Thread: Stock boost PSI
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      02-23-2024, 04:45 PM   #10
PMW0801
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Drives: BMW M4
Join Date: May 2022
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Quote:
Originally Posted by mike@x-ph.com View Post
I have a competition, and my boost was 19-25

For piggyback users, including the JB4, note that piggybacks trick the ECU its making stock boost, so if you are checking the gauges, the power and boost will look identical to stock.

To measure the real boost, datalog and you have a column that says boost, which is your actual boost, and another column that says stock boost, which is what the car stock would be targeting if it was not tuned.
Wow that’s interesting. Thanks for clarifying that. So the one log that I did with the JB4 the boost cloumn was reading between 23-24 max boost on wide open throttle.
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