You "control" the pressure/shaft speed via wastegate control, where you actually end up depends on the total intake restriction presented by your engine at whatever rpm it is at.
The efficiency lines dictate the % of theoretical compression efficiency you achieve, the rest being delivered to the air in heat.
You cannot just "pick" a point to operate at.
Last edited by Slides; 07-27-2012 at 06:54 AM.
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