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Thread: Dyno results 03 RS6 C5 GIAC chip tune 91 octane

  1. #19
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    Marc,

    We really need to talk. I was writing my response as you piped me for my shock and awe post.

    Hahah

    I could try your stuff but we should talk first.

    That guy from GIAC is an idiot. GIAC just went in the trash can for me.

  2. #20
    Registered User 10SecS4's Avatar
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    I knew you'd jump all over that one too, so I tried to make my post short and to the point.

    Quote Originally Posted by DHall1 View Post
    In a prior life....I tuned ECU's.

    What this guy just said is a crock of shit. Sorry to be blunt.

    Once you go WOT in all the other ECUs I have worked with.....the ECU moves into "open loop". For those that know...that means the 02 sensors have nothing to do with the A/F ratios at that point.

    Now, for tuning sake. You do need wide band 02 sensor readings to taylor your fuel curve and rewrite the fuel tables. But the stock 02 sensors are doing nothing in open loop.

    Sorry, but unless I am missing something this guy is an idiot.

    That said, I would like to see the readings of the stock 02 sensors at the RPM levels and test he recommended. It will show a snapshot of what is happening. Not exact but close.

    Edit: Marc...you beat me to the punch. Damn it! LOL, I take too long to write my responses.

  3. #21
    Registered User 10SecS4's Avatar
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    Dave,

    No problemo. I just PM'd you my phone number. Gimme a ring during the day tomorrow.

    Marc

    Quote Originally Posted by DHall1 View Post
    Marc,

    We really need to talk. I was writing my response as you piped me for my shock and awe post.

    Hahah

    I could try your stuff but we should talk first.

    That guy from GIAC is an idiot. GIAC just went in the trash can for me.

  4. #22
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    Arrrrrgh!

    LOL

    Thats the best laugh I have had this week.

    Look! That guy from GIAC thinks the stock 02 sensor can rewrite fuel tables at WOT. He is a bloomin idiot.

    Quote Originally Posted by 10SecS4 View Post
    I knew you'd jump all over that one too, so I tried to make my post short and to the point.

  5. #23
    Registered User Audi-RS6's Avatar
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    Here is the log:

    Log Data
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  6. #24
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    The car is too lean for a forced induction boost application.

    IMHO

    Also, these readings are not coming from true wide band O2 sensors. That said, they should be close. Also, there is no set number to cross over to a true A/F ratio.

    I would like to see this log block performed on a stock RS6. Can anyone do that?

    IMHO .800v ~ 13.2:1 A/F ratio. Too lean.

    Lastly, if you look over the logs....towards redline you see voltage more in the range of .88 or .89v. There its getting alittle more fuel and closer to where you need to be. Thats one of the reasons your dyno graph jumped up at the very end and you made more power.

    I would like to see the data blocks of this tune on the screen. Without pointing fingers...its a crappy fuel tune and could blow the motor. If this is the best GIAC has to offer. Its junk.

    Quote Originally Posted by Audi-RS6 View Post
    Here is the log:

    Log Data
    Last edited by DHall1; June 30th, 2009 at 22:54.

  7. #25
    Registered User Audi-RS6's Avatar
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    I finally got my Vag Com soft, Im not really pro in it, but maybe I should take some other readings, can you guide?

    Quote Originally Posted by DHall1 View Post
    The car is too lean for a forced induction boost application.

    IMHO

    Also, these readings are not coming from true wide band O2 sensors. That said, they should be close. Also, there is no set number to cross over to a true A/F ratio.

    I would like to see this log block performed on a stock RS6. Can anyone do that?

    IMHO .800v ~ 13.2:1 A/F ratio. Too lean.

    Lastly, if you look over the logs....towards redline you see voltage more in the range of .88 or .89v. There its getting alittle more fuel and closer to where you need to be. Thats one of the reasons your dyno graph jumped up at the very end and you made more power.

    I would like to see the data blocks of this tune on the screen. Without pointing fingers...its a crappy fuel tune and could blow the motor. If this is the best GIAC has to offer. Its junk.
    www.WheelsGallery.com

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    Free image gallery, sell or trade your wheels online.

  8. #26
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    What you have done so far is excellent.

    I cannot PM you so....

    Send me your contact info

    dhall1 @ vzw.blackberry.net

    I can chat here in about 40min.



    Quote Originally Posted by Audi-RS6 View Post
    I finally got my Vag Com soft, Im not really pro in it, but maybe I should take some other readings, can you guide?

  9. #27
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    The ECU is pulling timing, something is wrong!

  10. #28
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    Yeah,

    That little guy with the ball peen hammer is inside the cylinders hammering away.

    ECU pulls timing.

    The GIAC tune is garbage. Its running so lean your getting detonation and the ECU is pulling timing like crazy.

    I talked to WG today. I think he is returning the reflash.



    Quote Originally Posted by BCY4.2 View Post
    The ECU is pulling timing, something is wrong!

  11. #29
    Registered User Audi-RS6's Avatar
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    Stock 03 RS6 VAG Log

    Log
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  12. #30
    Registered User mi021le's Avatar
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    i dynoed once and the guy didnt turn off the ac. so it couldnt crest 400. then we turned it iff and with heat soak it ran 434. heat so kills these cars.
    03 rs6 dahlback 461 awd hp 530 tq. 12.2 118 gone
    01 rs4
    Rs6 avant loba 6sp

  13. #31
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    You have unmatched power numbers on your RS6, how can you run 460awp and be 12.2 on 1/4, i would say 390 top

    Quote Originally Posted by mi021le View Post
    i dynoed once and the guy didnt turn off the ac. so it couldnt crest 400. then we turned it iff and with heat soak it ran 434. heat so kills these cars.
    www.WheelsGallery.com

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    Free image gallery, sell or trade your wheels online.

  14. #32
    Registered User mi021le's Avatar
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    cuz i dont ever track. so im not that good at it. just no real intrest in it. i just wanted a base line idea. not my cup of tea.
    03 rs6 dahlback 461 awd hp 530 tq. 12.2 118 gone
    01 rs4
    Rs6 avant loba 6sp

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