2012 WRX Cobb Stage 1 Dyno Run Question
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This is a discussion on 2012 WRX Cobb Stage 1 Dyno Run Question within the Tuning: Electronic Engine Management forums, part of the Tech & Modifying & General Repairs category; I did a stage 1 (cobb AP) on my '12 WRX and have done a few AP "dyno runs" to ...

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    2012 WRX Cobb Stage 1 Dyno Run Question

    I did a stage 1 (cobb AP) on my '12 WRX and have done a few AP "dyno runs" to see what the hp and tq are hitting. I got a result of "nan" for a few intervals, right after hitting peak hp of 329. Does anyone know what that means and why it appears on the report? Does that 329 hp seem legit or suspicious. The last dyno report I did peaked at 294 hp but at a slightly lower max rpm. See attached and thanks for your input.

    dyno_run 012213.pdf

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    Master Baiter EJ257's Avatar
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    Cobb AP dyno runs are not trustworthy. Pull a log of only the following:
    Boost
    RPM
    Throttle position

    I'll get you a better indication...
    2005 WRX STi (Mods | Virtual Dyno)

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    Registered User Heide264's Avatar
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    Re: 2012 WRX Cobb Stage 1 Dyno Run Question

    Do it on level ground as well ;-)
    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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    Quote Originally Posted by EJ257 View Post
    Cobb AP dyno runs are not trustworthy. Pull a log of only the following:
    Boost
    RPM
    Throttle position

    I'll get you a better indication...

    Here are a couple I pulled in the past week. It was the standard data log and I just deleted the unnecessary data. Thanks for your help. (3rd gear btw...)

    datalog1 012013.pdf datalog2 012013.pdf

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by dfeeney
    Here are a couple I pulled in the past week. It was the standard data log and I just deleted the unnecessary data. Thanks for your help. (3rd gear btw...)

    datalog1 012013.pdf datalog2 012013.pdf
    Sorry. Get me a CSV file of RPM, Boost, and Throttle logged; I need the time stamp in the log, as well. The limit to those parameters is to keep resolution high...
    2005 WRX STi (Mods | Virtual Dyno)

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    ok, will do. By the way, a few days after the stage 1 my stereo bluetooth went to sh*t, all whacked out and not working. Do you think there is any connection to messing with the ECU? Thanks!

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    Registered User SubiEj255's Avatar
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    Quote Originally Posted by dfeeney View Post
    By the way, a few days after the stage 1 my stereo bluetooth went to sh*t, all whacked out and not working. Do you think there is any connection to messing with the ECU? Thanks!
    Most likely not. The reflash of the map simply "reflashed" a new map/tune on the car. The engine control unit (ECU) is the brain, but I don't think the control the radio in these cars. I could be wrong though.

    Try resetting it by disconnecting the battery and see if this helps.
    A car is only as good as its driver

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    Registered User MainFrame's Avatar
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    Quote Originally Posted by dfeeney View Post
    ok, will do. By the way, a few days after the stage 1 my stereo bluetooth went to sh*t, all whacked out and not working. Do you think there is any connection to messing with the ECU? Thanks!


    The two are unrelated.

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    and the Funky Bunch Calvinball's Avatar
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    Quote Originally Posted by SubiEj255 View Post
    Most likely not. The reflash of the map simply "reflashed" a new map/tune on the car. The engine control unit (ECU) is the brain, but I don't think the control the radio in these cars. I could be wrong though.

    Try resetting it by disconnecting the battery and see if this helps.
    Correct, there is a seperate "ecu" that controls the accessories, which is called the BIU (body integrated unit). Don't ask me how I know.
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    Hell on Wheels Rodman's Avatar
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    ^ How do you know that? :P
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    and the Funky Bunch Calvinball's Avatar
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    Quote Originally Posted by Rodman View Post
    ^ How do you know that? :P
    Don't want to potentially hijack the thread, look at my profile at my started threads
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    Data Log as requested

    Quote Originally Posted by EJ257 View Post
    Sorry. Get me a CSV file of RPM, Boost, and Throttle logged; I need the time stamp in the log, as well. The limit to those parameters is to keep resolution high...
    Here is the data log you asked for, thanks again for your help. I was not able to attach a .csv file to this post, here is the link to the google doc. Let me know if you have trouble opening it.

    https://docs.google.com/file/d/0Bzex...RiMXF6LVE/edit

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    Quote Originally Posted by Calvinball View Post
    Correct, there is a seperate "ecu" that controls the accessories, which is called the BIU (body integrated unit). Don't ask me how I know.
    So, do you think resetting the radio by disconnecting the battery may work? Other suggestions? I may consider getting a better stereo installed...

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    Master Baiter EJ257's Avatar
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    Quote Originally Posted by dfeeney
    Here is the data log you asked for, thanks again for your help. I was not able to attach a .csv file to this post, here is the link to the google doc. Let me know if you have trouble opening it.

    https://docs.google.com/file/d/0Bzex...RiMXF6LVE/edit
    For some reason, it's not taking your log well. That said, on a S1 OTS map, I would expect ~250whp/270wtq (assuming there isn't a ridiculous CF applied to the dyno).
    2005 WRX STi (Mods | Virtual Dyno)

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    and the Funky Bunch Calvinball's Avatar
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    Quote Originally Posted by dfeeney View Post
    So, do you think resetting the radio by disconnecting the battery may work? Other suggestions? I may consider getting a better stereo installed...
    Well, that's always a good option with these cars, the factory head units aren't exactly stellar...you'll get better sound too.

    Otherwise I would try deleting the phone and re-pairing it. Just remember when you pair it again to use the steering wheel controls to do so.
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