Jb4 Interface Program1/2/2023 ![]() ![]() Laptop connection using our BMS Data Cable via free Windows and Mac software.To connect to the unit to make changes or do logs you have two options: ![]() The upgrade process is explained on this link: ![]() JB1 to JB4 update instructions can be found here: ![]() Higher power levels are achievable using the various maps as seen lower down. The typical power gains on this setting are 35whp and 40ft lb. 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. Here is the info from burger taken from another thread. Check the installation guide below for additional information on identifying your existing hardware.I thought I'd start a thread with JB4 info and so use owners can discuss settings and any issues were might have. For the Stage1 hardware version systems purchased after approx 11/1/16 are REV2 and can be identified by an unused black Molex/2 position connector already incorporated in to the harness. Vehicles in the USA and most other countries are left hand drive (LHD) while UK, AU, SA, and a few others are right hand drive (RHD). When ordering use the drop down to specify left or right drive hand and your Stage1 hardware version. This JB4 requires exclusive OBDII/CANbus access while tuning is enabled and is not compatible with various CANbus enabled boost gauges or 3rd party devices that also require OBDII/CANbus. After the upgrade you can keep your old Stage1 board as a spare/backup. There is no longer a core exchange program available. The JB4 BETA features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more. Upgrades your existing BMS Stage1 to a EA888 JB4 BETA system. ![]()
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