[turbo2387]

I'm gonna elaborate for you a bit while you sleep Mike.

yes. because his TPS is out he has a POT switch installed. after talking with him this weekend we figured out that he is actually skipping a gear. that gear is 3rd lock-up. he is shifting 1,2,3,OD. this is most likely causing his main problem. when he goes race truck mode this 600rpm or so drop is causing the turbo to loose all its drive pressure. Where his smaller turbo use to be able to recover with just a cough this bigger single snuffs.

He will be installing a manual OD switch that allows the truck to shift 1,2,3,3LU then manually shift into OD at whatever RPM he chooses. Me thinks this will solve his problems.