Best BOV for a wrx - Page 3 - Subaru WRX Forum
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#31 Old 06-30-2005, 04:28 PM
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damn cosmo is the man
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#32 Old 06-30-2005, 04:36 PM
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HKS is what works for me, its probably the loudest one i have seen on a rex i know i wake up my neighbors when i get home late! !Laugh!
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#33 Old 06-30-2005, 08:15 PM
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damn cosmo is the man
You learn fast, grasshopper...

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#34 Old 06-30-2005, 11:56 PM
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if you can snatch the pebble from my hand....
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#35 Old 07-07-2005, 03:13 PM
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Turbo XS RFL

Havent posted in a while but moneys been real tight (havent made any mods worth bragging about). I'm getting the turbo xs turbo back exhaust with race pipe and perrin up pipe soon and was going to order a bov at the same time. I'm leaning towards the turbo xs rfl only because I like to be obnoxious. Anybody, is this gonna throw off the cel or make my rex run like garbage or am I safe with this bov. Thanks for the input.

(sorry for the confusion on my post, had to edit)
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#36 Old 07-07-2005, 03:25 PM
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You'll be fine.
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#37 Old 07-07-2005, 03:36 PM
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Cool, thanks cosmo.
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#38 Old 07-07-2005, 09:12 PM
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As far as effecting (or affecting I never get them straight) performance, I believe the stock ECU is used to and expects the BOV (or air bypass valve) to shoot a burst of air back into the intake when you shift. If you take that air out, you would end up running rich during shifts. Makes sense to me, but I'm no scientist nor a turbo expert.

So, if you have EM you can deal with the fact you aren't getting the recirculation and make your map accordingly. I also agree, no performance gain, just needed when high boost levels are desired.

256 WHP on Mustang dyno that measures Stockers at 167.
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#39 Old 07-10-2005, 03:38 AM
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Originally Posted by Nose Nuggets
its ###### just me, but i really hate BOV's. its like a wing, completly useless.
have you heard of aerodynamics? because the wing suprisingly helps
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#40 Old 07-10-2005, 02:34 PM
 
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^^^Maybe on F1 or Indy cars. Wings on street cars do almost absolutely nothing.
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#41 Old 07-10-2005, 02:47 PM
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Originally Posted by IBAUCLAPlaya
^^^Maybe on F1 or Indy cars. Wings on street cars do almost absolutely nothing.
Are you joking? Wings, stickers, leds, and colored windshield wipers are good for at least 7 awhp each.
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#42 Old 07-10-2005, 03:41 PM
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i have the WORX adj. recirc. blow off set at 50/50 and it runs just fine. i don't really have anything to compare it to though

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#43 Old 07-10-2005, 05:59 PM
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Quote:
Originally Posted by lobsterhat
As far as effecting (or affecting I never get them straight) performance, I believe the stock ECU is used to and expects the BOV (or air bypass valve) to shoot a burst of air back into the intake when you shift. If you take that air out, you would end up running rich during shifts. Makes sense to me, but I'm no scientist nor a turbo expert.

So, if you have EM you can deal with the fact you aren't getting the recirculation and make your map accordingly. I also agree, no performance gain, just needed when high boost levels are desired.
That's not true. The throttle body is closed when the BOV or bypass valve opens, so that air wouldn't be going into the engine anyways. Plus, when the throttle body is closed, very little fuel is coming out of the injectors.
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#44 Old 07-13-2005, 12:16 AM
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I have the Forge BOV for my rex. it's completely stock, and I love it for the sound. Easy to mount on...and sounds great

->Forge BOV
Comming Soon : qtec cutout
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#45 Old 07-14-2005, 05:44 PM
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Originally Posted by Cosmo
It should hold up to 30 psi. What kind of turbo are you running to make 25 psi? Are you still on the stock block/heads?
BOV for all you that dont know is to release pressure! it make a sweet noise especially TURBO XS, or HKS, and prolongs the life of your turbo! also it stops the back pressure so when u switch gears it prevents the turbo from spinning backwards! (FOR ALL U NOBBIES) and prevents what some call turbo lag! IF U WANT TO BE ALL TECHINCAL! no oviously it dont make u go faster but again makes the turbo last longer and keeps u at a higher boost instead of getting more lag!
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