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Default M3/M4 S55 JB4 - 06-14-2014, 07:39 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 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

Firmware Updates:

JB4_S55_1_8_5_T6 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.

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.
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.


Enabled alternative meth safety algorithms. Meth safety settings now as follows:

************************************************** ************************
*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.


1) Adjustments to map7 when equipped with a BEF (26psi peak absolute map)
2) Adjustments to map2 when equipped with a BEF (22psi peak absolute map)
3) Adjustments to map5 when equipped with a BEF (25psi peak absolute map, boost ramp up to redline)
4) Adjustments to JB4 fuel trim mapping
5) Added "metric" speedo setup under menu5, option 1. Shifted boost by gear adjustments each up 1.
6) Duty bias values are now used on all absolute maps regardless of setting. So be sure to default values all to 50 if you have them set to 0. We also suggest enabling FutureUseD bit5 which triggers the JB4 to adjust duty bias by RPM automatically on absolute target maps.


Note: If your duty bias (on user adjustment page next to map6) is set to 0 your absolute boost maps will under target. So default all those values to 50.

1) Made map7 more aggressive when equipped with a back end flash map.
2) Adjusted in dash speedo so it lines up properly with standard dash. We'll add a metric speedo option down the road.
3) Added additional in dash gauge options under menu2:
2/1 Boost on fuel
2/2 Boost on fuel, meth on speedo ring
2/3 Boost on fuel, ign timing on speedo ring (shows lowest cylinder)
2/4 Boost on fuel, air/fuel ratio on speedo ring
4) Added duty bias auto tuning by RPM. To test this out set FutureUseD Bit5 on, and we also suggest setting FutureUseD Bit1 on to disable FF learning. Default FF to 100, duty bias to 50 across the board, and as you do full throttle runs duty bias should optimize itself by RPM.
5) Added startup sweep when JB4 is enabled. Can be disabled by also disabling BC button for in dash controls (FutureUseD Bit0).


1) Redesigned CANbus logging module for high speed logging of all channels including timing 2-6, load, and calculated torque. Bank2 AFR, Bank2 fuel trims, and low fuel pressure are logged full time now.


1) Added extra logging parameters calculated torque and load for those running back end flash maps.


1) Changes to improve Fuel-IT Port Injection integration
2) Enabled WMI ethanol bits for PWM controllable WMI and hard wired ethanol sensors.

************************************************** ************************
*FUD S55 M3/M4 FutureUseD BIT Options 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

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.
Attached Images
Attached Files
File Type: hex JB4_M3_OBDII_1_8_3_T15.hex (82.4 KB, 1295 views)
File Type: hex JB4_S55_1_8_4_TEST11.hex (82.2 KB, 1840 views)
File Type: hex JB4_S55_1_8_5_T6.hex (84.2 KB, 504 views)

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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.
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