Quoting prove_it:
Quoting chop91vr4:
Quoting prove_it:
If you haven't set up the turbo yet, how do you know it creeps?
If your going for more than 20 psi I doubt you'll have much creep anyway. It tends to happen more at lower psi targets.
I never said anything about boost creep, just that I have been researching and see that external are more precise on regulating boost and I would have it dump back into the exhaust so it wouldn't be obnoxious.
Oops, thought you had, my bad. I run a S16G at 22-25 psi via ecmlink boost controls. I have zero creep issues and can control it perfect down to 18psi. Less than that though it wants to creep due to the amount the wastegate is trying to bypass. I'm using a 2.5" exhaust which helps control creep a lot. 3" exhaust has so little back-pressure that the exhaust gases will try to go out the turbine instead of the wastegate due to the lesser pressure. That's what causes creep on 16g turbos. Your planning on running over 20lbs boost, so the likely hood of having a boost creep even with 3" exhaust is very slim. You may see a spike in pressure upon spool up, just due to the characteristics of the quick spool, but it will settle down to your target. This little spike is fun and will not be an issue.
You can run an external gate, but for what your describing, you don't HAVE to run one to control the boost where you'd like. Save your money for other more important upgrades.
Great thank you for the info, so bad news now, I took apart the 16G that came in a box with the car that I was rebuilding and saw all kinds of cracks in the exhaust housing side, it's garbage! /ubbthreads/images/graemlins/mad.gif /ubbthreads/images/graemlins/bawling.gif