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Discussion Starter · #1 ·
Hello,
I have a 2004 wrx with the following mods.
Utec stage 2 octane challenged map.
Apexi cat back exhaust
3 inch downpipe plus mid pipe.
Turbo xs up pipe
Turbo xs rfl bov

I'm seeing about 16 psi at about 6500rpm, Is this bad?
If so what do i need to change to fix problem.
I'm running open loop boost.
Also no knocking ( the only map that would not knock)
Any help would be wonderful!
Thanks
 

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I have never heard of a stock turbo that could generate 16psi at 6500 rpm's. I'm not attacking you but I think that you might be mistaken.

If somehow you could run this much boost at high rpm's, you have likely max'ed out your injectors. I would do some datalogging to see what your boost and injector duty cycles are.

Finally, I would go to closed loop boost. You will see better boost control. You will also build boost faster.
 

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What kind of boost guage are u using and are you at altitude. A couple of factors that could up the boost a lb. or 2. If you're getting it off the data loger check to see how the MAP display is set, either absolute pressure relative to 1 atmosphere or gauge pressure. This obviously can also make a difference.
 
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