Sensors have a range where they are accurate, Typically in the middle/two thirds area.
Reading OVER 70 on a 75 range, says that you might be 80 or higher in reality.
All of the back-pressure is not helping the EGR EFFECT inside your engine diluting the next charge. So whose waste-gates are you presently running?
It appears that you have plenty of energy to spin the compressor wheels at a lot less turbine in pressure.
Tom Vaught
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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