[440dart]

heres what i got

stage-3 cal
+40s
srt-4 intercooler
full 3" exhaust
spikes to 15psi then drops down to 10 how do i fix this "stock turbo" :bang head

 

[darktone]

really too many variables to guess on the HP. Have you tightened your wastegate?

 

[440dart]

how do i do that

 

[Fast4Ward]

put a stiff spring on it. Should help.

 

[darktone]

They have adjustable rods on the T3's. I was having the same problem as you and a forum member suggested tightening the rod and it almost eliminated the problem. I turned in the rod about a 1/4 inch.