What is the maximum pressure the factory turbo can produce?

At what pressure does the turbo have a chance of overspinning. Too high of RPM's

My truck will push 38 psi loaded pulling a hill. I have the boost fooler on it.

Thanks a bunch for the info!

 

On the HE351 over 50 psi if you want to push it that hard, thats into the danger zone.

They will make 40 with no problems. I have 100k on one with the boost fooler and no problems even though it barks too much.

 

Had my stock set at 38lb for almost 3 years (98k) before replacing it with no problems.. Have it packed away in case I ever want to go back. I miss the quick spool the stocker had..

 

Thanks for the replies fellas!