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01-09-2009, 07:40 PM | #1 |
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Flange Question
So im going with the CX Racing FMIC kit, but i want to retain my stock BPV. Where can i find a flange that can be welded onto piping that will work with the BPV? Do i just worse comes to worse "ghetto engineer" a BPV-> BOV converter, but just weld on the "BOV" side and use the BPV part?
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01-10-2009, 12:06 PM | #2 |
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is the ej20g flange and later wrx flanges the same?
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01-10-2009, 01:32 PM | #3 |
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Ej20Gs don't have a flange. The bypass valve sits in a hose that runs between the turbo outlet pipe and the turbo inlet pipe.
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01-10-2009, 02:39 PM | #4 |
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sorry
so i just take the outlet pipe end and stick it into the piping hole on the piping |
01-11-2009, 10:45 AM | #5 |
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That is a similar situation to the dsm 2g and evo bpv. There are plenty of aftermarket bovs that fit the same way. Just need to know the size of the hose that goes to it. Order a spare flange from one of the bov companies.... they sell them separately in steel or aluminum..... check turboxs for example.
There are many more if you look into it and all vary slightly in size |
01-11-2009, 12:28 PM | #6 |
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oh sorry, i dont want to deal with a bov, im staying with stock BPV.
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01-11-2009, 03:32 PM | #7 |
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I assumed that in my post... as I explained... the "stock" valve is attached exactly the way some aftermarket valves are... ie turboxs and others... hence you can just order one the spare flanges they sell and weld it to your pipe... then just attach your rubber hose with "your" valve on it. Easy as pie...
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01-11-2009, 09:34 PM | #8 |
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Get an Ej205 valve. It's a lot easier to make work.
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01-16-2009, 11:07 AM | #9 |
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what would you say is the psi limit of the stock bpv
im thinking of buying a used greddy type S and recircing it |
01-16-2009, 06:44 PM | #10 |
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Most people say they are reliable up to about 20psi.
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01-17-2009, 03:18 PM | #11 |
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if i go upwards of 20 psi, which would you suggest for being recirced?
and if my turbo is pnped, does that change im looking at prospectively running in the 20-22 psi range on a pnped 16g |
01-17-2009, 04:29 PM | #12 |
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I've had the greddy type-s and it wouldn't hold more than 18psi. The two that I've seen that don't leak and aren't hard to get the adjustment right on are the hks ssqv and the tial bov.
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01-17-2009, 04:38 PM | #13 |
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well do i HAVE to go with a bov, or is the bpv good enough?
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01-17-2009, 04:52 PM | #14 |
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I don't really know how much your stock bpv will hold. They all seem to be slightly different. The bpv from my v4 sti held 21psi but eventually broke the nipple off.
But I consider it as good insurance. You plan of seeing 20-22psi, that's a lot of boost. I'd rather have a bov that can easily function under that pressure than something that's at it's limits. Besides, it would suck to find out your bpv is leaking while you're getting tuned. But, talk to your tuner and ask if it matters if your bov is vta or recirced. |
01-17-2009, 05:08 PM | #15 |
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well i know it needs to be recirced. with that in mind...suggestions?
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01-17-2009, 07:38 PM | #16 |
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Why do you say it needs to be recirc'd... I run a turboxs RFL non recirc and the performance is great plus the sound is absolutely ridiculous between shifts.
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01-17-2009, 07:40 PM | #17 |
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i heard that they make it run like crap though, although i will be tuned on PFc/microtech
what is exactly the problem with the stock bpv i may also just be @ 20 psi, im trying to hit 300 whp, thats it. Last edited by JDMFLCL; 01-17-2009 at 07:52 PM. |
01-18-2009, 03:15 PM | #18 |
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I dont know who would have said such a thing. I personally have it(turboxs rfl) on my car, ej20g, tdo5 16g. I love it. It has a very distinct sound on the subaru motors. I have heard it on other subys and same sound.... very distinct and exotic... performs perfect and my car runs like a champ. Good luck whichever you decide.
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01-19-2009, 12:47 PM | #19 |
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how much did it cost you guys to have a flange welded on
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01-19-2009, 04:31 PM | #20 |
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You should be around 10 to 20 dollars at any good welding shop.... maybe free if you get lucky... just a very small job, most shops will likely do it for free. The flanges can be ordered in aluminum or steel so you have your choice depending on ic pipe material.
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01-19-2009, 11:56 PM | #21 |
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Well, since you're thinking of getting the ebay fmic you should be aware that some shops won't weld on those pipes because it's so thin. But you don't need to weld a flange on for your set-up. Just get the adapter for a v4 or older and it'll work with that fmic. All you have to do is plug the recurc to your induction hose.
If you can't find the right adapter then the Evo 8+ adaptors look very close to the right size. If it's not then just use a brass step down adapter from a plumbing store. |
01-20-2009, 12:29 PM | #22 |
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so pretty much just go
pipe---->hose-->v4 or earler adapter->bov--->recirc kit---->hose---->induction hose. If i go with HKS, i see they make a kit, does it require to be welded with a flange, or does it float free like the oem. is the turboXS the flange adapter? and of the turboXS bov's which of them can be recirced. edit nm: saw they have to be recirced. Last edited by JDMFLCL; 01-20-2009 at 12:48 PM. |
01-20-2009, 01:26 PM | #23 | |
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Quote:
The TXS I consider one of the worst bov's out there. I slapped it on my car for a couple days and it wouldn't work properly. If you had the spring pressure high enough that it would hold boost then it wouldn't open between shifts when it saw low amounts of pressure. So wot it wouldn't work just fine, but putting around it didn't. So that hunk of junk stays on my wife's car. Her car is pretty much stock so it works kinda ok on her car. Btw, there's a few threads on here that talk specifically about the flaws of the TXS bov's if you search. |
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01-20-2009, 02:04 PM | #24 |
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so the hks kit, does it come with everything. mainly worried about v1-v4 compatability.
also do i have to weld the flange or is it suspended. info please or do i use the TXS flange with the hks. essentially so far im buying the hks and the recirc kit, what else do i have to get, and what do i do flangewise. info please |
01-20-2009, 04:04 PM | #25 | |
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Quote:
It might be easier to just buy a hks bov with the evo8 adapter because it'll come pre-mounted to the adapter. If you buy them separate then you'll need a 90degree needlenose plier to attach it. Here's one I found for an S13 that should work. s13 bov If you buy them separately I think the Perrin universal adapter might work. But I'd call them first and see. Here's what the Perrin adapter looks like. Perrin hks universal adapter |
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