I feel like the more I do to this car, the less I know!!!!.. When you look thru these logs, are there anything that tells you that the turbo is pushing all in???
It is time for a new turbo as soon as you have half of the money you'd need to buy it.
Turbos are rated to deliver a certain cfm of air. If you are moving close to that then its time. I'm sure there are other factors that will determine a need as well.