[Soden82]

Hi guys, just wondering if someone could take a look at a log for me. Car is a 11' FBO and JB4 w/ MHD BEF. Seems to be undercutting boost targets by a good 2-3psi. Happens in every gear I log in.

Updated my jb4 to the latest firmware about 2 months ago. Did I need to do anything with the diode before I updated? Not sure what board I have, but purchased the jb4 6/17. Trying to figure out if it's a hardware issue or just something with the jb4 and/or BEF.

https://datazap.me/u/msoden82/bmw-n5...0&data=1-4

[Johnny Boost]

Originally Posted by Soden82

Hi guys, just wondering if someone could take a look at a log for me. Car is a 11' FBO and JB4 w/ MHD BEF. Seems to be undercutting boost targets by a good 2-3psi. Happens in every gear I log in.

Updated my jb4 to the latest firmware about 2 months ago. Did I need to do anything with the diode before I updated? Not sure what board I have, but purchased the jb4 6/17. Trying to figure out if it's a hardware issue or just something with the jb4 and/or BEF.

https://datazap.me/u/msoden82/bmw-n5...0&data=1-4

Originally Posted by Soden82

Hi guys, just wondering if someone could take a look at a log for me. Car is a 11' FBO and JB4 w/ MHD BEF. Seems to be undercutting boost targets by a good 2-3psi. Happens in every gear I log in.

Updated my jb4 to the latest firmware about 2 months ago. Did I need to do anything with the diode before I updated? Not sure what board I have, but purchased the jb4 6/17. Trying to figure out if it's a hardware issue or just something with the jb4 and/or BEF.

https://datazap.me/u/msoden82/bmw-n5...0&data=1-4

Are you on a stock turbo? That seems pretty normal. You should upgrade your turbo if you want to make more boost up top.

[Soden82]

Originally Posted by Johnny Boost

Are you on a stock turbo? That seems pretty normal. You should upgrade your turbo if you want to make more boost up top.

Yup stock turbo and pump gas. Just thought actual boost should be close to boost targets