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Old 09-15-2013, 06:18 PM   #1
2008SUBARUWRX
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Default 2008 WRX boost issue

Hey guys I have a 2008 WRX and it has a cat back Agency Power Exhaust, K&N Short Ram Intake, Turbo XS BOV, but still on stock tune I'm pretty sure, and I'm having an issue with boost, when I go to get on it or anything I feel like the car is holding back, and like studdering a little bit if that makes any sense? Its kind of hard to explain, but it feels like I'm loosing boost then gaining it back right away but like it's cutting in an out, if anyone knows anything along these lines please let me know because this drives me crazy!! Thanks guys!!
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Old 09-15-2013, 06:40 PM   #2
Blackfin
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Pretty brave to put an SRI and catback without a proper tune.

You sure what you're feeling isn't misfiring?
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Old 09-15-2013, 10:23 PM   #3
Tripintaz
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Oh for the love of god....
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Old 09-15-2013, 10:30 PM   #4
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Quote:
Originally Posted by 2008SUBARUWRX View Post
but still on stock tune I'm pretty sure
You need to stay off the throttle until you know and/or scan the car. You could be in the process of blowing your motor... you could also be already dealing with a blown motor.
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Old 09-15-2013, 11:52 PM   #5
Bleichroeder
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Quote:
Originally Posted by Blackfin View Post
Pretty brave to put an SRI and catback without a proper tune.

You sure what you're feeling isn't misfiring?
I've been told catbacks require no tune what so ever. Also, some SRIs such as TSX don't require a tune either. There's some very conflicting info floating around this forum.
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Old 09-16-2013, 01:51 AM   #6
Cathexis
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No ones mentioned the BOV yet????

In conjunction with the intake.....

Oh my!
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Old 09-16-2013, 09:58 AM   #7
Bleichroeder
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No ones mentioned the BOV yet????

In conjunction with the intake.....

Oh my!

Ya know that's what I was gonna say. Your BOV is probably the culprate.
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Old 09-16-2013, 10:30 AM   #8
SlimJim8804
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Tune that thing.
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Old 09-16-2013, 11:12 AM   #9
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Old 09-16-2013, 01:31 PM   #10
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Quote:
Originally Posted by Bleichroeder View Post

I've been told catbacks require no tune what so ever. Also, some SRIs such as TSX don't require a tune either. There's some very conflicting info floating around this forum.
MY08+ WRXs are REQUIRED to get a tune if a different intake is being used. MAF scaling WILL be off, and COULD potentially damage the engine. Unless he has taken it to a tuner for a base line to check if everything is running 'safely', there's no way to tell. OP needs a tune with that intake.
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Old 09-16-2013, 01:37 PM   #11
takeadirtnap
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put it back to stock. Read all of the unibomber's posts. Re-read them. Study them. Then decide where to go from there.
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Old 09-16-2013, 01:50 PM   #12
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Originally Posted by RoadKillDMD View Post

MY08+ WRXs are REQUIRED to get a tune if a different intake is being used. MAF scaling WILL be off, and COULD potentially damage the engine. Unless he has taken it to a tuner for a base line to check if everything is running 'safely', there's no way to tell. OP needs a tune with that intake.
Aha, I was speaking in regards to an 07. Interesting!
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Old 09-16-2013, 03:14 PM   #13
2008SUBARUWRX
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Wow thanks for all the feedback guys! Getting kind of nervous now because of everything I've just read.. I bought the car the way it sits with all of those mods about 2 weeks ago, so I'm not sure if its tuned to be completely honest, is there any way to tell? I don't have a boost gauge installed yet but I just bought one so it will be soon.
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Old 09-16-2013, 03:15 PM   #14
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I'm a noob here but I would say hook that gauge up immediately check to see if you're running factory boost levels. Regardless you should get to a tuner ASAP and get **** sorted out.
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Old 09-16-2013, 03:17 PM   #15
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You can go ahead and start a WTB: Stock Intake thread
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Old 09-16-2013, 03:22 PM   #16
2008SUBARUWRX
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Yes I will be doing both of those things very soon thanks guys.
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Old 09-16-2013, 03:32 PM   #17
2008SUBARUWRX
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If I were to just get my car tuned with everything it has now will I be fine?
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Old 09-16-2013, 04:34 PM   #18
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If it's holding back and "studdering" and the cause is mechanical damage (e.g. a broken ringland), a tune will not fix the issue though it may prevent additional damage being done elsewhere in the engine.
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Old 09-16-2013, 04:49 PM   #19
2008SUBARUWRX
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So what should I do for starters like right away?
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Old 09-16-2013, 05:14 PM   #20
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Tune it rite now!!
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Old 09-16-2013, 06:50 PM   #21
xxKnight48xx
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Buy an access port. I'm fairly new here but I have read several threads on here already that say. If you have an intake you need a tune right away. And also with the bov you need a tune as well. I had issues like this with my speed 3 where it would literally cut out and kick back on full boost right away. I tuned it and it never happened again.
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Old 09-16-2013, 08:17 PM   #22
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Quote:
Originally Posted by xxKnight48xx View Post
Buy an access port. I'm fairly new here but I have read several threads on here already that say. If you have an intake you need a tune right away. And also with the bov you need a tune as well. I had issues like this with my speed 3 where it would literally cut out and kick back on full boost right away. I tuned it and it never happened again.
you cant tune for a vta bov. its metered air that should be left in the intake system. a good recirc bpv is the way to go over the plastic oem unit.
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Old 09-16-2013, 08:23 PM   #23
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Originally Posted by 424wrx View Post
you cant tune for a vta bov. its metered air that should be left in the intake system. a good recirc bpv is the way to go over the plastic oem unit.
I gotcha. The whole bpv/bov issue was a little confusing to me. Didn't mean to give misleading info.
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Old 10-13-2013, 02:16 PM   #24
BOOstiN2008
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I think you need to get a tune
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