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Thread: Why you should run the JB4 + Flash instead of just the Flash

  1. #1
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    Talking Why you should run the JB4 + Flash instead of just the Flash


    This brief article explains the importance of using a JB4 even if your BMW is already Flash Tuned. It specifically explains N54 applications but it mostly applies to all engines.


    1- Advanced Safety system

    • If boost exceeds your safety settings, the JB4 reverts to the stock map
    • If AFR is too lean (15% variance), JB4 reverts to the stock map
    • Extra safety for Port Injection and WMI




    2- Absolute Boost Control System

    • JB4 targets an absolute boost level where boost is always the same (Independent of external factors)
    • JB4 has ability to set max boost per gear
    • JB4 automatically tunes Wastegates and fuel trims
    • Autotune maps that gives max safe power based on mods, fuel, and IAT (Intake Air Temperature)


    3- On The Fly Changes

    • Boost Levels
    • Max boost per. gear
    • Gauges




    4- Better Feedback for the Driver

    • Ability to change ANY settings, map, gauges using the JB4 app (on phone) without the need for laptop connectivity
    • Ability to monitor real time boost, AFR timing, knock, and meth flow
    • Ability to data log and email it to BMS using the mobile app (without the need for any cable)
    • Ability to record data, 250x per second




    5- Complete Tuning System

    • Eliminates need for additional modules
    • No lift shift
    • 2 step
    • Anti-Lag
    • Port Injection Control
    • Flex-Fuel sensors
    • Water/Methanol Control
    • Ability to work as a cohesive unit rather than have multiple modules working separate




    6- FREE Upgrades and Support

    • Lifetime Firmware Upgrades and Backend Flashes
    • Free support from the BMS team




    7- No Change In DME

    • All DME table values stay intact
    • JB4 adds performance and safety while keeping DME 100% in charge




    Thank you to 'BMW Fanatic' on YouTube for the awesome explanation!
    https://youtu.be/fQ39N2SpPMc

  2. #2
    Join Date
    May 2017
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    Ontario, Canada
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    335i E93 N54
    Sweet info for those like me who have this on their roadmap.
    Soon!

  3. #3
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    Quote Originally Posted by Codes2 View Post
    Sweet info for those like me who have this on their roadmap.
    Soon!
    Awesome, glad you found it helpful!

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