nek
10+ Year Contributor
- 832
- 9
- Apr 17, 2009
-
Pittsburgh,
Pennsylvania
Do you have an aftermarket boost gauge? Or are you relying on the stock one?
Thats the big thing. If he doesnt have an aftermarket with a 16g then all hell is braking loose.
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Do you have an aftermarket boost gauge? Or are you relying on the stock one?
No boost creep is when you build boost and it spikes to a higher boost than it should be at and tapers down, usually from exhaust that is too free flowing and the wastegate flapper not being big enough. Do you have an aftermarket boost gauge? Or are you relying on the stock one?
open o2 dump will help
what kind of exhuast system do you have?
I don't have numbers or proof whether it will or will not hurt performance. I was just setting out to see if I could eliminate my creep issue,and it worked great I am dead on 20psi now. It would creep to 27+ psi before, and it feels healthier than ever..
That's interesting if not a bit counter-intuitive. The divide reduces exhaust gas turbulence as it exits the turbo, and it looks like you're running at least 7psi less boost, yet the car feels healthier than ever.
This modification may negatively affect performance if you ever increase the boost later on, but that's speculation. It looks like it helped with the creep issue, so that's mission accomplished as far as you're concerned. However, I'm hesitant to recommend this technique to solve boost creep because of the permanent nature of the modification. Additionally, as mentioned, this may actually hurt performance as exhaust flow increases (potentially) in the future.
I'm a fan of running any given turbo when the car is sufficiently modified to handle the minimum boost the turbo will provide. In many cases you'll find with the evo3 16G, it's relatively high.
i havent done it to mine yet, but i did cut the divider out of the 02 housing.
i have a E3 16G with a obx tubular manifold, megan recirculating o2, catless 3" dp, and 3" cat back, needless to say i have boost creep. i am trying to set it at 20psi but i keep creeping up to 23/24 psi before i let off around 5500 in 3rd gear. it is a little frustrating, i am wondering, if i put my 2g manifold and o2 back on and try porting the inlet to the wastegate a little more will it help control my creep or is it a lot of work for nothing. does anyone have any suggestions, other than going to an external gate setup, which i am thinking about, just don't want to spend the money as i am trying to switch to speed density and my money is going elsewhere... any suggestions would be appreciated, thanks