Hello Guys,
after installing a turbo on my stock k20a2 I can't hold the boost low enough.
For the first I had installed a 0,6bar spring in my wg but the boost went up to 1bar/15psi in the boostcut at 7100rpm...
Now I've the smallest 0,2bar/3psi spring in it and the boost goes still up to 11psi at 8100rpm.

My dumptube is welded into the downpipe could this be the problem that I can't go lower?

I've seen other turbobuilds with bigger turbos and 8 9psi.

Sorry for my bad english, but I'm from Germany.