Boost Target
The boost pressure the tune is requesting. Actual boost should track this closely.
Why it matters
Consistent deviation indicates control or hardware issues. If actual boost is below target, you may have a boost leak or tired turbo.
What to look for
Boost actual should match target within 1-2 PSI during sustained WOT. Large gaps indicate hardware or control issues.
Related terms
The measured boost pressure in the intake manifold at any given moment.
How hard the ECU is working to keep the wastegate closed and maintain boost. 0% = fully open, 100% = fully closed.
When actual boost exceeds target and the wastegate can't bleed enough exhaust to control it. Dangerous at high RPM.
Want to learn more about Boost Target?
Get our free logging setup guide -- covers the channels you need, what to look for, and how to interpret your data like a pro.
See Boost Target in action
Upload your datalog and every finding, including Boost Target, will be explained in plain English with actionable next steps.
Analyze your own log