Quote:
Originally Posted by gargoyal
cant talk for JB1 but SSTT is not based on altitude. (...) Could you point me to any BMW documentation that quotes the 11 psi ? (I’m being serious not sarcastic). I have seen 11psi a lot in the forums, but not in any official documentation or Mags
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You misunderstood - I meant that the BMW software can compensate for unfavorable atmospheric conditions (such as altitude) by increasing boost up to 11 PSI. So the JB1 and SSTT are setting their boost targets to these values, safe in the knowledge that BMW would not hesitate to work the turbos more.
This amount is not specified in any public documentation as far as I know - it's something the tuners discovered when breaking the OEM program. :smile: