boost fluctuation - Subaru WRX Forum
 
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post #1 of 14 Old 02-28-2010, 01:16 PM Thread Starter
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boost fluctuation

so lately whenever i go full throttle my car boosts to 17psi then immediately drops to 11 then goes to 14 and stays there. i did a boost leak test yesterday and found two leaks. i fixed them and now it boosts to 16psi drops to 12 and then goes to 14. there are no leaks all the way up to 18psi. im getting a protune done next monday so i need to get it fixed by then. my mods are catless uppipe and TBE. any ideas?
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post #2 of 14 Old 02-28-2010, 03:27 PM
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Ebc...?

Brad

AEM CAI, Perrin ELH wrapped, Catted Downpipe, Stage II XPT tune, K4RT30Y STS, lip, shark fin
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post #3 of 14 Old 03-01-2010, 08:57 PM Thread Starter
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dont have one and cant afford to get one. will the tune take care of it?
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post #4 of 14 Old 03-01-2010, 10:57 PM
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Maybe, but a tune can't repair an issue caused by an EBC. You will know if the tuner is fighting boost spike and inconsistent boost. Problem is, you'll be paying whether it fixes it or not. I'm not an expert at all, but I thought your year benefits quite a bit from a 3 port.

Brad

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post #5 of 14 Old 03-01-2010, 11:42 PM
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So you can tune but can't get a bcs? You can go to grainger and get a 3-port bcs for 35 bucks.

-Chris
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post #6 of 14 Old 03-02-2010, 09:07 AM
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do you have a link to that site? i need to get one as well thanks
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post #7 of 14 Old 03-02-2010, 12:04 PM Thread Starter
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if i get a three port bcs will it be safe to drive it 2 hours to get it tuned if i stay out of boost?
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post #8 of 14 Old 03-02-2010, 12:45 PM
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I wouldnt push the issue. Just get there, then install it right before they start to tune the car.

Joshua
"2007 WRX- PPG'd, 20G- Tim Bailey tuned
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Cobbtuning.com"
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post #9 of 14 Old 03-02-2010, 02:09 PM Thread Starter
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ok i guess thats what ill have to do. anyone know anything about these guys?
IxizEBCS
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post #10 of 14 Old 03-02-2010, 05:37 PM
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Get a grimmspeed, they are pretty much the best for about the same price.

Brad

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post #11 of 14 Old 03-02-2010, 07:47 PM
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Brad is right about Grimmspeed being (arguably) the best 3 port bCS out there.
https://www.grimmspeed.com/catalog/p...37c10f5mcpqsd7 is the link.
I have talked to several tuners about switching over. As I went with the cheaper option off the bat. Yes it works, but at the time Grimmspeed wasnt finalized on it for one, but should have waited. The tuners I have talked to and worked with both highly recommend the Grimmspeed and have never had a problem with it.

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Cobbtuning.com"
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post #12 of 14 Old 03-03-2010, 12:01 AM
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Little cheaper here.

Import Image Racing: Grimmspeed 3-Port E B C S 02-05 WRX

Brad

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post #13 of 14 Old 03-03-2010, 08:43 AM Thread Starter
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thanks ratfink. i ordered one from there. hopefully it will be here in time
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post #14 of 14 Old 03-03-2010, 06:07 PM
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Shoot him an email, he will respond almost immediately. Or give them a call. They will speed up the pace if need be.

Brad

AEM CAI, Perrin ELH wrapped, Catted Downpipe, Stage II XPT tune, K4RT30Y STS, lip, shark fin
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