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Old 01-21-2013, 07:00 PM   #1
2011scoobywrx
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Default 25psi 2011 wrx. NEED ADVICE

I recently bought a used 2011 wrx. It has a Perrin CAI, Ultimate performance exhaust from the downpipe to the tips. Not sure of the brand of the downpipe.. It also has a Aem mechanical boost gauge and a digital wideband.

I am new to Subaru cars and I have been doing lots of research about mods and do's and dont's. The car runs really well, super fast and the wideband reads within normal parameters under boost and while cruising.

My question is, how do I know what tune my car is running? Id like to reduce the boost from 25psi to maybe 16lbs for daily driving and reduce the wear on the engine. Can a boost controller do this? Should I change the intake to Aem/cobb and use the shelf maps with the Cobb AP?

Feedback would be greatly appreciated
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Old 01-21-2013, 07:12 PM   #2
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Fill out your profile.

Find a local tuner to find out what tune your car has. 25 PSI is WAY too high for Stage 2 mods like you've mentioned.
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Old 01-21-2013, 07:14 PM   #3
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You're boosting 25psi? Without meth?

Easy: buy AEM intake and use the Cobb map

Best: protune with what you have and turn the boost down

I'd get a protune. But if you don't live near a tuner, go Cobb.
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Old 01-21-2013, 07:24 PM   #4
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im guessing you bought it from a private party? 25 psi is nuts on a stage 2 car, im surprised the IC hasnt exploded on that much boost. if you plug in the AP it should tell you what map you are currently running
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Old 01-21-2013, 07:29 PM   #5
2011scoobywrx
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Yes was bought from a chevy dealership. They didnt know much about it. Im sure it has some type of tune since it runs pretty well and hasnt blown up already.

It has the Perrin intake so wouldnt they have had to have a protune or custom map made?

I am going to get a Cobb intake and cobb ap and use shelf maps hopefully. will i have problems plugging in an ap if it is already tuned?
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Old 01-21-2013, 07:29 PM   #6
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Could it have more mods that i dont know about if its running that kind of boost?
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Old 01-21-2013, 07:33 PM   #7
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is the stock turbo on the car? no one runs 25psi on the stocker, even on e85. you might want to find a local tuner or someone who is local who can take a look at the car.

just fyi the stock intercooler has plastic endtanks which are know to blow apart at 19+ psi. is the stock IC the car? take some engine bay pics. i wouldnt be driving that car on 25psi if its the stock IC and turbo..
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Old 01-21-2013, 07:33 PM   #8
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If the previous owner was smart they would have gotten it tuned with the Stage 2+ Intake mods listed. But that doesn't mean they did. Just because someone puts an intake on doesn't mean they'll always be smart enough to tune it.

We have no idea what mods are done to the car. That would be something for you to discover.
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Old 01-21-2013, 07:34 PM   #9
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Could an aem truboost hook up to it and if i turn the boost down, not need to retune?
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Old 01-21-2013, 07:38 PM   #10
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the heat shield is on the turbo still so it looks stock... and as mentioned it has full turbo back exhaust and intake. The wideband reads normal 14.5 to 14.8 cruising. Goes to around 11 or 12 under hard acceleration. I will take some pics shortly!!
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Old 01-21-2013, 07:41 PM   #11
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Quote:
Originally Posted by 2011scoobywrx View Post
Goes to around 11 or 12 under hard acceleration. I will take some pics shortly!!
At wide open throttle?

God I hope not, that's WAY lean for WOT. Call the local tuners and see if someone recognizes the car and/or schedule a tune.
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Old 01-21-2013, 07:51 PM   #12
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Ouch.. 25Lbs of boost.. Buying used with that high of boost almost guarantees that the car has been ridden hard and put away wet.. expect shop time..

-Damien
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Old 01-21-2013, 07:55 PM   #13
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whats the best way of uploading pics? having trouble
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Old 01-21-2013, 07:58 PM   #14
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imgur.com works well.. just use the bbcode img link..

-Damien
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Old 01-21-2013, 07:59 PM   #15
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Quote:
Originally Posted by Damien View Post
Ouch.. 25Lbs of boost.. Buying used with that high of boost almost guarantees that the car has been ridden hard and put away wet.. expect shop time..

-Damien
The car isnt broken.. it only has 21k miles and not all of that was boosting 25lbs
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Old 01-21-2013, 08:00 PM   #16
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You cannot upload pictures to the site. Use (or create) an account at popular sites like IMGUR or Photobucket.
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Old 01-21-2013, 08:00 PM   #17
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photobucket or flickr.
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Old 01-21-2013, 08:01 PM   #18
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Quote:
Originally Posted by 2011scoobywrx View Post
The car isnt broken.. it only has 21k miles and not all of that was boosting 25lbs
let's hope it's not damaged..

-Damien
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Old 01-21-2013, 08:08 PM   #19
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Old 01-21-2013, 08:14 PM   #20
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Old 01-21-2013, 08:19 PM   #21
2011scoobywrx
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Quote:
Originally Posted by Damien View Post
Ouch.. 25Lbs of boost.. Buying used with that high of boost almost guarantees that the car has been ridden hard and put away wet.. expect shop time..

-Damien
Quote:
Originally Posted by Damien View Post
let's hope it's not damaged..

-Damien
Indeed
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Old 01-21-2013, 08:27 PM   #22
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cant tell about the turbo, but the IC and BPV are stock, so stop boosting till you get this sorted out. 25psi on those items is no good..
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Old 01-21-2013, 08:27 PM   #23
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All I see is a CAI and DP. It also looks like you have the stock boost controller, which I'm sure sucks to hold that kind of boost. You should get it up on a lift to check what other parts, if any, the previous owner slapped onto there. Like bigrob stated, the stock TMIC and BPV weren't designed those high boost levels with their plastic bits.

FWIW, I have a TP stage 3+ build and several other parts and I'm only doing 22psi on stock internals. I'm expecting the engine to give out fairly soon.
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Old 01-21-2013, 08:29 PM   #24
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can it be the gauge being not accurate?
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Old 01-21-2013, 08:30 PM   #25
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Crazy thought, boost gauge is off.

Dun Dun Dun
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