OK let's clarify a few things here. Adding a turbo in and of itself does not add any stress to the machine. it will still only develop as much power as the load on it requires. even if you put a load on it, you only get (much) more power if you also increase fuel delivery!
No matter how much you increase the fuel, that is the max setting! the pump will only deliver the increased fuel if you put an increased load on it.
if for example you take a stock 806 that is set at 95 HP and put a turbo on, then set at 95 hp again, you will probably end up turning the pump DOWN, have cooler exh temps but still have the same torque at the flywheel at a given load.