2011 STI Stage 1 93 octane +SF intake negative boost PLEASE HELP - Page 2
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This is a discussion on 2011 STI Stage 1 93 octane +SF intake negative boost PLEASE HELP within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Originally Posted by Animegod Thats what I don"t understand. I had the pedal to floor the whole time. Guess I ...

  1. #16
    Subaru Newb MainFrame's Avatar
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    Quote Originally Posted by Animegod View Post
    Thats what I don"t understand. I had the pedal to floor the whole time. Guess I will do a few more logs. Also if I had an aftermarket downpipe and ran stage 1 still could it damage my engine?
    Quote Originally Posted by Stawgn10 View Post
    Hello; I am no expert or even much of a novice when it comes to reading datalogs, but isn't the datalog posted going from 6100 rpm down to 2300 rpm meaning little/no throttle applied? So it wouldn't show any boost, would it?

    ^this.. your throttle opening angle is like 10% and you're slowing down in that log, not accelerating. Me thinks you hit the button to log after your pull, not before.

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    I believe that is what happened because i had my wife hit the button and she hit it about 4 times. So i just got back from the shop and my STI has a nameless performance downpipe, aftermarket electronic boost control, an axle-back exhaust system,SF Cobb intake and box, and an aftermarket loud-as-hell horn. This is all we could find without taking anything apart. I am now running stage 2.

  4. #18
    Moderator rage-wrx's Avatar
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    You have a loud aftermarket horn? I wonder which one

    So safely do another datalog & post the results.
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  5. #19
    Registered User maus's Avatar
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    OP, you need to get protuned. YOU CAN NOT use an aftermarket EBCS with a stage 2 map. You are going to have a bad time if you continue driving like that.
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    New Stage 2 Datalog
    https://docs.google.com/file/d/0Bypf...it?usp=sharing
    maus, is Stage 2 really unsafe with an aftermarket EBCS?

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    Subaru Newb MainFrame's Avatar
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    Surprisingly, your logs don't look bad, because a custom tune IS required to run aftermarket EBCS. Which EBCS is it?

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    I'm now wondering if there was a custom tune on it already and got rid of it when I got my accessport and flashed stage 1 because I was worried it was staock. My AP saved all that map data correct? Would it be worth checking or just bite the bullet and go get it protuned?

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    Quote Originally Posted by MainFrame View Post
    Surprisingly, your logs don't look bad, because a custom tune IS required to run aftermarket EBCS. Which EBCS is it?
    Unfortunately I cant find a brand on it.

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    Subaru Newb MainFrame's Avatar
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    Quote Originally Posted by Animegod View Post
    Unfortunately I cant find a brand on it.

    Pics?


    Your original map will be saved on the AP. Are you sure you have an aftermarket EBCS? I doubt you would be hitting your boost targets on the Cobb map. .unless it functions basically identical to stock.

  11. #25
    Pro Manscaper Mikie13's Avatar
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    Pics would really help out at this point. Snap some of the parts in question.

    It is very possible that it already had a tune on it. As Mainframe says, the Cobb AP will have saved whatever original map was on the car. So if you flash it back to "stock," run some logs with that and we'll compare. We'll be able to tell if it looks normal per those mods.
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    Getting it protuned on Thursday.

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    Registered User maus's Avatar
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    Quote Originally Posted by Animegod View Post
    Getting it protuned on Thursday.
    Good idea, I'm not a fan of the AP maps.
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    Quote Originally Posted by rage-wrx View Post
    You have a loud aftermarket horn? I wonder which one

    So safely do another datalog & post the results.
    The horn is a Hella Supertone Dual Tone horn kit.

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    Quote Originally Posted by MainFrame View Post
    Pics?


    Your original map will be saved on the AP. Are you sure you have an aftermarket EBCS? I doubt you would be hitting your boost targets on the Cobb map. .unless it functions basically identical to stock.
    It appears the brand is MAC. That's all it says on it.

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