here is what I found if anyone new to this is wondering how to calculate overboost,
1. Look at “ECU_PSI” (real boost) in your log.
2. Find “DME_BT” (target boost) for the same RPM.
3. If ECU_PSI is more than 2 psi above DME_BT, it’s overboost.
Example: If DME_BT is 17 psi and ECU_PSI is 20 psi, that’s 3 psi over—overboost.