Audi s3 forge 008 yellow spring

[Coless3]

What should my boost pressure be? How should I be driving the car to see my highest boost value?

 

[firestorm]

spring in the dv doesn't determine your boost pressure.
It's dependent on the boost map on your ecu, that may be affected by leaks, temp and any error conditions.
Later cars such as amk and bam engines have more variables.