stock bov on 16g?

[subiekillrGST]

Hey everyone I just got my evo 3 16g GT installed yesterday, it comes with a 34 mm flapper. I am experiencing boost creep it jumped up to 17 psi then i let off. So what I did was put my stock bov on and now it stays at 12 psi. I wanted to go to the track and see the improvements. My question is, is my stock bov ok for 12 psi on this turbo? I have a greddy type s that i plan on putting back on once i buy a new cat to put on. Thanks for the help.

 

[oldman]

Your boost creep is solved because the bov will start to leak at 12psi, well if you're lucky. I suggest putting the Greddy type s back in and deal with the boost creep properly.

 

[subiekillrGST]

I have a full 3 inch turbo back exhaust (no cat), I was wondering would it help my boost creep if i put the stock downpipe back on with the stock gutted cat?

 

[CanadianTSi]

Your boost creep is solved because the bov will start to leak at 12psi, well if you're lucky. I suggest putting the Greddy type s back in and deal with the boost creep properly.

Agree'd your making the turbo work alot harder than it has to becuase you basically have a big boost leak.

 

[subiekillrGST]

Yeah I understand the boost leak with the stock bov, but with the stock downpipe and a gutted cat would that help even just a little you think?

 

[oldman]

I have a full 3 inch turbo back exhaust (no cat), I was wondering would it help my boost creep if i put the stock downpipe back on with the stock gutted cat?

I think most of us are here for the same reason, performance gains, and boost creep is one of the side effects of performance gains. You can deal with boost creep in two ways.

1. Deal with it properly either via porting or external wastegate setup and keep the performance gain.

2. sacrifice performance which you have work so hard for by either restricting the exhaust flow or in your earlier case, by creating a huge boost leak. I would never recommend #2 because you could have achieve the same result by going with a smaller turbo that will not creep.