I have a 38mm tial style wastegate with two 5.83 Psi Springs in it. I uasally get 13.5 psi, the other day I noticed the hose conneting the wastegate to the nipple on the turbo was torn so I cut a piece off and moved it down. Now i only get 6 psi. I tried using a vacuum source insted but it didn't work I only got 4 psi. Any suggestions?

 

I usually get 10psi on both turbos , then one blew now I only get 5psi.
Thats pretty much my suggestion

 

Get a boost controller of some sort,thus you can control the amount of boost u want.