JB4 for Gen3 VAG Group

[George @ BMS]

Use subject to terms and conditions posted at http://www.burgertuning.com/terms.html

THIS PART IS LEGAL FOR USE ONLY IN COMPETITION RACING VEHICLES AS DEFINED UNDER CALIFORNIA LAW, AND IS NOT LEGAL FOR USE IN ANY OTHER MOTOR VEHICLE. California law defines a "racing vehicle" as "a competition vehicle not used on public highways." (Calif. Health & Safety Code 39048) This part may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event. Competition-only motor vehicles may not be driven to a racing event on a public highway and must be transported on a trailer or other carrier. USE OF THIS PART IN ANY OTHER VEHICLE MAY SUBJECT YOU TO FINES AND PENALTIES FOR VIOLATION OF FEDERAL AND/OR STATE LAW, WILL VOID YOUR WARRANTY FROM BURGER MOTORSPORTS, INC, AND CAN VOID YOUR VEHICLE'S WARRANTY. It is your responsibility to comply with all applicable federal and state laws relating to use of this part, and Burger Motorsports, Inc hereby disclaims any liability resulting from the failure to use this part in compliance with all applicable federal and state laws.

We would like to introduce users to our latest offering.

The unit is called a JB4 which is the name of our most advanced circuit board with CANbus connection (vehicle data network). It has been tried and tested over many BMW models and it is time for the evolution to start for the VW market.



Upgrade units for JB1 users are available to at this link, both revision 1 and 2 units can be upgraded: https://burgertuning.com/collections...ta-upgrade-kit


The JB4 is a true plug and play tune offering safe and adjustable gains.

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 Euro.



Install instructions:
Install instructions can be found here: https://jb4tuned.com/instructions/VW_JB4_install.pdf

JB1 to JB4 update instructions can be found here: https://www.jb4tuned.com/instruction..._procedure.pdf
The JB1 to JB4 upgrade kit can be bought here: https://burgertuning.com/collections...ta-upgrade-kit



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. (conventional serial cables will not work and possibly damage the board).

2. Via Bluetooth using our JB4 Connect kit that is IOS and Android compatible. The Bluetooth device replaces the need for our BMS Data Cable. 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.
The App can also be used for a gauge displaying showing true values, has shift light capability and acceleration times are being worked on.

JB4 connect link here: https://burgertuning.com/products/jb...585cda43&_ss=r



JB4 Mobile Smart Phone wireless connection directions Click here

BMS data cable hard wired directions and software Click here


Tutorial of how to install User interface software, connect to unit and make changes.

Video of user interface install and connection: https://www.youtube.com/watch?v=MjQjMWBVve4



Base settings

If you need to restore your unit with the settings the JB4 shipped with use the below values.




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.



Upon shipping the following maps are active:

Maps are based on 60/85//5 and newer firmware.


Map 0: This is a stock map with JB4 logging ability. It is also the starter map for cars that are running flash tunes and are stacking the JB4.
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: Tuned map with 5.0psi peak boost over stock. 93AKI/98Ron recommended
Map 3 Peak boost 6psi 93AKI/98Ron recommended
Map 4 Peak boost 6psi (Golf R and Audi S3 7speed DSG specific), it has a taper at higher rpm so will also work well for all on 93 in hot climates
Map 5 Absolute map peaking 25 tapers to 20psi. E30 with bolt ons needed. (not to be used on 1.8T or 2.0T MK6 Jetta/Passat)
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 7: Meth integration map using our FSB Meth controller
Map 8: This is a valet map/safety map where 50% of the boost is cut. 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.

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 (red 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 over boosts 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 1st, 2nd or 3rd (pink outline): The value added here is the amount of psi the JB4 will cut in the respective gear. With the 60/85//5 and newer firmware it is also possible to go below stock or for flashed guys stacking below the flash request. If you feel hesitations in the specific gear with large max boost numbers it means the value is too high and must be dialed back.

Autoshift boost redux: This parameter allows the JB4 to cut boost momentarily between gear changes. If you see in your log throttle closures post shift or over boost start with a value of 60 and increase in 10's and see if the issue persists. If not its related to too high a boost at rpm of the gear landing point.



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 **’s.
For now use E Series N54 in the setting page:



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.

More on logging in post 2

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.

Below a illustration of what a log will look like with a lot of parameters selected on display.



FIRMWARE UPDATES

The JB4 firmware for data cable can be found at this link https://dev.jb4connectkit.com/v1/firmwarelist.html , go to 60 - VAG Gen3 and load stable. Latest version will read 60/88/5. To upload it connect to your JB4 unit (Key on but engine not idling). Go to File then Upload firmware and select the saved file from your laptop. If the upload fails try again without disconnected.

For phone app via bluetooth make sure you not connected to any other bluetooth device including the media inside the car, smart watches etc. Key on but engine not running. Connect to JB4 with app, Go to settings then firmware update. At the bottom you can browse files. Navigate to 60 - VAG Gen 3 and select the file.

FAULT CODE TRANSLATION

Fault code translations can be found at this link. If a fault is not on the list email a screen shot through to [email protected]

https://drive.google.com/file/d/1C7J...gY87uXXsjm1kvc



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 if I want more power than the preset maps?
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.


Why is the JB4 cheaper than other options yet more advanced?
The circuit board used in the VW product has been used over many other brands and developed over a period of time so the development cost is spread over many models.


For any questions feel free to post here or email me [email protected] for a faster response.

How to update firmware:

For firmware updates we suggest you turn off WiFi, change upload timeout to 25, and set your phone next to JB4 box under the hood.


Download firmware using the new JB4 Mobile firmware database or externally by clicking this link.

[George @ BMS]

Logging and some stacking information.

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 [email protected] for analysis please do not send 15minutes of driving.

Go to Data Logging next to File at the top, press Start. 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.



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. On the ECU reading a value of 25% is no trim. So higher than that means its adding fuel and lower its cutting fuel.
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 0 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:



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.



To control the boost per gear in the case of stacking the value you add is the psi it will cut in the specific gear. Boost cut 1st, 2nd and 3rd are used for these. If the value is too high the ECU might trigger a overboost code.


Feel free to ask any questions or email me logs to [email protected]

[Terry @ BMS]

Looks good!

[MK7GTI]

Reserved for firmware

Do you have any plans for the release? What are the changes?

[George @ BMS]

Do you have any plans for the release? What are the changes?

It will be up shortly. This one changes part throttle fueling logic allowing for smoother power delivery when not under full load.

[RafaMonteiroo]

It will be up shortly. This one changes part throttle fueling logic allowing for smoother power delivery when not under full load.

Hi,

@George @Terry

The problem of Overboost in shift gear in the DSG has not been solved in this last FW?

I have some suggestions to make, if possible, in the next updates:

- Correction of Overboost on gearshifts in DSGs (I know this is already solved for next FW.),
- DME codes to DTC with descriptions,
- Possibility to limit the boost to ECU Stock map,
- Cold Start Protection - limits boost at 50% Oil temperature below 50 ° C, at 51-65 ° C limits at 75% and above 65 ° C releases full boost,
- RPM Limiter to create a Vallet or Anti-Theft map.

I think it will be very interesting,

Thank you,

[Terry @ BMS]

Hi,

@George @Terry

The problem of Overboost in shift gear in the DSG has not been solved in this last FW?

On post shift boost control we're working on evaluating that now, but it's not part of the v4 firmware posted.

For the warm up safety it's currently configured to water temperature and set to lock stock low until 160F and to also taper boost if water temp manages to exceed 250F.

[PorkchopExpress]

On post shift boost control we're working on evaluating that now, but it's not part of the v4 firmware posted.

For the warm up safety it's currently configured to water temperature and set to lock stock low until 160F and to also taper boost if water temp manages to exceed 250F.

Any updates on in dash map switching, gauge high jacking? Also curious if your looking into VW port injection controller, or the ability to run a 4 bar map sensor?

[George @ BMS]

Any updates on in dash map switching, gauge high jacking? Also curious if your looking into VW port injection controller, or the ability to run a 4 bar map sensor?

The gauge high jacking requires a separate board which is cost prohibitive when comparing to the Bluetooth module.
Port injection yes and 4 bar yes.

[RafaMonteiroo]

On post shift boost control we're working on evaluating that now, but it's not part of the v4 firmware posted.

For the warm up safety it's currently configured to water temperature and set to lock stock low until 160F and to also taper boost if water temp manages to exceed 250F.

Nice,

We are waiting for the correction of overboost, in Brazil it occurs quite due to altitude.

Cool, I did not know that water temp protection, it's something.

On other suggestions, if possible to include in a list to study the possibilities of the functions, would be nice, especially the DTC codes.

Another thing, it is not possible to manipulate the IAT so that we can fool the ECU, thus getting more advance ignition timing? Well, with Podium gasoline (102ron) here in Brazil, you have to work on it ...

Thank you.

[Terry @ BMS]

We do have that feature on other JB4 models, but we've not configured it for the VW at least not yet. If there is demand we can look in to it though.

[RafaMonteiroo]

Very interesting!

[MK7GTI]

This function of the IAT change the timing is present in the B58 models of the BMW line.

The ECU of the VAG cars is quite intelligent in relation to octane and IAT to evaluate the timing, but a tuning for this is interesting.You can count on me for testing.

[RafaMonteiroo]

Hello friends,

What is this new FW 5A_1.hex?

Any improvement or overboost fix in DSG?

[George @ BMS]

Hello friends,

What is this new FW 5A_1.hex?

Any improvement or overboost fix in DSG?

We testing it. Not sure if Terry sneaked it in on that one.

[Istvan]

Hi guys, how do I know what firmware I'm running? I ordered my JB4 11:th november

[George @ BMS]

Hi guys, how do I know what firmware I'm running? I ordered my JB4 11:th november

Connect to the unit and it will show the firmware version. If its not 60/4//5 then you need to update.

[Istvan]

Connect to the unit and it will show the firmware version. If its not 60/4//5 then you need to update.

Thanks George! I will have a look, but there’s 2 files on the last update, should I update to both or which one is it? Looking forward on your comments / map suggestion on my logs I sent you.

And by the way, does the 0-60 timing work? I haven’t tested and I haven’t launched or anything, but going in I see I have a best time of 5.9s, which probably was from yesterday when I pulled out from a redlight and then floored it in 2nd gear

[Terry @ BMS]

Hello friends,

What is this new FW 5A_1.hex?

Any improvement or overboost fix in DSG?

No official changes. It's just hosted there as we're working with a few people behind the scenes on new functions. That said, shouldn't hurt anything either if you run it.

[George @ BMS]

Thanks George! I will have a look, but there’s 2 files on the last update, should I update to both or which one is it? Looking forward on your comments / map suggestion on my logs I sent you.

And by the way, does the 0-60 timing work? I haven’t tested and I haven’t launched or anything, but going in I see I have a best time of 5.9s, which probably was from yesterday when I pulled out from a redlight and then floored it in 2nd gear

It works on the IOS but is not supper accurate. For that get teh Draggy.

I noticed now we stacking your car so no need to do the update.

[Istvan]

It works on the IOS but is not supper accurate. For that get teh Draggy.

I noticed now we stacking your car so no need to do the update.

Great! The dragy is already ordered from you and on it’s way. Should be here any day. Will be great! 👍🏼

[moffe]

Still no 7th gear supported in the new firmware?
The app only shows max 6th gear when I'm on 7th on the facelift.
Well not a big deal and probably doesn't make any difference but I just noticed it

[Terry @ BMS]

Still no 7th gear supported in the new firmware?
The app only shows max 6th gear when I'm on 7th on the facelift.
Well not a big deal and probably doesn't make any difference but I just noticed it

That value is just read out of the DME so whatever it spits out is what we use. It's not uncommon for them to max out at 6th for logging purposes, for whatever reason.

[Terry @ BMS]

Great! The dragy is already ordered from you and on it’s way. Should be here any day. Will be great! 👍🏼

You're going to love that thing. It's so easy to use for performance metrics.

[MK7GTI]

Hi,

@George @Terry

The problem of Overboost in shift gear in the DSG has not been solved in this last FW?

I have some suggestions to make, if possible, in the next updates:

- Correction of Overboost on gearshifts in DSGs (I know this is already solved for next FW.),
- DME codes to DTC with descriptions,
- Possibility to limit the boost to ECU Stock map,
- Cold Start Protection - limits boost at 50% Oil temperature below 50 ° C, at 51-65 ° C limits at 75% and above 65 ° C releases full boost,
- RPM Limiter to create a Vallet or Anti-Theft map.

I think it will be very interesting,

Thank you,

The option to reduce boost on the map is very interesting for stacked cars. I'm looking to upgrade OEM IS38 to my GTI MK7 and would like to use APR with JB4 stacked this feature would be fantastic.

[George @ BMS]

The option to reduce boost on the map is very interesting for stacked cars. I'm looking to upgrade OEM IS38 to my GTI MK7 and would like to use APR with JB4 stacked this feature would be fantastic.

We doing some evaluation now on stacked cars and should put it up soon.

[Istvan]

You're going to love that thing. It's so easy to use for performance metrics.

I’ve got it and I love it. It’s wet and cold outside so can’t do any launches but still managed a 0-60 in 4.2 spinning like hell and short shifting to second at about 15mph to get som grip.

But 60-130 I managed in 11.1s, and with some further tuning with George hopefully I will be able to do a high 10s run later.

And decreasing boost on flashed ecu would be great! 👍🏼👌

[RafaMonteiroo]

We doing some evaluation now on stacked cars and should put it up soon.

Please, I really need

[xperiat3]

5A firmware

Hello can anyone post 5A firmware here? Thanks

[moffe]

Hello can anyone post 5A firmware here? Thanks

You can find that on the first page, post 3

[Glfdriver18]

@George @Terry
Just installed the JB4 and updated to latest 5A FW on my 2018R.

Just checking, based on the info here should I be seeing the oil temp and DSG transmission temp with this update? Neither are working on the gauge display in the app.
Also, the gear display is super nice when in D or S mode (it’s already on the digital dash in M mode) but it would be even better if it showed the 7th gear. Since the car is obviously outputting the data (it shows 7 on the dash) hopefully this can be accomplished?

Thanks!

[George @ BMS]

@George @Terry
Just installed the JB4 and updated to latest 5A FW on my 2018R.

Just checking, based on the info here should I be seeing the oil temp and DSG transmission temp with this update? Neither are working on the gauge display in the app.
Also, the gear display is super nice when in D or S mode (it’s already on the digital dash in M mode) but it would be even better if it showed the 7th gear. Since the car is obviously outputting the data (it shows 7 on the dash) hopefully this can be accomplished?

Thanks!

Hi,

The oil temp and transmission temp is not supported on the VW JB4's .
We will be adding 7th gear down the line. It should have displayed assuming the data goes +1 each gear but it seems the ECU output is different for 7th so we going to have to hunt that down.

[andrescaCO]

Stacking Unitronic Stage II with Big Turbo Loba472

Dear @George

I got a JB4 to my Audi S3 2014 and I would like to improve my car to high limits due I have big turbo from Loba, could u help me to setup a map 6 to do better work.

Thks so much just waiting for your reply

Andres

[George @ BMS]

Dear @George

I got a JB4 to my Audi S3 2014 and I would like to improve my car to high limits due I have big turbo from Loba, could u help me to setup a map 6 to do better work.

Thks so much just waiting for your reply

Andres

Got your email

[Glfdriver18]

Hi,

The oil temp and transmission temp is not supported on the VW JB4's .
We will be adding 7th gear down the line. It should have displayed assuming the data goes +1 each gear but it seems the ECU output is different for 7th so we going to have to hunt that down.

Gotcha, thanks for the reply.
I know I read elsewhere that you wanted to keep some channels open for future use and to keep the sampling rate high. FWIW however, those two items (more so oil temp than trans though) are only accessible via OBD data for the car. Since the JB4 is using that port, with no ability to split the signal to another gauge, the app is the only option for that info. It wouod be very useful to have those parameters for track work.
I hope you can find a way to add them in the future.

[George @ BMS]

Gotcha, thanks for the reply.
I know I read elsewhere that you wanted to keep some channels open for future use and to keep the sampling rate high. FWIW however, those two items (more so oil temp than trans though) are only accessible via OBD data for the car. Since the JB4 is using that port, with no ability to split the signal to another gauge, the app is the only option for that info. It wouod be very useful to have those parameters for track work.
I hope you can find a way to add them in the future.

Is the oil temp not available in the in cluster display on your car?

Will look at the trans. We adding WGDC next cause many people will need that to trouble shoot leaks as the cars are getting older.

[Glfdriver18]

Is the oil temp not available in the in cluster display on your car?

Will look at the trans. We adding WGDC next cause many people will need that to trouble shoot leaks as the cars are getting older.

Awesome, thanks. Yes, oil temp is avail in the cluster display, however it 'takes over' the whole display with that one line of info, it's a massive waste of the digital dash when it could be right on the tablet screen with the other gauges. But you're correct, it can be done.

[RafaMonteiroo]

I think it's nice to have jb4 available in oiltemp, even available in a cluster in the car, too ... the more information you have in the datalog, the better ... if you also have external temp input, it would be nice too, to compare day logs warmer or colder ...

also being available oiltemp, to make the question of boost protection by oil temperature, not water, would be safer ...

Thank you

[CrAzY-HoRsE]

I see the revision is going up on the VW_JB4_OBDII_5A file, what does it contain and is it worth installing or should I wait for an official release.

[MK7GTI]

Any news about reducing the flash boost on 1st and 2nd Gear?

[RafaMonteiroo]

I see the revision is going up on the VW_JB4_OBDII_5A file, what does it contain and is it worth installing or should I wait for an official release.

is official, with Auto Shift Redux working, to fix Overboost in Shift Gear in DSG

Any news about reducing the flash boost on 1st and 2nd Gear?

I Need

[r_diaz13]

Latest VW JB4 firmware attached.

VW_JB4_OBDII_4_T2:



1) Revised fuel mapping for improved drivability and performance.

Is this latest firmware also compatible with the JB4 for a Gen3 Jetta GL2014?. I know the Gen3 motors for the Jetta and GTI are different.

[RafaMonteiroo]

Is this latest firmware also compatible with the JB4 for a Gen3 Jetta GL2014?. I know the Gen3 motors for the Jetta and GTI are different.

One time George told me it's the same,
Just set Future Use D to 1, as this engine works differently.

[George @ BMS]

Is this latest firmware also compatible with the JB4 for a Gen3 Jetta GL2014?. I know the Gen3 motors for the Jetta and GTI are different.

Its compatible to all the Gen3 motors. 5A_3 is the latest version now.

[r_diaz13]

Its compatible to all the Gen3 motors. 5A_3 is the latest version now.

Thanks George. I’m loving my car and super impressed with the results.

[blackout1231]

If I wanted to upgrade to the JB4 (currently have the JB1), is this the one I would order?

http://www.burgertuning.com/vw_audi_eA888_JB4_upgrade_kit.html

LHD REV1 Group 4 ***B***

2014 VW Jetta GLI

[themyst]

Hi, anyone having issues with the 5A firmware popping an EPC when you try to connect to the unit while the car is running? Using iOS app with rev3 bluetooth module.

[Terry @ BMS]

Hey Ben, email George, he's our resident VW pro and may have some idea. I seem to remember some similar bug at some point we fixed.

[RafaMonteiroo]

@George @Terry

Any news for next FW?
and about reducing the DME_BT boost on 1st, 2nd and 3rd Gear?

Thx

[George @ BMS]

@George @Terry

Any news for next FW?
and about reducing the DME_BT boost on 1st, 2nd and 3rd Gear?

Thx

Its going to take some time for that. We not to push out S4 and RS3 units next before we look at that further. Its on the list of things to do though.