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Old 10-09-2012, 01:41 PM   #1
rosedaleny806
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Default Wooshing Noise/BOV builsd up noise coming from BPV Area, Any Help!

So yes im having this loud wooshing/BOV building up sound coming from my BPV area. I installed a Forge BPV recently and it started making that sound so i thought it was maybe the BPV, i put the stock back in and still the same sound. i check my boost gauge and it seems to hit a lb or less of what im suppose to be hitting and it takes forever to hit peak boost. it has to be a boost leak but from where?? i was on Cobb Stage1 hitting about 16.7~ and only hitting about 14-15 and taking forever to hit it and now i divorced the cobb and only hitting about 13~ and again takes forever to get to it and my needle is wobbly at higher rpms (SPT boost gauge)

thanks again in advanced.
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Last edited by rosedaleny806; 10-09-2012 at 01:51 PM.
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Old 10-09-2012, 02:10 PM   #2
jayman4312
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You have a leak. either the hose that recircs, or the line that T-s into the bov/bpv. Or, and this is most probable, you did not use a new gasket when you installed the forge, then back to the stock one, and you are leaking there.

If all else fails, do a boost leak test. Search here how to do it.
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Old 10-09-2012, 02:21 PM   #3
rosedaleny806
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i used the same stock diamond gasket for both BPV's. the T fittings are so tightly on there idk if that could be it. ill check today, i was thinking it was the hose/rubber clamb that connects to the IC would that cause anything?? i heard numerous stories of that becoming loose.
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Old 10-09-2012, 02:45 PM   #4
SubyDrewski
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jayman is trying to say (I think) that you need to use a BRAND NEW gasket, as in, fresh out of the box, rip the plastic off first. The new one will get molded and formed to the parts as you tighten it down, making a good seal. Using old one means that it's already molded and formed, and may not seal the gap between the BPV and intercooler. Hope that helps.

-Drew

Last edited by SubyDrewski; 10-09-2012 at 02:46 PM. Reason: I can't spell :(
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Old 10-09-2012, 03:05 PM   #5
rosedaleny806
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hmm that could be worth a shot when i installed the forge bpv it wasnt loud though it progressively got worse. could it be the TB coupler?
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Old 10-09-2012, 03:06 PM   #6
jayman4312
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Quote:
Originally Posted by SubyDrewski View Post
jayman is trying to say (I think) that you need to use a BRAND NEW gasket, as in, fresh out of the box, rip the plastic off first. The new one will get molded and formed to the parts as you tighten it down, making a good seal. Using old one means that it's already molded and formed, and may not seal the gap between the BPV and intercooler. Hope that helps.

-Drew
Correct. You need a BRAND NEW GASKET EACH TIME!!! lol

Chances are you caused the probelm, if the problem started after you changes a part. Put the stock one on with a new gasket from the dealer, check that the hose going from the bpv to the inlet is connected all the way to the back of the bpv, and go from there.
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Old 10-09-2012, 03:17 PM   #7
SparkSilver10NM
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I'd try the new gasket first. also, make sure you have the correct springs and shims set up in the forge unit to hit peak boost. if you bought it used and it didn't come with any accessories you can buy a kit from forge.

Good Luck!
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Old 10-09-2012, 04:40 PM   #8
rosedaleny806
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well when i first installed the forge it was working fine not loud or anythign of the sort it gradually got worse i guess, im going to buy a couple of new gaskets just to have on hand lol can they be ordered online or can i only get them at the dealer? anyone happen to know a part number for them? i mgonna try that and give it a shot
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Old 10-09-2012, 08:38 PM   #9
rosedaleny806
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problem fixed!! stupid TB hose came loose again. all fixed!
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Old 10-09-2012, 08:48 PM   #10
Mr Wrex
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Please tell me you got rid of the rubber o-rings and the worm clamps...
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Old 10-09-2012, 08:51 PM   #11
rosedaleny806
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no!!! its still on there 2nd time its blown off!! what did you change yours with??
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Old 10-09-2012, 10:15 PM   #12
Mr Wrex
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On the hose that connects the TMIC to the throttle body are two rubber o-rings that sit on each end of the hose. Take them off and throw them away FOREVER. Spray hairspray on the inside of both ends of the hose and use t-bolt clamps to keep them on real tight. I run about 21psi and that hose never popped off on me once after I did that. If you have any questions, feel free to drop me a pm!
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Old 10-09-2012, 10:47 PM   #13
rosedaleny806
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wow thts crazy! im gonna try that out for sure! ill be pming u soon
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Old 10-11-2012, 09:12 AM   #14
rosedaleny806
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this piece of **** blew off again! im going to try that hair spray method, so take off the rubber slippery o rings and hair spray each corner of the TB hose and use t clamps? those arent t clamps alreayd on there? now isnt the hair spray gonna be flammable?????
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Old 10-11-2012, 09:16 AM   #15
jayman4312
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dont shoot flames into your throttlebody........ thats not where combustion occurs. its not napalm either, it doesnt stay flammable for very long
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Old 10-11-2012, 09:17 AM   #16
rosedaleny806
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ok so i have no worries once i do that method? have you done it too? would this work better??

http://www.ebay.com/itm/2008-2012-SU...850509&vxp=mtr

i want a permanent fix this is annoying i always have to worry about blowin the hose off lol
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Old 10-11-2012, 09:18 AM   #17
Mr Wrex
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Quote:
Originally Posted by rosedaleny806 View Post
this piece of **** blew off again! im going to try that hair spray method, so take off the rubber slippery o rings and hair spray each corner of the TB hose and use t clamps? those arent t clamps alreayd on there? now isnt the hair spray gonna be flammable?????
http://legacygt.com/forums/attachmen...1&d=1319103093

Take those rubbery pieces off the end so your hose looks like this. The hair spray won't ignite, it will help to slide the hose back on and seal it on better. Just spray the inside of the hose at the very ends, you don't need to fill the thing with hairspray fumes
Your stock clamps are called worm clamps, which cannot be tightened as well as t-bolt clamps. I'll attach two images of what they look like...
Worm:
http://img.directindustry.fr/images_...46-2816013.jpg
T-bolt:
http://www.siliconeintakes.com/image...lt_picture.jpg

EDIT:
Getting an aftermarket hose will help it fit better, but don't get one if you plan on getting a new TMIC in the near future.
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Old 10-11-2012, 09:52 AM   #18
rosedaleny806
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i dont think a TMIC will be anytime soon but from what i read new TMIC kits come with new hoses etc.

so i get a new hose and use tclamps and should be good to go?
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Old 10-11-2012, 10:05 AM   #19
Mr Wrex
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Quote:
Originally Posted by rosedaleny806 View Post
i dont think a TMIC will be anytime soon but from what i read new TMIC kits come with new hoses etc.

so i get a new hose and use tclamps and should be good to go?
Yes most TMIC kits come with new hoses that are specific to the TMIC sizings. Personally, I re-used my stock hose and t-bolt clamps and it holds under 22psi of boost, but the aftermarket hose will give you a little more piece of mind. Why not pick up the clamps at an autoparts store like Napa first, try that with the stock hose, then see if you really need a new hose or not?

FYI the clamp sizes you'll need are 2.75", but I personally got the 3" ones to make it a bit easier to get them on
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Old 10-11-2012, 10:54 AM   #20
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Quote:
Originally Posted by rosedaleny806 View Post
ok so i have no worries once i do that method? have you done it too? would this work better??

http://www.ebay.com/itm/2008-2012-SU...850509&vxp=mtr

i want a permanent fix this is annoying i always have to worry about blowin the hose off lol
I would never buy a part from a company called "swag parts" just out of principal.
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Old 10-11-2012, 03:12 PM   #21
rosedaleny806
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ordered my spt gauge from them its a dealer out in texas, but not gonna buy that hose just using an example lol
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Old 10-11-2012, 03:22 PM   #22
Mr Wrex
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Quote:
Originally Posted by rosedaleny806 View Post
ordered my spt gauge from them its a dealer out in texas, but not gonna buy that hose just using an example lol
Why would you order the subaru guage?! Research the reviews about it first and compare it to guages made by Defi.
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Old 10-11-2012, 03:27 PM   #23
rosedaleny806
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plug and play. very easy to install and i got it brad new for $150 shipped as opposed to msrp. defi, yeah its a great gauge and great reviews but its also ver 200$ new
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Old 10-11-2012, 03:33 PM   #24
fenderpicks
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The only TMIC that comes with the throttle hose is the Process West TMIC....

Perrin/ Torque require u to buy the hose separately
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