i just finished my tubo on my 95 civic d16z6. i have a t3/t04b with external deltagate wastegate dsm 450s. i drove it for the first time today and i hit 3psi. the vacuum is reading around 20-23 at idle. so i tightened the spring drove again and still hit 3psi. then i changed it to a stiffer spring and still 3psi. so i thought im leaking boost in the intercooler piping. so i tightened all the clamps real tight and still 3psi.
the only thing i can think of is there is another hole thats open. can it leak there? i have the bov teed into the fpr vacuum and the boost gauge also. everything else is fine runngin good just wont boost right. please help.

 

another hole that says vacuum in the wastgate

 

are you running a filter and what is it? if you are running just screen and some sort of fabric over the inlet it's restricting it. if that's not it you have a leak in the system somewhere...coupler or fmic.

 

im running a filter. i noticed that there is a nut under the cover of the wastegate where the spring goes. am i suposed to do anything with that??