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 capability. It has been tried and tested over many BMW models and it is time for the evolution to start for the VW market.
Complete JB4 Beta units are available at the introductory price of $429 here: http://www.burgertuning.com/vw_volkswagen_Group1_JB1_tuner.html
Upgrade units for JB1 users are available to at this link, both revision 1 and 2 units can be upgraded: http://www.burgertuning.com/vw_audi_eA888_JB4_upgrade_kit.html
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: https://n54tech.com/instructions/VW_JB4_install.pdf
JB1 to JB4 update instructions can be found here: http://www.burgertuning.com/instructions/JB1_to_JB4_upgrade_procedure.pdf
The upgrade process is explained on this link: http://www.burgertuning.com/vw_audi_eA888_JB4_upgrade_kit.html
Connectivity:
To connect to the unit to make changes or do logs you have two options:
- Laptop connection using our BMS Data Cable via free Windows and Mac software
- 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
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. https://www.youtube.com/watch?v=MjQjMWBVve4
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.
JB4 DP and Intake running our meth kit.
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.
JB4 with intake and some Eth on a stingy Mustang dyno
JB4 on streets with dp only
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:
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 circ*mstance 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.
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:
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.
