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-   -   JB4 for M3/M4/M2C S55 (https://www.n54tech.com/forums/showthread.php?t=25401)

Terry @ BMS 06-14-2014 07:39 PM

JB4 for M3/M4/M2C S55
1 Attachment(s)

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 our master thread for S55 tuning info, dynos, track times, software, and updates! As usual to avoid clutter any technical support question posted to this thread will be deleted without being read. So be sure to use the support forum if you need individual assistance.

Order here: https://www.burgertuning.com/product...4-s55-jb4-beta

Install guide: http://www.n54tech.com/instructions/s55_jb4_install.pdf

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

JB4_S55 Map Guide as of v1_8_4 firmware:

Map 0: Disable JB4 / Full Pass Through Mode
Map 1: Stage1 map adding approximately 40whp and 40wtq across the power band on pump gas. Suitable for all stages and fuel mixtures.
Map 2: Slightly more aggressive version of map 1 intended for vehicles with bolt on modifications and 93+ octane fuel. Can also be used with E85 and racing fuel mixtures. Fuel pressure connector suggested.
Map 3: Slightly less aggressive version of map 1 intended for vehicles running on lower grade fuels such as 91 octane.
Map 4: Low boost / VALET / Safety Map
Map 5: //M low torque ramp power up to redline
Map 6: User defined map generally only used for diagnostics or troubleshooting.
Map 7: Race gas map. Requires 100 octane unleaded fuel and for the fuel mass connector to be installed. Can be used with or without the EWG connectors but will make more power with the EWG connectors installed. This map can also be used with up to 35% E85 but in some vehicles & conditions this may cause a high fuel pressure drop and resulting stuttering. If this occurs drop down to map 2.
Map 8: WMI map. Requires FSB controller for progressive mapping and safety systems. For pump gas a meth additive of 30-40 is suggested while for race gas/E85 + meth up to a 75 additive can be used. The higher the meth additive the more aggressive the boost curve. A meth additive of 60 would be roughly equivalent to map 7.

Note: map8 changes its curved based on your boost safety setting.

Setting of 30psi or less: Map8 targets a peak of 27psi with a 75 additive tapering towards redline. This setting is intended for OEM turbos.

Setting of more than 30psi: Map8 targets a peak of 32psi with a 75 additive with no taper to redline. This setting is intended for larger than OEM turbos like PURE S2 Turbos.

Note adding in a back end flash map and setting FutureUseD bit6 on changes the mapping characteristics to higher power maps meant to work with the back end flash maps.

E85 Mixtures:

On the stock flash mapping 5-6 gallons per tank and map1 or map2 may be used, with our E85 back end flash map loaded up to 100% E85 can be run on maps 2, 5, or 7.

Basic overview of the wheel controls:

Install video of full Stage3 using OBDII CANbus connector:

Current dash settings as of OBDII v1.1 firmware:

Exhaust Valve Mode:

Toggle between flap open, flap closed, and OEM operation, by pressing the button for 2 seconds and letting go. The left blinker will flash for valve open, right blinker for valve closed, and both blinkers for OEM operation. The valve setting is persistent and will remain in effect until you change it. If you hold the button too long you'll jump in to the in dash menu system below.

'OBDII In Dash Menu

'0 map menu, map shown on tach (tach shows Map)
'1 Active Sound MUTE. (tach = 0 OFF, tach = 1000 ON)
'2 Boost gauge on fuel, scaling in dash is 0 to boost safety setting, turns on when gas pedal is pressed 60% or more and turns itself off when you resume low throttle use. (tach = 0 OFF; tach = 1 Boost Only; tach = 2000 Boost on fuel, Meth on speedo ring; tach = 3000 Boost on fuel, Timing on speedo ring; tach = 4000 Boost on fuel, AFR on speedo ring)
'3 LED MAX brightness mode. For those with factory LED headlights this option brightens HALO during nighttime operation. (tach = 0 OFF, tach = 1000 ON)
'4 Delete Fault Codes.
'5 Dash Mode. tach = 1000, SAE; tach = 2000 Metric
'6 1st gear boost limiter. (Tach = boost cap / 3)
'7 2nd gear boost limiter. (Tach = boost cap / 3)
'8 3rd gear boost limiter. (Tach = boost cap / 3)

Free unlocked JB4 back end flash maps and details are posted here: http://www.n54tech.com/forums/showthread.php?t=51166


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


************************************************** ************************
*Options(formerly FUD) S55 M3/M4 FutureUseD seletions v1.8+
************************************************** ************************

bit0 - Disable in dash BC button controls
bit1 - Disable wastegate/FF adaption learning for diagnostic purposes
bit2 - Enable E85 cold start algorithm
bit3 - Disable hot/cold oil temperature safety
bit4 - Disable startup sweep
bit5 - Test Duty Bias Learning Algorithm
bit6 - Vehicle is equipped with a back end flash map
bit7 - Disable EGT PWM decay function

FutureUseA: Negative offset to dutycycle via EWG connector to correct for over boost conditions when PWM is low

Map6: Values of less than 10psi under boost 1500rpm will cause map6 to act as an additive rather than absolute map

************************************************** ************************
*Meth Safety Mode All Versions
************************************************** ************************

0 - Raise boost on map8 as a function of meth flow and other data.
1 - Raise boost on map8 as a function of meth flow only.
2 - Start at normal target and failsafe to map4 IF flow drops below flow level for 1 second under boost. Enabled for all maps.
3 - When on map8 meth flow is completely ignored. Useful for using map3 as an adjustable non-meth map by setting meth additive from 0-75.
4 - Run a progressive meth safety on all maps. Progresses from stock (or flash only) boost target up to defined JB4 map target as a function of WMI flow.

Copyright Notice:
JB4 Software is Copyright 2006-2016 by Burger Motorsports Incorporated. All rights are reserved. De-compilation, disassembly, reverse-engineering, alteration, and redistribution in any form without the prior written consent of Burger Motorsports Inc. is prohibited.

Ando @ BMS 06-14-2014 07:56 PM

2 Attachment(s)

Here are the JB4_S55 default settings.

Attachment 80516

Attachment 45195

How to update firmware via JB4 Mobile:

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.

Finally some additional links:

Initial dyno testing here: http://www.n54tech.com/forums/showpo...9&postcount=56

VBOX testing here: http://www.n54tech.com/forums/showpo...&postcount=193

E85 dyno testing here: http://www.n54tech.com/forums/showpo...&postcount=274

PURE Turbo MT dyno testing here: http://www.n54tech.com/forums/showthread.php?t=28159

PURE Turbo DCT dyno testing here: http://www.n54tech.com/forums/showthread.php?t=28503

Information on water/meth injection integration here: http://www.n54tech.com/forums/showthread.php?t=31587

Chaddy74 06-14-2014 08:03 PM

What an awesome looking Car !!

j23a45m 06-14-2014 08:04 PM

wow very happy for y'all. can't wait to see the numbers o.0

Newguy123 06-14-2014 08:50 PM

Wow that thing is SICK! What do you expect stock out of it WHP wise?

j23a45m 06-14-2014 08:53 PM


Originally Posted by Newguy123 (Post )
Wow that thing is SICK! What do you expect stock out of it WHP wise?

my guess is 370-382whp

Track Master 06-14-2014 08:59 PM

Congrats Terry, looks better than I thought in a 4Dr.

JustinCredibleM 06-14-2014 08:59 PM

Excited to see the numbers!

rooringhusky 06-14-2014 09:30 PM

So sick Terry!!! Congrats on the new car. Your stable is getting pretty deep with all these awesome BMWs. Pretty jealous to be honest :)

P.S. Don't forget about the N54 guys. Haha just messing!

kawchkjf 06-14-2014 09:35 PM

wonder what kind of magic the burger family has on the grill for this i6tt

skysurfer 06-14-2014 09:41 PM

Other than the front bumper, Car looks nice

rustyminded 06-14-2014 10:33 PM

Congrats !!!

Kidduce 06-14-2014 11:05 PM

Best color out. That's a beaut.

PR3CI5N335i 06-14-2014 11:07 PM

Looks damn good. I want one! Can't wait to see the baseline and what you guys do with this car

XLG1@HBE 06-15-2014 12:09 AM


Stucks 06-15-2014 02:08 AM

looking forward to the stock dyno baseline, and what you can do with it once you get cracking on a tune!

andym3100k 06-15-2014 06:29 AM


Iloveboost 06-15-2014 07:09 AM

Sexy, i'm a little jealous! I really like the sort charge pipe plumbing, and I'm hoping it'll be simple to add a larger or secondary radiator to the A/W charge cooler.

2Times 06-15-2014 08:15 AM

What's on the list of parts to start producing for it? (other than ECU stuff)

marcoac14 06-15-2014 08:20 AM

Sooo nice


deemarr 335i 06-15-2014 08:20 AM


Terry @ BMS 06-15-2014 08:53 AM

Old firmware notes for posterity

JB4_S55_1_8_6 Firmware:

1) Adjusted PID system logic to allow smooth transition from positive to negative WGDC offsets. WGDC = 50 now represents no offset. Lower values are negative and higher values are positive. Default duty bias all to 50, PID gain to 20, FF to 50, with this firmware.
2) Adjusted boost by gear to be "subtraction" rather than target caps which allows smoother operation for those running various flash targets. A value of 5psi in 1st will reduce 1st gear boost by 5psi, for example.
3) Increased sample rate for analog sensors for smoother performance.
4) Added road speed to logging channels.
T7) Fixed speedo reading, was 10% high.

JB4_S55_1_8_5 Firmware:

1) Fixed bug with code reading in app stopping JB4 canbus operation until vehicle is restarted.
2) Added functionality for CANflap via JB4 mobile app. Currently enabled in Android version. Add CANflap gauge to JB4 mobile and double tap to toggle through CANflap options.
3) Fixed bug with gauges going wonky in dash mode on newer models.
T19) Further adjusted in dash gauges for newer models

JB4_S55_1_8_4 Firmware:

1) Adjustments to the partial throttle mapping when using absolute target maps. The JB4 will now accept targets below the flash boost target. Very useful for boost by gear. Setting 1st gear to 10psi actually gives you a 10psi target now, for example. Not just the flash map target which could be as high as 22psi if using a back end flash map.
2) On absolute target maps the JB4 sets the partial throttle boost profile. We've mapped it out relatively smoothly and will add a user adjustable option soon to make it more or less aggressive on the fly.
3) Revised the boost targets on map7 to better suit our new E85 BEF and 100% E85. Same map7 will be suitable for stock turbo on unleaded race fuel, we expect.
4) Adjusted map5 when equipped with a BEF to be more aggressive with a peak of 24psi. Perfect for situations where map7 is too strong for the car.
5) Hijacked the "ignition average" parameter to temporarily show an internal JB4 calculation. Information there won't be useful to you. Just to me when looking at logs. :drinking:
6) Adjusted map4 to target 8psi, regardless of the flash target, making it more like a true VALET map.
7) Added option for increased cranking fuel when on heavy E85 mixtures by setting FutureUseD bit2 on.
8) Adjusted MAP1 when equipped with a BEF to act as the "flash only map", for those who want to run flash only maps but have the JB4 active for safety systems, in dash gauges, CANflap, boost by gear, etc, this is a great option.
TEST2: Minor change to allowable TMAP voltage range to avoid plausibility fault.
TEST5: Changes to improve low throttle operation.
TEST10: Fixed bug on map1 when used with a BEF. Map1 with a BEF should run the flash boost target.
TEST11: Revised partial throttle blending when on absolute target maps.


1) Added back trans temp logging parameter
2) Adjusted startup sweep timing
3) WMI Algorithm Adjustments
T5: Fixed bug with bank2 fuel trims always matching bank1 fuel trims in datalogs (JB4 was always reading them properly, though)
T13: Fixed possible bug with "shadow code" delete not working properly.
T14: Change to trigger exhaust flapper valve faster during startup when enabled.
T15: Minor change to shadow fault code clearing.


Payam @ BMS 06-15-2014 10:25 AM


Originally Posted by Terry @ BMS (Post )
Only tuning is planned on our end but who knows what the future holds. I'm sure this car will attract plenty of attention from the entire community. :)

With some fine tuning, meth and racegas. I can see this car making 550whp or so. Congrats again Terry, can't wait to see it in person at the dyno!

Terry @ BMS 06-15-2014 10:30 AM

Went for a drive this morning and it feels pretty solid. I need to burn off this dealer gas so I can get some known good fuel in it before dyno testing it.

Don't have any diagnostics equipment on the car yet but did plug in a scan gauge and it was showing around 21psi of boost up top and 2-3 degrees advance. If these turbos flow similar to RBs that could put power in the 475whp range stock. Can't wait to find out. :)

hkninja 06-15-2014 10:45 AM

I will wait couple years to get this once Terry have all the nice parts for it ;)

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