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  1. #1
    A3 SportBack 2TFSI quattro DSG

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    Gear change "Burp" on tfsi w/ S-tronic/DSG

    Hi all.
    I am some how fascinated by the gear change burp
    coming from tfsi cars with the DSG box.
    Whats making this and can/will this be enhanced after a remap?

    Will a new exhaust do anything with this?

    Have seen the new S3 and A-class AMG on YouTube and its just pure audio porn.

    I am planing to opgrade the turbo to a K04 and the kit is without turbo nous suppressor!
    Anyone know something about this?
    Thanks for any feedback.

    Thanks
    Best regards

    J$B
    Norway

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  3. #2
    PaulAr's Avatar
    S3 (8P)

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    Milltek TBE resonated slightly enhanced the gear change `parp` on my S3 DSG.

    cheers
    Now:
    -MK2 Golf Gti 16V/VR6, Oak Green, Shrick, Intake, Decat, Kish Retrim, Lenso BSX..
    -BMW 335d Xdrive, Estoril Blue, fully loaded.

    Before:
    S3 (8P), Ibis, DSG, Milltek, SHARK

    BMW 320d M Sport
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  4. #3
    Johnny Bravo's Avatar
    6+1 Gears

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    DSG | Vienna Leather | Bose Sound | MFSW | Interior Lights Pack | Light & Rain Sensors | Auto Dimming Mirror Mods: LED RNS-e | FL LED Tail Lights | Bi-Xenons | Illuminated Speaker Grilles | Tinted windows | Chrome Switches | Chrome Paddles&Commands | RS4 Start Button | Cruise Control | S3 Pedals | S3 Roof Spoiler | 18" BBS CH | H&R Spacers 10/15 mm | Bilstein B16 PSS10 | H&R 26/24 ARBs | TT Arms | S3 Front Brakes+DS2500+Tarox F2000 | HEL Brake Lines | VNT20 | EGR&Cooler Delete | Custom Remap

  5. #4
    Rick @ Unicorn Motor Dev.'s Avatar
    4th Gear

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    DSG cuts the ignition momentarily during a gear change. It is very very slight. The DSG/Stronic is arguably the best box in the world, and changes gear in less than 7ms. The only way the engine power can be cut for such a short duration is with an ignition cut/retard.

    If you leave it a touch longer, this is what you get:

    https://www.youtube.com/watch?featur...&v=8IddRNFb22o
    Unicorn Motor Developments. Bespoke Calibration and Remapping Services
    www.unicornmotordevelopments.com

  6. #5
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    Quote Originally Posted by Rick @ Unicorn Motor Dev. View Post
    DSG cuts the ignition momentarily during a gear change. It is very very slight. The DSG/Stronic is arguably the best box in the world, and changes gear in less than 7ms. The only way the engine power can be cut for such a short duration is with an ignition cut/retard.

    If you leave it a touch longer, this is what you get:

    https://www.youtube.com/watch?featur...&v=8IddRNFb22o
    What do the cops do if they see that?

  7. #6
    mjr901's Avatar
    S3 Pollution Plus+ Edition

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    Quote Originally Posted by Rick @ Unicorn Motor Dev. View Post
    DSG cuts the ignition momentarily during a gear change. It is very very slight. The DSG/Stronic is arguably the best box in the world, and changes gear in less than 7ms. The only way the engine power can be cut for such a short duration is with an ignition cut/retard.

    If you leave it a touch longer, this is what you get:

    https://www.youtube.com/watch?featur...&v=8IddRNFb22o
    Think that's something i definitely want, but not as often as that. just occasionally.
    2012 Ibis Black Edition S-tronic S3, 3 Door, Shark Stage 2, MTC Intake Kit, Powerflex Fast Road Dogbone Mount, Full Non Res Milltek Exhaust, Forge Development Intercooler + DV system,
    340bhp Mikes Ibis BE 2012 S3...

  8. #7
    A3 SportBack 2TFSI quattro DSG

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    Hi all.
    Thanks for replying.
    I do like the flames. But I think for a trackday map and not for streets as the cops will hunt you down.

    @Rick: how is you sw at normal driving. Does is stil shooting flames?
    If I understand you correctly. The burp is from engine ignition cutoff/retard. Is this basically a stock flat shift system on the DSG cars?
    You say it can be extended in time, dose the longer cutoff decreas the performance or is it nOt notable?

    Thanks for the info
    Last edited by A3SBQ; 14th April 2013 at 10:20.
    Best regards

    J$B
    Norway

  9. #8
    5th Gear

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    if you think those flames are bad try driving something with launch control, anti lag, flat shift, traction control (all doing igntion cut) and plenty of fuel on overrun lol
    VCDS in North Wales
    2007 A6 3.0TDi S-Line Le Mans Avant , adaptive xenon lights, sunroof, privacy glass, towbar, led rears & randomly rear seat airbags
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  10. #9
    JS3
    1st Gear

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    Quote Originally Posted by PaulAr View Post
    Milltek TBE resonated slightly enhanced the gear change `parp` on my S3 DSG.

    cheers
    Paul - any chance you have a video of the parp with the Milltek? Also when the Milltek is installed, where does the small butterfly valve go that is at the rear of the OEM exhaust? Thanks.
    2010 S3, Sprint Blue, S-Tronic, RNSE, Cruise Control, Interior Light Pack, Upgraded LED Interior Bulbs, Heated Seats, Hill Hold, Boot Buddy, Fog Turn Lights, Revo Stage 1, De-Wipered

  11. #10
    Rick @ Unicorn Motor Dev.'s Avatar
    4th Gear

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    I'm working on a flatshift implementation for DSG, but it's on hold due to other projects. In reality, you're not going to improve on the standard system for daily use. I will probably end up doing a switchable map that is more aggressive than standard. As standard the boost request is dropped during gear change but it's only slight.

    Rick
    Unicorn Motor Developments. Bespoke Calibration and Remapping Services
    www.unicornmotordevelopments.com

  12. #11
    RedDejavu's Avatar
    5th Gear

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    I found Milltek TBE resonated to have less burb then stock exhaust as it removes the back box flap that enhances gearshifts burb.
    Be patient. English is tough.

    Now:

    61 Audi S3 BE S-Tronic Ibis White: Build Thread.
    / Black Edition pack (SatNav, Bluetooth) / Parking Sensors / Tinted windows / piano inlays and finish / Cruise Control / Interior light pack /
    /Mods: REVO Stage 2+: Revo Intake / BCS Powervalve TBE system / LOBA HPFP / Crystal Clear H11 FOGS / Black roof + spoiler vinyl wrap / H&R Anti-roll bars / Superpro ALK /


  13. #12
    Neutral

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    I recently added an evoms induction kit to my a3 quattro s tronic and now it farts when changing gear. It is fairly subtle at the moment but i have just ordered a milltek cat back to go on in a couple of weeks, hopefully it will get even better

 

 

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