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JB4 info and discussion thread

OliS3 Jan 27, 2017

  1. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    I thought I'd start a thread with JB4 info and so use owners can discuss settings and any issues were might have.

    Here is the info from burger taken from another thread..

    The unit ships with a base setting in map 1 that increases the boost by +4.0psi over stock that is safe to be used with 91US octane and 95 Ron and up. The typical power gains on this setting are 35whp and 40ft lb. Higher power levels are achievable using the various maps as seen lower down.


    Install instructions:
    Install instructions can be found here: http://www.burgertuning.com/instruct...B4_install.pdf


    JB1 to JB4 update instructions can be found here: http://www.burgertuning.com/instruct..._procedure.pdf
    The upgrade process is explained on this link: http://www.burgertuning.com/vw_audi_...grade_kit.html


    Connectivity:
    To connect to the unit to make changes or do logs you have two options:
    1. Laptop connection using our BMS Data Cable via free Windows and Mac software
    2. Via Bluetooth using our JB4 Connect kit that is IOS and Android compatible. On some Android devices users have has success connecting using our Data Cable. The App for the handset has a separate charge and can be found in the Google play store or App store as JB4 Connect.
    JB4 Connect kit link here: http://burgertuning.com/bluetooth_jb4_connect_kit.html


    [​IMG]


    User interface software:
    For users that have opted to purchase the optional BMS Data Cable you will need to download and install the Windows user interface at this link http://www.n54tech.com/flash_files/jb4_interface.zip
    There is a 3rd Party Developed Mac interface that can also be used, download link can be found here at bottom of post 1 http://www.n54tech.com/forums/showthread.php?t=21742
    Watch this video which has a walk through of the process and also the steps to change maps and tuning settings.


    Typical gains:

    The unit ships with a base setting in map 1 that increases the boost by +4.5psi over stock that is safe to be used with 91US octane and 95 Euro. The typical power gains on this setting are 35whp and 40ft lb. With higher octane accompanied with bolt ons and octane we have seen gains of 85whp and 70ft lb in Map 6. All of this whilst keeping the engines stock fail safes in place.

    For JB1 users that are upgrading on Map 1 the unit makes the same power with .3psi less boost.
    Map 2 is set more aggressively and 40whp and 55ft lb can be expected as a minimum.
    The largest gain is felt at high rpm. Torque can be increased though in map 6 to Stage 2 flash levels if users do not have a turbo longevity concern.

    Here some results from users out in the field. The test group was 48 vehicles across the globe with some users running the JB4 up to 6 months.

    Dyno figures are wheel dynojet type unless specified.

    JB1 vs JB4 comparison map 6: Mods JB4, DP and intake in Map 6.
    [​IMG]

    JB4 DP and Intake running our meth kit.

    [​IMG]

    JB4 DP and Intake with a race fuel mix. This car was set with a low torque map per customer request with high boost levels at the top rpm.

    [​IMG]

    JB4 with intake and some Eth on a stingy Mustang dyno

    [​IMG]

    JB4 on streets with dp only

    [​IMG]

    Map selection:
    In order to change the map in the picture below under the logging tab you can pick the required map. Under status the unit must show connected. This is done by clicking file and selecting connect.

    [​IMG]

    Upon shipping the following maps are active:


    Map 0: Stock with complete pass through i.e. the JB4 does nothing


    Map 1: Tuned map with a average of 4.0psi over stock. This is the shipped map and is compatible for both 91 and 93 and can be used with cars on hardware.

    Map 2: This map is a more aggressive map. Peak boost add is 5.6psi over stock and the map is good for cars running 98Ron and above.

    Map 4: This is a stock map but with JB4 logging ability. It is also the starter map for cars that are running flash tunes and are stacking the JB4. It will give the ability to log the car via the JB4. This is also the safety map, so in any circumstance the JB4 detects a unsafe condition regardless of map it will default to this map. This includes knock detection, lean AFR or the boost safety value being triggered due to lack of boost control.

    Map 6: User adjustable boost map. The map comes preset with a 5.0psi over stock peak and is ready to use on any car running 93 octane. The preset map is also suitable for manual cars with clutch longevity in mind.
    The mapping can be done in two manners. If the value at 1500 is kept below 10 it will work as a boost adder map. If the value at 1500 is higher than 10 it will work as a absolute map. This means actual total boost targets will need to be entered.


    Map 8: Map three allows the JB4 to be the methanol controller working as a fail safe cutting boost if lack of meth flow is detected. You will require a Coolingmist FSB to get this working.

    User Adjustment page:

    Below is a outline of settings that can be changed in the User adjustment page:

    Map 6 (blue outline): as explained above

    AFR Bias (orange outline): This value is to be set across the range at 100. It is the parameter which adjust the AFR ratio. Unless otherwise advised by us its should be left alone. For cars using the JB4 over a flash tune this value will start of at 0 across the rpm range and working on logs we will advise the end user on the settings.

    Boost safety (green outline): This value is a boost ceiling that user will set. It is recommended the value of this is 2psi over peak tuned map. i.e. if you hitting 24psi set this at 26psi. If for whatever reason the car overboost it will default straight to map 4 returning the car to the stock tune.

    Fuel Open Loop (purple outline): This value is what controls the rail pressure to keep fuel trims in check. It is used to avoid having the ECU compensate fuel for the unseen boost. The unit ships with a 40 value. Upon logging some users with hardware may need to raise this value. The ceiling on most cars is 60. For users that are stacking the JB4 over a flash tune this value will be set to 0 initially and via logs we will see if it needs to be raised to compensate for the small boost add.

    Max boost add (pink outline): These values represent the maximum boost allowed in each gear with the minimum value being the stock tunes value. If you are using boost add values in map 6 you will add the amount of add you want max. i.e. If your high rpm values are set at 5.5 and you do not want any boost in first you will set the value to .1. If you want only 2psi add over stock you will set it to 2. This is the methodology you will use if you running the JB4 over a flash tune as well. Future firmware updates will be able to remove boost even below the stock request.
    For users that are entering absolute values and say your peak is 24psi, you will enter the lowest you want allowed. Stock is around 17psi so you can do first for stock, 19 for second and so forth.

    [​IMG]

    Code and Fault reading: At first release the unit will only be able to read faults in Hex Code and clear them. The next firmware update will bring the translation of the code into the user interface as well as activate the autoclear feature for users with DP’s.
    For now use E Series N54 in the setting page:

    [​IMG]

    Logging:

    The JB4 now has full logging ability and all the parameters on the logging page are logged. The only three parameters to be added in the next firmware update is the oil temp, water temp and transmission temp.
    Ign 1 represent overall timing with Ign 2-5 timing adaption and the rest are self explanatory. IAT is the value in F x10.

    See post 2.




    FAQ:
    Can I run the JB4 with another device connected to the CANbus?
    No, any other device connected to the OBD port creates latency on the CANbus. The CANbus was designed to allow one device at a time and further data being pulled may create safety issues on the network as well as bad signal to the JB4
    Will BMS release cluster display and steering wheel map switching?
    At this stage cluster hijack has proven to be cost prohibitive due to the Gateway system used by VW. We are looking at getting cheaper solutions that may be affordable. Steering wheel map switching or in car map switching is something being worked on and will come in a future firmware update.
    What future features will the JB4 have?
    Currently we working on the code reading ability which will come as the first firmware update. Next in line is an Autotune map. Once we have gathered enough data we will be able to create a dynamic map that will self adjust on the fly maximizing performance regardless of conditions, mods and octane used.
    Why is the JB4 released as Beta?
    When we release units they stay in Beta for quite a while. Any updates done to the unit are firmware related so they get uploaded using the BMS Data Cable.
    The JB1 stayed in Beta for a year with only one update when we opened map 6 use.
    The JB4 will be ever evolving as we keep adding features to it relative to customer requests.
    Will the JB4 remove my speed limiter?
    At this point in time, no. The speed limiter affects many safety parameters and until we are certain there are no ill effects on this we will not have speed limiter removal available. The speed limit exceeded is also a trigger point logged in the ECU which may cause issues down the line for any form of claim.
    Can launch control be added for a manual car?
    No, at this stage this requires changes in the ECU structure which the JB4 does not access or tamper with. We have had success with this on other brands with add on hardware so its something we to intend down the line.
    Can the JB4 support larger turbos?
    At this stage on the 1.8T we can support the IS20 and on the GTI the IS38. On the R any larger frame turbo will require a flash of some sort.
    How do I know if I can stack the JB4 over my flash tune and what is the process?
    This varies on what the flash tune is requesting from the car and if there is room for improvement. If more hardware is used, higher octane or ethanol or meth has been added chances are there is a gain to be had. On stack tuned cars we work one on one with clients so we can understand the trend and get a better idea for the community where gains can be had.
    Do I need a professional to custom tune my car?
    BMS is renowned for its customer service and we can assist any customer with setting his car up to optimize performance. A large online community exists as well where users share their findings. The device works in such a way that it is easy for first time enthusiasts to get a taste of self tuning.
    Why does the JB4 read my Vin number and is it Vin locked?
    The Vin is read for certain mapping purposes. The unit is not locked to the car which would be unethical and can be resold.
    What does the JB4 do via the OBD port?
    The JB4 only uses this port for engine data optimizing the mapping. This works on the same principle as one would be logging the car using a VCDS tool. The connection is required for the JB4 to run affectively. Once the OBD plug is removed the JB4 will default to a 3psi over stock safety map.

    The JB4 has full logging capability of most of the parameters we need to optimize the tune.

    In order to log the steps are simple:

    JB4 must be connected to log. A normal USB extender cable will work to get the wire into the car. This must be connected though to our BMS Data Cable. 3rd and 4th gear logs are preferable and if you plan on send them to me at george@burgertuning.com for analysis please do not send 15minutes of driving.

    Go to Data Logging next to File at the top, press Start, do the log then press and display. Do your run then press Stop and Display when you are safely stopped. Then go Export and Export log and save the file to your pc. This file can be reopened for viewing by going Data Logging then open log.

    It is suggested once you get a baseline log to familiarize yourself with what you can click to see which value. The log is best to be viewed in the JB4 user interface.
    Below is a typical JB4 only log that I have chosen that is a good example to explain everything as a lot of interesting things are happening. The car was run over and over 0-150mph prior to this log, its full bolt on with our meth kit.

    [​IMG]

    I will start explaining each line starting from the top.

    Pedal: This redline that is pegged against the top show where your pedal position is. In some logging tools available by other tuners they use this as the throttle so people are accustomed to seeing it full.

    Throttle position (orange): The ECU uses throttle position to assist with torque targeting. It is the torque targeting that creates final boost hence us seeing boost level going up in summer months. This results in a floating throttle which is normal to a point. We do not want to see this value go down lower than 4000 which represents 40%. Sudden spike straight down are also a problem that that is usually accompanied with the overboost fault.

    Meth (dark green line going all over the place): For guys running our FSB meth system this line represents meth flow. It should be pegged at the top of the graph in a straight line if flow is sufficient. This car has a meth flow issue which is also evident in the IAT values further down.

    RPM (green line): It is interesting to keep a eye on the rpm signal. Good to see what wheel spin looks like or if you suspect clutch slip it will create curves instead of being straight.

    Trims (light blue): For scaling purposes this is a JB4 calculated value using the OEM trim values and taking into account what we doing to the AFR bias. What we want to do in terms of trims is avoid going higher than 40-45%. If the car reaches this point take a note at what your AFR ratio is doing if its taking a dive you are reaching a fueling ceiling. This will only happen if you use too high a amount of E85 on your mix or you are running too high a boost level. At certain point adding boost does not add power so lower the boost in this case. The fuel is sufficient to max the turbo power wise both for a R and a GTI. If the car is run like this for a sustained run the ECU will throw a lean code Sensor 1 Bank 1 and the JB4 will default to map 4.
    You JB4 should ship with a fuel open loop value of 40. The maximum you can go is 60. Increasing the value will lower trim levels by increasing rail pressure. Dropping the value will increase trims values.

    Boost (Blue line): This is actual boost

    Target (Pink line): This is the boost target requested in the map 6 column. In this case we targeting actual boost values. If you use Map 6 as a boost additive by adding the values you want over the ECU boost the line will be found at the bottom of the graph as shown on the Stacked log below.

    ECU PSI (Black): This is the boost value the ECU is requesting and seeing.

    AFR (Mustard): Here we have the AFR value. If you have opted not to run the AFR wire to the lambda make sure your Fuel Bias values next to map 6 chart are all set to 0. The JB4 uses a calculation of the Fuel Bias Values and ECU AFR to work out the true value of AFR. You may see spikes in this value on the gearchange which is a calculation delay bug on the JB4 firmware we sorting out so do not be alarmed with this.

    On this specific log it is interesting to note that in this log the AFR in 4th gear ranges from 13.2-12.7 which is a happy place for a Direct injection car. Switching to fifth we see the AFR drop to 11.3. It is rather rare for this to happen but I am glad we got it. The ECU has two mechanisms that are built into AFR functionality. One is a EGT (exhaust gas temperature) protection mechanism that dumps fuel when the EGT's get too high and the other is a full boost timer which is triggered if the car has sustained full throttle runs and it also dumps fuel. I think in this case the second one occurred.

    IAT (fine turquoise line)
    Overall Timing (thin redline) IGN1 on logging page
    Timing adaption (different colours but timing adaption event circled in orange) IGN 2, 3, 4, 5 represent cylinder 1, 2, 3, 4

    The IAT is in Fahrenheit and to get correct value multiply by 10. So if it show a value of 10 its 100F.
    On this log the IAT is sitting close to 100F across the rpm range. Ambients where around 100F as well and the meth not working well is not improving it.

    What we need to look at in the IAT is a relationship between overall timing and timing adaption. In general the lower the IAT the more timing the car will run. So if you see your timing is lower than usual compare the IAT's of the previous runs to see if its boost or IAT affecting it. As you increase boost you will see the timing chart start dropping as well. In the mid range it is normal for you not to see any timing but at high rpm it has to pick up. This car in the log has got relatively good timing going up to 10 degrees at peak rpm where boost is running at 20psi. If we raise the boost at peak to 22psi we might see a 5 degree drop of timing and we loose any power gains from the boost increase. Regardless in terms of targeting we do not suggest values higher than 18psi at peak rpm. Anything higher in our findings and the timing offset costs far more than the power gained in boost. From 16-18psi at redline we only seeing a average of 4-5whp so its up to the end user to decide how hard he want to push the turbo. We will obviously find good trends from users over time in this regard as well.
    On the log I have circled a timing adaption event in 5th gear. There is a lot of discussion about timing adaption on the Simos ECU and it is a general norm to allow up to -4 degrees. On our side we would prefer it to be kept to a minimum of -2 or less or none at all. The timing adaption can work as a function of torque targeting. In this case in orange it pulled -1.2 degrees in cylinder 1. Looking immediately at the previous gear we can see timing was not affected so this is not a issue. For safety purposes we have logged knock sensor values vs timing pull and in most cases there is no relationship.

    Gear: The gear will show you which gear you are in. Works for manual and DSG and Auto. It is nice to look back at it because sometimes its hard to remember what occurred when. Also lets us see on our side when logs are sent if we looking at possible wheel spin or a issue.

    Stacking the JB4 over a flash tune:

    All the above will apply. With the JB4 connected you will start with a clean slate and log the car in map 4 which is a pass though map with logging capability. This will give you a idea of the state of your tune and show you how it is set and what it is doing.

    On the user adjustment page you going to want to make the settings as below:

    [​IMG]

    You will notice the boost safety is set to 30psi. Once you know your final peak boost adjust this value to 2psi over the peak so you can still have the safety feature for boost over run.

    The same will apply in terms of what you are looking for in the logs. One variance is that the throttle position will stay mostly open due to the torque values in the tune being higher.

    Start adding boost in single digits after your peak boost for starters and see how the car is handling it and what the affects are of the added boost in timing.
    Keep a eye on the fuel trims and adjust accordingly in denomination of 5 in the fuel open loop setting
    You can have a look at AFR values but they rarely move with stock turbos.
    Look at the timing pull values vs overall timing. In some cases if timing pull is present you can start adding the fuel bias at those rpm in values of 5. This will en richen the AFR and in some cases the richer fueling can cool the cylinder enough to increase timing.

    Be sure to work with me if you going for large increases or you trying to achieve maximum boost values.

    Below is typical log. The car is a GTI APR Stage 2+ IS38 running our meth kit.
    In this case you will see the pink target line at the bottom which represents boost add. In this case it is set at 1.8psi over stock. Trims have also been brought down the a fuel open loop setting of 20. This actually also improved the AFR curve in the process.

    [​IMG]

    To control the boost per gear in the case of stacking you will need to add the maximum add you want to allow per gear.

    So if you want no added boost in 1st use .1 because 0 disables the feature.
     
    Rob2k68, BodegaBay and Salik Sajid like this.
  2. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    reserved..
     
  3. Salik Sajid

    Salik Sajid Active Member

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    Great info, which map are u running and how much boost u have set?

    Sent from my HTC 10
     
  4. larbel

    larbel Well-Known Member Team Sepang Audi S3 saloon

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    Seriously considering JB4, is the BT cable and app worth it? What can it do that BMS cable can't? And how hard is it to access the firewall on RHD vehicles?
     
  5. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    I'm currently running map 2 which is peak 5.6psi over stock with a boost limit of 24 psi. I have limited the boost in first gear to 4psi extra but haven't had change to try launch control on my drive to work
     
    Salik Sajid likes this.
  6. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Unless you want to be stuck on map 1 then you need the cable to change it, from my point of view £30 for the cable isn't bad for what you can do, you don't need the app which is £16.74 (got mine for free with google reward credits) you can just use a laptop, set to map 2 and you're done.

    I'd happily offer my lead for changing maps etc if you wanted to come to me, I work in Birmingham and live by the Merry hill centre if that helps.

    The firewall access is really easy, just something to feed it through, I used the copper earth from a bit of cable I had in a draw.
     
  7. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Just a few quick pictures to show the cable placement. It isn't perfect but if it helps anyone it has done its trick.

    [​IMG]

    [​IMG]
    Sent from my SM-G935F using Tapatalk
     
    Salik Sajid likes this.
  8. Salik Sajid

    Salik Sajid Active Member

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    I have to ask George if there's some other way for our rhd car to get the obd cable inside as this is way too close to turbo/downpipe and in summer it might melt the cable.

    Sent from my HTC 10
     
  9. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    I thought that as well but with the way the air flow goes it does cause any issues. I might cover it with heat insulation

    Sent from my SM-G935F using Tapatalk
     
  10. Salik Sajid

    Salik Sajid Active Member

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    OliS3 likes this.
  11. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Salik Sajid likes this.
  12. Salik Sajid

    Salik Sajid Active Member

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    I ll probably heat wrap the obd cable for now as removing all again might damage the cable clip.

    Sent from my HTC 10
     
  13. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    I need to run the data cable through tomorrow so I'll probably heat wrap them together then.

    On another note I've killed a tank of petrol in 180 miles! Need to remember the throttle isn't an on / off switch

    Sent from my SM-G935F using Tapatalk
     
  14. Salik Sajid

    Salik Sajid Active Member

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    I know a guy who did same thing, hes has kept data cable inside the dashboard and it look neat but if u goin to use both cable make sure u put the other rounded cable not the flat one of obd cable tht goin to be easier to heat wrap together.
    Change the map to map4 for fuel conserving

    Sent from my HTC 10
     
  15. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Haha I'll teach my right foot to behave! Yes I was planning on putting the extension cable through the firewall so the serial port have to fit through

    Sent from my SM-G935F using Tapatalk
     
  16. lenny151

    lenny151 Well-Known Member

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    I'm selling my jb4 if anyone is after one


    Sent from my iPhone using Tapatalk
     
  17. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    How come?

    Sent from my SM-G935F using Tapatalk
     
  18. lenny151

    lenny151 Well-Known Member

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    Nothing Bad just going for a proper map, as I have already mapped the gearbox so I might aswell do the engine


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  19. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Yeah I don't blame you. How much do you want for it? Is it rev 1 or 2?

    Sent from my SM-G935F using Tapatalk
     
  20. lenny151

    lenny151 Well-Known Member

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    Rev 1 with jb4 kit and original jb1 board too, am not to sure what's it's worth with the jb4 and the data cable open to offers really


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  21. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    I'm sure someone will take it off your hands. £429 for the full kit with newer box and it works with quite a few cars!

    2014 and up VW MK7 Golf 1.8T
    • 2014 and up VW MK7 Golf GTI 2.0T & Performance Pack
    • 2014 and up VW Golf R 2.0T
    • 2013 and up Audi A3 8V 1.8TFSI
    • 2013 and up Audi A3 8V 2.0TFSI
    • 2015 and up Audi S1 2.0TFSI
    • 2013 and up Audi S3 8V 2.0TFSI
    • 2015 and up Audi TT 8S
    • 2015 and up Seat Leon Cupra 2.0T
    • 2015 and up Skoda Octavia vRS
    • 2015 and up VW Polo 1.8t

    • VW Polo 6C GTI
    • Audi A3 8V 1.8T FSI Non-US
    • Skoda Octavia 1.8T FSI
    • Audi A1 1.8TFSI
    • Seat Leon SC FR 1.8TSI
    • Seat Ibiza Cupra 1.8TSI

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  22. lenny151

    lenny151 Well-Known Member

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    Sure someone will plus the Wait for the jb4 it's self


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  23. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Considering how much other mods cost the jb4 is a bargain. I'm sure it won't take long.

    Sent from my SM-G935F using Tapatalk
     
  24. Dalzo

    Dalzo Member

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    Has anyone had there's on a dyno?

    Got mine on map 2 with no other mods. Can really feel the difference but interesting to know the numbers
     
    RS3ER likes this.
  25. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    [​IMG]

    367hp with no major mods

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    Salik Sajid and MartS300 like this.
  26. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Has anyone else tried launch control with the JB4....

    I get that much wheel spin it changes to 2nd gear and then back to 1st and then back to 2nd, I keep dialling the boost down and it is still doing the same.
    Loving the extra torque but I miss launch control working like it did with the JB1
     
  27. Dalzo

    Dalzo Member

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    It shouldn't do that. Should just grip and go even with extra power, have you ever had your Halsey pump changed?
     
    phobos512 likes this.
  28. lenny151

    lenny151 Well-Known Member

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    Launch with mine on a jb4 map2


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  29. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    It spins all 4 tyres so I know the pump is fine

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  30. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Thanks but it doesn't seem to be working

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    phobos512 likes this.
  31. phobos512

    phobos512 Active Member TFSI Owners Group Team Vegas Yellow Audi S3 saloon DSG

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    Link's no good.


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  32. phobos512

    phobos512 Active Member TFSI Owners Group Team Vegas Yellow Audi S3 saloon DSG

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    How can you tell it spins all four if you're in the car?

    I've launched and it launches like a damn rocketship. It just goes. No drama.


    Sent from my iPhone using Tapatalk Pro
     
    -Ju- and OliS3 like this.
  33. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    There is a massive difference to the feeling of just the fronts and all 4 wheels spinning. I know the s3 doesn't give that much feedback but you'd know.

    I've dropped map 2 to +3 psi in first and in manual it worked OK this morning. As stock it used to work fine in the wet or dry, with a jb1 it was always OK in the dry and sometimes in the wet it did it and now until today it's done it everytime.



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  34. phobos512

    phobos512 Active Member TFSI Owners Group Team Vegas Yellow Audi S3 saloon DSG

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    I've never had the traction control light even come on either in my former R with a JB1 on 93 or 91 (moved from MD last summer) or my S3 with the JB4 on Map 2 on 91 (I've logged it a bunch, it runs perfectly fine on Map 2 in these temps).


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  35. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    You can't use launch control with the traction control on full and with it in sport or off the traction light just stays on all the time? Unless yours is different?
     
  36. phobos512

    phobos512 Active Member TFSI Owners Group Team Vegas Yellow Audi S3 saloon DSG

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    No, mine is not different. I was simply indicating that my car doesn't break traction at all. Obviously for launch control I'm full off. But when I lift off the brake it just goes. No drama whatsoever as I stated. No chirp, no tire slip sounds or feel.

    But my car is only a month and a half on the road with tires that are freshly broken in so I would expect that.


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  37. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    Ok that makes sense :) Weird how your car just grips though, I've had 3 S3s and yes they grip very well but never seeing the traction light flicker is strange. Like you said new car, new tyres, we have cold wet weather over here at the moment (well we do most of the time)

    Mine in stock form would just take off with no noise from the tyres and with the JB1+5 psi I used to get a nice chirp from the tyres. With the JB4 and traction control off in this weather it spins the top end of first up and in 2nd you can feel it is just about holding grip and it settled down in 3rd. I've tried launches in map 4 and it launches like stock so I highly doubt it is anything up with the car.
     
  38. phobos512

    phobos512 Active Member TFSI Owners Group Team Vegas Yellow Audi S3 saloon DSG

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    I've only done a couple of launches and they were all mid 50s F and dry. That could play a role as well. I would never attempt a launch in the wet; do not my car wrapped around a light pole.


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    Last edited: Feb 2, 2017
  39. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    I've done plenty in the wet, don't worry you still go fairly straight

    Had a BMW M3 winding his window down at the next set of lights asking how on earth I managed to leave him sat at the lights :)
     
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  40. OliS3

    OliS3 Well-Known Member Team Sepang Audi S3 DSG

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    This is on a wet road at +3psi in first gear. Definitely getting better

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