At 7000' altitude I can get a 24PSI boost value with the engine at mid-range RPMs (4k or so). I have not tried at a lower altitude. The boost also tapers off at higher RPM; I see 18PSI at 7000' elevation at the redline.does anyone know what is the max boost pressure which can give stock turbo ? i heard about 27.5 PSI,
These numbers are with EC P2 tune installed. I saw about 21PSI max stock.
All values reported by OBD2AA via torque via a bluetooth ELM adapter.