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Tuning B6 S-line 190 Bhp

Discussion in 'A4/A4 cabriolet/S4 forum(B6 chassis)' started by powertuningltd, Sep 22, 2007.

  1. Elberoth
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    Elberoth Member

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    Uprated N75 valves give higher overboost. That's it. At higher RPMs, boost tappers down to normal.

    BTW - I have a N75K for sale, if you want one ;-) It's even more hardcore that the so called N75 "Race". N75-K comes from Audi RS2. N75-H ("race") comes from an older S4.
    #41
  2. james0808
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    james0808 Active Member

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    Are you still running a N75K on yours Elberoth?
    When you say more hardcore,what is different?
    #42
  3. Elberoth
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    Elberoth Member

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    No, I'm running stock N75. N75K is still in an unopened box.

    By hardcore, I mean that the overboost is higher. So if you spike with your stock N75 lets say 1 bar, with N75K you will spike 1,2bar or so. May be kind of cool, but my K04 Sportec software spikes up o 1,4 -1,5 bar by itself, so additional 0,2 bar would be too much.
    #43
  4. powertuningltd
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    powertuningltd couldnt fix your brakes,so I made your horn Louder

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    Part Numbers and ranges below:-

    Today the “F” version comes as serial in the 1.8T engine (includes BEX 190) ,F superceeded C.


    058-906-283-C 20-30 ohm
    058-906-283-F 25-35 ohm

    034-906-283-H 25-45 ohm
    034-906-283-J 20-40 ohm
    034-906-283-K 20-40 ohm

    As an alternative for the VAG part you can get ECS Race valve which is in fact a copy of Audi’s serial 034906283H part.

    J followed the H version and it functions (in 1.8T) a little weaker then “H” version.
    J version is more aggressive then standard one, but less aggressive then H version.
    It is also used for replacement when in some engines the car goes in the limp mode because of H version being to aggressive in the mid rpm.

    The H is more aggressive, it will get you more peak boost, but boost levels will fall down to stock sooner than with the J. The J valve holds the boost longer, but its levels aren't as high as the H.
    Those with high-boost chips should be wary of the H valve. I've heard stories of soft-limp due to overboosting with the H valve, whereas the J valve be MUCH less likely to cause this problem.

    I guess the a change in a N75 valve makes the remap manditory, otherwise your running the risk of a lean burn.
    However i noticed a few people putting these on after the remap??

    http://www.audi-sport.net/vb/showthread.php?t=36564

    http://www.audi-sport.net/vb/showthread.php?t=4578

    You can Buy the N75J here:-

    http://www.vagparts.com/
    #44
  5. Elberoth
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    Elberoth Member

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    In order of aggressivnes:

    C/F -> J -> H -> K (most aggressive)
    #45
  6. jase0851
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    jase0851 Member

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    which 1 does a 190 have on as standard then ?
    #46
  7. Elberoth
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    Elberoth Member

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    F
    #47
  8. jase0851
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    jase0851 Member

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    cheers elb
    #48
  9. jase0851
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    jase0851 Member

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    which version would be best for a standard car now but remaped in the near future then elb ? mines a 190
    #49
  10. Elberoth
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    Elberoth Member

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    You may try J and hope that you will not go into limp mode.
    #50
  11. jase0851
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    jase0851 Member

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    reeto ill get 1
    #51
  12. powertuningltd
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    powertuningltd couldnt fix your brakes,so I made your horn Louder

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    Does any one know the ECU code for the bex 190 sallon A4 B6 2004?

    Or do i need to take the lid of the ECU?

    cheers stephen.
    #52
  13. Elberoth
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    Elberoth Member

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    Ask at your dealership. They can tell by looking at VIN #.
    #53
  14. powertuningltd
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    powertuningltd couldnt fix your brakes,so I made your horn Louder

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    there are 3 BEX ECU codes, does anyone know what the last letter stands for?

    Audi A4 (8E2) Turbo 1,8 BEX 8E0909518AN
    Audi A4 (8E2) Turbo 1,8 BEX 8E0909518AH
    Audi A4 (8E2) Turbo 1,8 BEX 8E0909518AS

    cheers stephen.
    #54
  15. powertuningltd
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    powertuningltd couldnt fix your brakes,so I made your horn Louder

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    Rather than messing with a fixed piece of hardware (N75)
    Which give hit and miss results (dodging limp mode / surging).

    Is it not better to control the boost with a "Dawes Device"or (manual boost controller).

    You could use both together?

    Info Below:-

    Below you see 3 boost curves. First we start with just a hypothetical chip. The next two show two different ways of adding an MBC to the system and how they affect this chip's boost curve.

    The N75 Only shows a hypothetical boost curve with a chip and your standard N75 valve in place.

    The N75 & MBC in Parallel shows the MBC set at ~17psi, such that any boost above that will get bled off by the MBC, but the N75 will still control the boost curve below the MBC's set limit.
    - Here the MBC functions to remove spikes.
    - In this configuration, the MBC is only capable of reducing boost lower than what would occur without it.

    The MBC Only shows the MBC set at ~17psi, such that the MBC has complete control over the boost.
    - Here the MBC functions to control the boost.
    - In this configuration, the MBC has full control, and can either raise or lower boost, and thus caution is suggested when doing this. One should have knowledge of fueling limitations, turbo capabilities, etc.


    [​IMG]

    Here's Matt's drawing of the N75 & MBC in Parallel:

    [​IMG]

    PS - It should be noted that with the MBC in place (Only. Parallel too?), the initial ramp of boost may occur quicker as well.

    PPS - Having a MBC Only set-up, if you set the boost to a value greater than the turbo can physically achieve, the resulting curve will merely be the max boost (for the given RPM range) that the turbo can sustain. An example of this is that the S4's K03's can not sustain the 17psi at high RPMs as illustrated above. In this case, once the turbos can no longer sustain the 17psi, the boost curve would begin to taper and follow the maximum achievable boost.
    #55
  16. jase0851
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    jase0851 Member

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    i would never use a bleed valve on my car
    #56
  17. powertuningltd
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    powertuningltd couldnt fix your brakes,so I made your horn Louder

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    Hi jase,

    have you purchased you N75J valve yet, would be intrested in your results.

    cheers stephen.
    #57
  18. jase0851
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    jase0851 Member

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    ordered 1 mate just waiting for delivery ill keep ya posted
    #58
  19. powertuningltd
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    powertuningltd couldnt fix your brakes,so I made your horn Louder

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    Quote from another thread:-

    GIAC KO4 software is available for the B6 A4 1.8T.
    Here are some of my results.
    First. Here is my car from baseline to the FX set-up or the GIAC large injector set-up. If you get confused by all the graph lines just reference the lower right hand corner.

    All of these pulls were done on 93 Octane.
    [​IMG]
    Here are my results from my GIAC KO4 set-up. List of mods.
    1) GIAC KO4 software: (maps: stock, pump, race)
    2) GIAC 380cc injectors (same used in the FX file)
    3) KO4-15 turbo
    4) Thermal R&D exhaust
    5) Stock SMIC
    6) Stock Cat
    7) Stock airbox
    On 93 Octane
    [​IMG] a/f and boost:
    [​IMG]

    Questions:-

    This guy made 10 BHP with the stock CAT and replacing the cat back with thermal exhaust.

    I read enough posts know to realise the Miltek HFC does zero, in terms of preformance gains. click below.

    http://www.audizine.com/forum/showthread.php?t=112672

    But will the cat-back still give you some gains?

    Or is the problem that the Miltek has a resonated center section reduces gains, making the exhaust more of a style upgrade.

    cheers stephen.
    #59
  20. docurley
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    docurley Moderator Staff Member Moderator

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    I know this is an Old thread but has a new owner of a 04 190bhp B6 S-Line I was looking for answers it regards to tuning and this is a very good read should be a sticky if you ask me but then what do I know.

    Why am I interested in the K04-15 well I have a hybrid version (called Outlaw) modified by a Polish company called Scroll who take the K04 and basically and do the following.



    I have this turbo sitting on my old B5 1.8tq A4 waiting to be removed but while on there on a K03s remap it was one hell of a beast pulling all the way to red line and hitting 25.5psi which I turned down with my EBC to 17psi.

    I was looking to run this on the B6 but needed to find out what supporting mods the B6 would need as things are a little from the B5 NDBW to the B6 DBW engines.

    One of the guys over on the B5 section is running this turbo on stock parts bar a exhaust system and a remap and is making 243bhp so I would think with injectors FMIC and a 3" MAF he would see much bigger gains.

    One of the things I'm aware of is that the 190 S-Line has twin SMIC and need to know if this will cope with a K04-15

    What size is the MAF on the 190 S-Line?

    Will the TT injectors be a straight swap and if so can I swap them in pre mapping?

    I'm sure I will have more question which is rare for me as I tend to answer more than I ask. :)
    #60
  21. bubstar
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    bubstar Member

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    I think you've got the right idea with the hybrid K04.

    I've been told there's no point fitting a K04-015 over the K03 fitted to the 190ps engine. It's something I looked into a while back and didn't take further. I don't want a full on BT and a nice little K04 hybrid would be great. Oettinger claim 270ps with their K04 and it would be nice to see those numbers without loss of everyday driveability.

    I was told a K04-015 would give me 10 or so bhp. Not really worth the aggro' if you ask me.

    I'm getting 178bhp at the wheels with a 210lbft peak about 190lbft flat to 5200rpm. For the pub it's 235bhp and 271lbft.

    So as you can see the the 190 K03 can do the numbers. The car is great to drive and more economical than before. The next step would take it beyond just simple bolt ons and software and it's something I'd have to think about. I really want to keep this car as OEM+ as possible.

    I will say I like my Milltek cat back system though. It did help with midrange and smoothed out the bottom end too. It also looks great and makes a lovely mellow sound which is exactly what I wanted. If you hear it outside the car it has a pretty good roar though :yahoo:

    # I have a set of TT/S3 BAM injectors and they are a straight swap for the 190 (BEX) ones.

    # Like I said the twin side mounts will have no trouble with the K04-015.

    # I don't know what size the MAF is on the BEX.

    Cheers

    BUB :beerchug:
    #61
  22. docurley
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    docurley Moderator Staff Member Moderator

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    Cool,

    I have a set of Seamen's 380 injectors I bought for my B5 because the TT injectors would not fit the AJL engine which was a shame as my mate had a set of TT units I could have for free.

    The MAF I will look in to so buy the sound of things I just need exhaust and MAP.
    #62
  23. matt_lad
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    matt_lad New Member

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    Very old thread I know, but trying to do some research and couldn't find an answer to my question.

    I have a b6 s-line 190 avant with multi-tronic 'box. Is it ok to remap with this gearbox? I have heard some horror stories and don't really want to put any additional strain on the box bringing a premature death!!

    TIA.
    Matt
    #63
  24. docurley
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    docurley Moderator Staff Member Moderator

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    From what a know a remap will be fine.
    #64
  25. CMD
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    CMD Pointing Forward's!!!!!!!!!

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    From what i understand about the DSG gearbox (brov in law's) is that it also has to be tuned to match the remaped engine..
    #65
  26. Nutkin
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    Nutkin Member

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    tbf all this number chasing is a bit silly, you can make a fast car without huge bhps. Just get a decent tuner to map it. I would not recommend jabba as such for this.
    #66
  27. matt_lad
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    matt_lad New Member

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    So is the DSG box the same as the multi-tronic? I thought they were different??? Anybody re-mapped a multi-tronic boxed car?
    #67

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