Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

06/07 wrx stock boost?

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Old May 16, 2008 | 10:03 AM
  #1  
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Red face 06/07 wrx stock boost?

I was wondering what the stock psi boost is on the ej25's for the TR's. Thanks.
Old May 16, 2008 | 10:36 AM
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should be around 11
Old May 16, 2008 | 07:56 PM
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The stock psi. boost should hover around 14-14.5 psi
I do belive.
Old May 18, 2008 | 01:11 AM
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what would that be in kpa? Thanks.
Old May 18, 2008 | 02:15 AM
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should be 14.5 psi for stock
Old May 18, 2008 | 10:26 PM
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that would be close to 1 bar or atmospheric pressure.
Old May 18, 2008 | 11:40 PM
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its 13
Old May 18, 2008 | 11:42 PM
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its 1044334 isnt it?
Old May 31, 2008 | 07:46 PM
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its 12.5psi
Old May 31, 2008 | 11:42 PM
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its 14.5... I just checked a stock map...POSITIVE
Old Jun 2, 2008 | 04:44 PM
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so is it 14???? im hitting 11psi 100%stock off the lot last week...drove a new one stock with exception of megan dp and it was making 14.5 so i assumed that 11psi was correct. anybody have any documentation on this?
Old Jun 2, 2008 | 04:56 PM
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its 14.5....

the TR and the WRX(non tr) have the same boost level)

umm... hmm.. y would it only be boosting 11psi..

are u having idle issues too?
if so check for vaccum leaks!
Old Jun 2, 2008 | 08:00 PM
  #13  
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check your fuel you put in
Old Jun 3, 2008 | 04:45 PM
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ya it feels a little flat and ive been worried...but have absolutely nothing to compare it to. vac is 20inHg @ idle...on the boost gauge...hmmm
Old Jun 3, 2008 | 06:06 PM
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spike at 14 but it doesnt stay at 14 all the time. =] 14 is your safety.

you can see your boost gauge go all the way to the top then drop down a little bit. boost controller would make it spike the whole time. but with proper tune only, or else is not very good for your engine.



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