If your losing 1lb/sec, ya gots a leak. It's probably where the compressor housing bolts to the turbo it's self. Pressure it up to 40lbs and use a little soapy water and spray it around where you hear the leak. Also around the boots and intake horn.

 

Don't matter where it is, here's how to find it. https://www.dieselbombers.com/cummin...tructions.html

 

well the leaks are coming from the back of the compressor housing where the bolts are. Guess I'll call bd this week and talk to them I tried tightening them and still dies it. Should I attempt to take the bolts loose and check it out to see if there is a gasket or just pay the rediclous shipping amount to sent it back to them? I'm my opinion this is BS as much as I have went through with this turbo. I've been battling this boost issue since I got it. I'm gonna put the stock back on this week to make sure I can still hold 40 with the stock so I can make sure it's not the truck.