Quote:
Originally Posted by limeypride
I have the JB4. It's working perfectly. I've enjoyed playing with map 6, boost-per-gear and RPM is great fun. Obviously, if you're tinkering, you want to be logging, too, to catch when you're running into knock, etc... but it does that, too. Maps and logging all done over Bluetooth with a hard-wired OBD II connection. I love this thing.
I've also used them for perhaps 6+ years without issue on 5 F10s, 2 F06s Gran Coupes and an X5M--that was exactly the same box, too.
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I've been running a map 6 23.5psi on pump gas for some testing.
have you played with the duty bias at all or have you been running the out of the box setting?
I really wish we could do duty bias by gear so we can adjust to keep the throttle opened more across pulls instead of using the throttle to control boost