needed? any gains at stock or stage 1-2 that would be noticeable?
    Are you speaking of the crank pulley? No tune. it's a driveline modification. It would act like a very slightly lighter flywheel, provided I'm not off my rocker. No measurable hp difference.
    Quote Originally Posted by Trainrex
    He was throwing balloons filled with sulfuric acid and shrapnel at the swat team. They finally had to take him down with rubber bullets.
    2011 STi Build Log
    -Part 1 - Reading, Data Logging, and Analyzing Data
    -Part 2 - Turbocharger 101 & Basic Boost Control
    -Part 3 - EcuFlash, Experimental Defintions, and a Drive By Wire Intro

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    sorry i quoted the wrong post i was talking about the grimmspeed Tumble Generator Valve (TGV) Delete Service thats how they have it listed it was in donkeys link

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    but also gains on the pulley would be nice

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