N54Tech.com - International Turbo Racing Discussion
Prev Previous Post   Next Post Next
Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
Posts: 29,353
Join Date: Jan 2008
Default F90 2018+ M5 JB4 - 03-28-2018, 06:50 PM

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.

This is the central point of contact for all 2018+ F90 JB4 related information. Anything from install directions, to firmware updates, to settings, to frequently asked questions. Any and all relevant info is linked in this post. If you come across something missing from here be sure to let us know.

Order the full F90 JB4 system here.

Map changes, datalogging, updates are done using the BMS data cable or the JB4 Mobile bluetooth kit.

JB4 Mobile Smart Phone wireless connection directions Click here
BMS data cable hard wired directions Click here

Dyno Results: 694whp & 693wtq
Drag Results: Best so far: 10.4@135mph JB4, map3, race gas mix. 2.70s 0-60 lol.

Map Guide as of v3 firmware:

Map 0: Stock operation, JB4 disabled
Map 1: Default performance map, 4psi peak request over stock
Map 2: 22psi absolute boost profile, 93 octane OK. For competition packages cars and/or in warm/higher elevation climates map1 might out perform map2.
Map 3: 25psi absolute boost profile, requires higher octane like unleaded racing fuel
Map 4: Low boost VALET map -- Ideal for when "friends" are driving your car
Map 5: 26psi absolute boost profile, requires unleaded racing fuel
Map 7: 27psi absolute boost profile, requires unleaded racing fuel
Map 8: water/meth progressive map -- under development

Click on firmware file at bottom of this post to download.


1) Redesigned boost by gear system. Boost in 1st, 2nd, and 3rd gear now represents the amount of boost to subtract from the boost target. This allows you to set boost lower than stock when slippery track conditions dictate. When using launch mode of the car "bogs" shortly after the launch reduce boost in 1st gear until you're able to get a clean launch.
T1) Adjustments to FF under absolute target maps to improve boost targeting.


1) Adjusted map1 to peak request of 4psi over stock, to match new BMS Stage1 mapping. Making Stage1 and JB4 map1 effectively similar tuning.
2) Reworked the code reading function so codes are properly read from both ECU's independently. May require interface update to work properly, if you have problems reading codes with this update, contact Donnie for the BETA JB4 Mobile interface.
3) Added higher boost map5 @ 26psi peak, and map7 @ 27psi peak, for those looking to push records on straight MS109 racing fuel.


1) Revised boost mapping to improve partial throttle smoothness on absolute target maps 2 & 3.
2) Adjusted map4 to an 8psi VALET map. Perfect for when you want to save gas or lend the car to "friends".
3) Revised boost by gear logic for improved performance. You can now target boost below the factory target if desired.
4) Wastegate control logical change to improve boost targeting during runs with multiple shifts, like 1/4 mile runs.
TEST2: Fixed some minor bugs with TEST1 on partial throttle control
TEST3: Further low throttle refinement

Default settings:

Name:  jb4_f90_defaults.jpg
Views: 3996
Size:  90.5 KB

Map Switch In Dash:

How to attach BlueTooth kit:

How to update firmware:
Attached Files
File Type: hex JB4_F90_S63TU_3_T2.hex (71.5 KB, 425 views)
File Type: hex JB4_F90_4_T1.hex (72.4 KB, 309 views)

Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

vBulletin Skin developed by: vBStyles.com
Copyright © 2007 - 2018, N54tech.com