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Reply With QuoteIsn't the point of the stock BPV not to hold boost? It realeses pressure from the intake manifold. If you wan't more boost get all the supporting mods that go with it and crank that ***** up.Originally Posted by Bruce K 2K2 WRX
This is a discussion on "The BIG BOV thread" (Where all bov question threads get merged) within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; check http://www.scoobymods.com/ for the write up. I think most end up just getting a full recirc. BOV anymore if needed. ...
check http://www.scoobymods.com/ for the write up. I think most end up just getting a full recirc. BOV anymore if needed. The stocker is good, uncrushed, up to and over 20 PSI, tho.
Isn't the point of the stock BPV not to hold boost? It realeses pressure from the intake manifold. If you wan't more boost get all the supporting mods that go with it and crank that ***** up.
All BPVs/BOVs (stock and aftermarket) HOLD the boost until it NEEDS to be released (such as when load is taken off the engine to shift), and in essence, BLOWN OFF...
The mashing of the stock BPV is a little performance trick, but it isn't necessary at all because the stocker does hold upwards of 20+ psi. We will not be seeing that increase in PSI until you do a turbo upgrade. I'm at Stage 2 on my STI and see a max of 19.5psi.
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What do you mean buy chrushing... Generaly any mods like this are bad and actualy hinder the performance.
The point of crushing the BOV is increasing the pressure at which the valve is activated.
My thoughts also. One reason it's not as popular to do on Imprezas as on Mitsubishi early 4G63 motors is that the Mitsu turbos used in the Subarus are smaller than the turbos fitted to Mitsu's own cars. The 14B can generate more flow than the 13 series we use in the WRX, and the stock valve in the WRX is sufficient for the turbo fitted even with increased boost usually.
If you insist on doing it (for no apparent reason) there are a couple options, but keep in mind they are not reversible. One is to do it the conventional way, by removing the valve and using a flat surface vise slowly, the refitting the valve and doing trial and error repeatedly. If you are lucky, rich, or have a large BOV collection plus a block of wood and a hammer, well, I'll let you do the math... But I'd be really careful and not opt for the hammer route.
Or, you can remove the valve and block the small hole on the surface that mounts to the IC -- not the big hole. Weld it or something. Seal it well. Then look at the other hole's routing through the body of the valve, and drill into it (use a 3 mm or so drill) to vent the *opposite* side to atmosphere.
Or, don't do any of this and forget the whole deal. Probably the wisest choice. If you don't follow what I'm saying, don't try it. If you are reluctant to try this, you're right, don't. If there's any doubt, there is no doubt -- don't do this.
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DISCLAIMER: Opinions expressed are the author's alone and are inherently worthless.
just installed it yesterday...what a disppointment : ( doesn't sound like it did on other people's cars..got it professionally installed too : (
better hope you dont start running rich
use the search - take the bov off until you plan on converting to MAP
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for Bugeye owners my BOV thread Service Manuals
yada yada yada
You really had a BOV professionally installed? It takes no more than 5 minutes to do yourself.
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Mods in profile.
5 mins eh?
Lets see a DIY thread. I have the Greddy RS too just sitting here on my desk. (I=teh lazy)
take it off your desk and put it in the recycle bin!!!5 mins eh?
Lets see a DIY thread. I have the Greddy RS too just sitting here on my desk. (I=teh lazy
Its been 1hr 20mins already and this isn't in the Big BOV thread yet?
but it's so shiny. . . .
well i did put it in myself the regular way...but i didn't put the recirculating pipe on....so my buddy at the shop put it in for me5 mins eh?
Lets see a DIY thread. I have the Greddy RS too just sitting here on my desk. (I=teh lazy
it is really shiny!
but it's so shiny. . . .
im planning on buying a blitz exhaust for my 02 wrx. would it be a good investment to buy a blitz bov? does anyone have any experience with the blitz bov? or maybe a different kind? i dont have any experience with this so i dont kno my stuff
help would be nice thnks
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