I did them last year when the motor was running and I didn't change anything internal in the motor
I'm only let run in short intermediate runs a couple minutes at a time I'm mostly checking for any leaks but I haven't found any yet
I have to get a shorter water line going from the intake to the Turbo and also a shorter oil return line from the Turbo to the pan then I can start hooking the Turbo up probably in the next day or two
stay tuned
