turbo/BOV noob
Registered User
iTrader: (12)
Joined: Nov 2002
Posts: 18,369
From: Reno, NV
Car Info: 1993/2000/2001 GF4 mostly red
Recirculating bypass valves work fine, but they don't make any noise. You only need one if you have a large enough turbo to run 18-20 pounds of boost.
Registered User
Joined: Mar 2005
Posts: 41
Not to offend anyone, but, before the BOV "mod" is done, why don't some of us go back to school to retake english? Hahahah j/k. Just leave it stock! If you don't know what you're doing and don't completely understand how these things work, then leave it stock! BOV seems kind of ricer to me. May as well get a vroombox. "Turn your Dodge Caravan into a '70's Muscled car!" YUCK.
VIP Member
iTrader: (1)
Joined: May 2003
Posts: 2,445
From: GST Motorsports - Rally Division
Car Info: dangerous with a wrench
Originally Posted by RU-X
sorry to hack this topic... but would the stock bov/bpv make a pshhhh sound if i was to unhook the recerclating hose?
Registered User
iTrader: (1)
Joined: Jul 2003
Posts: 748
From: chico for now
Car Info: lowered blk04 with no motor
Originally Posted by projectwhiterex
can someone please demonstrate how its done? through some pics or some step by step instructions??? thank you guys
for what to unplug the recerclating hose? dont do it.
blitz dd bov works cool. iv had it for awhile no problems. just clean it every once in awhile
Guest
Posts: n/a
So i got bored one day at home and wanted to know if i could get the "Whoosh" sound, cause im cheap, ghetto, and curious like that. Disconnect the BOV take a phillips head screw driver and unscrew the downward angling pipe on the BOV. Then just plug the recirc hose with something. NOW, that being said, i am also a douchebag and it is a terrible idea. When i did it my car had problems with stalling at idle. How cool can you look when you are restarting you're car at a light. Its not cool. Save yourself some work and listen to me. The stock BOV was never created with atmospheric venting in mind, therefore is not ment to be used that way. Trial and error is a wonderful thing, so im just trying to save you about 15 to 20 minutes.
VIP Member
Joined: Apr 2003
Posts: 846
From: Orange County, CA
Car Info: 08 WRX - 401whp/408wtq
Originally Posted by PImprezza
so whick BOV's dont waste gas and give a nice sound? the worx valve i believe recirculates air back in, and still has a nice sound i believe.
-An atmospheric BOV will vent the air into the atmosphere, thats the "cool" sound you hear...
-Stock BOV, simply recirculates the air, therefore you hear almost nothing
The reason an atmospheric BOV gives your car a moment of rich running is due to the ECU thinking that the air is still being recirculated (WHILE CHANGING GEARS), therefore it throws in the usual amount of fuel, but since youre getting rid of the air, its not there... and your A/F ratio is running rich... make sense?
Also, if you vent atmospheric, YES your turbo will have to spool its way to what you just dumped... Is it working harder? Eh... not really... we're talking a fraction of a second...
Now about BOVs helping the longevity of your turbo... Sure, it can be true... because if the excess air causes your turbine blades to spin backwards, you can eventually damage the turbo. BUT, given the stock BOV and the stock boost levels, youre not going to ever have to worry about that... So functionality wise, the stock valve does a wonderful job or it wouldnt be OEM equipment
Next... The Worx Tuning Dual Stage, WONDERFUL product if you MUST have the sound... there are two holes in the unit, and when you are running low boost (under 3k rpm) and you shift... the piston(of the bov) only travels far enough to reveal the first hole which recirculates the air, as a plumb back unit... Now, lets say youve got a girl in the car, and you think the pshhh sound will make her wet (i hope you have plastic seat covers...) You simply boost higher... shift around 4-5k, and you get a solid KSSHHHH from this unit... Because this time there is enough pressure to cause the piston(of the bov) to travel far enough to reveal BOTH holes, so you get a little plumb back, and anything excessive is vented to atmosphere... and youve got a creamy girl sitting next to you... make sense?
Have fun with it, as the WORX idealistically will not cause your car to run rich, and its very adjustable to your preference... you wont have any idling issues or anything... I believe GFB makes a 50/50 also, but Ive heard of some people getting leaks with them... My recommendation is the WORX, but any 50/50 is better than a full atmospheric for your setup...
Happy Driving!
Vimik
VIP Member
Joined: Nov 2003
Posts: 1,684
From: Are you too one of the few still living the past? Well I can change that! With a simple wicket. Yes, my friend, a wicket. PM for details.
Car Info: No car right now....sob.
There is a way to make your stock BOV sound a little lounder...remove the intake sliencer.
VIP Member
Joined: Apr 2003
Posts: 846
From: Orange County, CA
Car Info: 08 WRX - 401whp/408wtq
Originally Posted by PyroManiac
There is a way to make your stock BOV sound a little lounder...remove the intake sliencer.
Vimik
Registered User
Joined: Jun 2005
Posts: 42
From: SoCAL
Car Info: 06 Scion tC / 07 DGM leg 2.5i
Originally Posted by Boost Addict
... Now, lets say youve got a girl in the car, and you think the pshhh sound will make her wet (i hope you have plastic seat covers...) You simply boost higher... shift around 4-5k, and you get a solid KSSHHHH from this unit... Because this time there is enough pressure to cause the piston(of the bov) to travel far enough to reveal BOTH holes, so you get a little plumb back, and anything excessive is vented to atmosphere... and youve got a creamy girl sitting next to you... make sense?
