Originally posted by 1BFC
I'm not sure where you have the waste gate signal referenced but here is one scenario that would turn into an increase in boost pressure after wrapping your plumbing.
If your waste gate signal is referenced to the compressor housing then any changes made to your intake system after the compressor will impact the resulting gauge readings you see.
If for instance you inadvertently fixed some boost leaks you had that you didn't know about when you had the plumbing off the car for wrapping... then you would see a increase in the measured readings.
If you have the waste gate referenced to the intake manifold then you would not see this happen and the readings would stay the same.
That's the one situation I can think of that would result in what you are seeing.
The wastegate is actuated directly from the housing via a nipple. The length of line is about 3".
The MBC is in between in this 3" section.
The guages is reading pressures via the intake manifold, after the TB.
Just installed a EGT tonight, found we are running 1200.. Looks like we can turn the boost up.