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Old 06-04-2002, 02:47 PM   #1
Blu_WRX
Scooby Newbie
 
Member#: 18342
Join Date: May 2002
Location: San Ramon, CA
Vehicle:
2002 Impreza WRX
WR Blue Peral

Default Single vs. Dual vent BOV

Will a single vent BOV hurt a WRX engine in anyway? I bought a Turbo XS Type H BOV and it includes a plug for the tube going back to the intake. I'm looking for the Wooshing noise it gives that the stock doesn't but I didn't realise it was a single vent until I bought it. Is it ok to plug up the tube and use the single vent without hurting the engine.
Any info would help
Thanks
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Old 06-05-2002, 01:31 AM   #2
footypaul
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Member#: 9570
Join Date: Aug 2001
Default

Hope you know, many people have reported loss of performance with an aftermarket BOV on a stock application. Sure they may sound cool, but they will affect the way the turbo spools.
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Old 06-05-2002, 12:40 PM   #3
Blu_WRX
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Member#: 18342
Join Date: May 2002
Location: San Ramon, CA
Vehicle:
2002 Impreza WRX
WR Blue Peral

Default

Unfortunatly I heard about that after I bought the damn thing. I bought it three months before I bought the car thinking it would be a great begenning to many mods to come but I didn't do any research before I bought it. Looks like I learned a lesson the hard way. From now on I'll be researching before I buy. Oh well, maybe I can sell it on E-bay or something. Anybody interested in a Turbo-XS Type-H BOV?
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Old 06-06-2002, 01:41 AM   #4
VolkWRX
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Member#: 15885
Join Date: Feb 2002
Location: FL, GA, MO, Eventually KS
Vehicle:
2008 Subaru
Legacy GT Spec B

Default

Try the Private for sale section!!!!
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Old 06-06-2002, 01:53 AM   #5
PaulRex
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Member#: 12454
Join Date: Nov 2001
Chapter/Region: Tri-State
Location: Vermont
Vehicle:
10 Toyota Taco
K8 SV650SF

Default

Hey,
I recently sold an TurboXS-h-rfl version BOV that i had used for about 5,000miles. The reason being that I noticed that between shifts my car would run ruffly for that half a second or less between shifts and would take all the smoothness out of mu shifts. I tried every different washer and spring tension settings and nothing cured the problem. After like two months of driving with this thing i finally sold it to a fellow I-clubber for $70(i know i could have gotten more but I give special I-club discount cause i'm nice )
Anyway when i put back the stock recirculation valve and reset my computer it was like driving a new car.(well not exactly) But..my shifts were back to being smooth again, and now i can actually hear what goes on when i shift instead of WHOOSH! I really enjoy hearing the burble of my engine when i shift now and the sound of the tranny snicking around. Peace! I'm going for a drive!
Paul
My mods for reference(perhaps my car was effected differently by the BOV than a stock rex would):
K&N filter w/mod, GFB pulleys, Samco IC hoses, MBC, 2.5inch TB exhuast with STI muffler.
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Old 06-06-2002, 01:53 AM   #6
PaulRex
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Member#: 12454
Join Date: Nov 2001
Chapter/Region: Tri-State
Location: Vermont
Vehicle:
10 Toyota Taco
K8 SV650SF

Default

Hey,
I recently sold an TurboXS-h-rfl version BOV that i had used for about 5,000miles. The reason being that I noticed that between shifts my car would run ruffly between shifts(or the moment when i shifted after BOV vented) and would take all the smoothness out of my shifts. I tried every different washer and spring tension settings and nothing cured the problem. After like two months of driving with this thing i finally sold it to a fellow I-clubber for $70(i know i could have gotten more but I give special I-club discount cause i'm nice )
Anyway when i put back the stock recirculation valve and reset my computer it was like driving a new car.(well not exactly) But..my shifts were back to being smooth again, and now i can actually hear what goes on when i shift instead of WHOOSH! I really enjoy hearing the burble of my engine when i shift now and the sound of the tranny snicking around. Peace! I'm going for a drive!
Paul
My mods for reference(perhaps my car was effected differently by the BOV than a stock rex would):
K&N filter w/mod, GFB pulleys, Samco IC hoses, MBC, 2.5inch catless TB exhuast with STI muffler.
EDIT: I forgot to mention the reason why i think my car was running differently..Because the BOV was making my car run rich from venting all that air and tricking the computer because it doesn't know the air is not going into engine.
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Old 06-06-2002, 01:50 PM   #7
Blu_WRX
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Member#: 18342
Join Date: May 2002
Location: San Ramon, CA
Vehicle:
2002 Impreza WRX
WR Blue Peral

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well I took off the BOV and put on the old one (yesterday during my lunch break) and your right PaulRex. It really did feel like a new car it shifted smoother and ran just like new.
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Old 06-07-2002, 02:48 AM   #8
PaulRex
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Member#: 12454
Join Date: Nov 2001
Chapter/Region: Tri-State
Location: Vermont
Vehicle:
10 Toyota Taco
K8 SV650SF

Default

Cool, glad its working out for you. Do you have any other mods yet? Have anything in the works??
Whoops i double posted before!
Paul
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Old 06-07-2002, 04:39 PM   #9
Blu_WRX
Scooby Newbie
 
Member#: 18342
Join Date: May 2002
Location: San Ramon, CA
Vehicle:
2002 Impreza WRX
WR Blue Peral

Default

I don't much in modsyet (a turbo timer and some interior dress up) but I'm planning on an uppipe and a TurboXS Stage 2 package comming soon. Right now I'm saving up for rims and tires
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Old 06-08-2002, 10:14 AM   #10
parrej
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Member#: 17078
Join Date: Apr 2002
Location: Waterbury, CT
Vehicle:
2002 WRX Wagon
Blue

Default I too had a Type H-RFL

I had a Type H-RFL as well, but after a while of people asking me what it was and my friends saying that my car had a cold and it sounded like it was sneezing, I had to take it out. I actually got better performance once I took it out. I was also having a problem with my BOV leaking and my rex was stalling a lot. I tried putting in washers, but after a while it would start to stall again. After I put the stock BOV back in it stoped and it was nice and smooth. I sold my BOV on ebay and used the money to buy a kartboy short throw shifter and bushings. I have heard that the 100% atmospheric BOVs tend to cause the engine to run rough because the ECU is calculating all of the air going back into the engine when it really ends up getting released causing the engine to run rich. I have also heard that the 50-50 BOVs tend to work better, but I have never tried one of those.

Thanks,

Jon
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Old 06-08-2002, 04:14 PM   #11
dolbnyc1
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Member#: 11599
Join Date: Oct 2001
Location: Las Vegas, NV
Vehicle:
02 wrx
blue

Default

I had the same problems with my GFB BOV running 50/50
I kept telling people to try it out, and go from whatever
you bought, and put the stock one on.
If you really want the noise, a CAI will make the stock BOV
more noticeable. On my car with the GFB @ 50/50 there really
wasnt any difference in sound. with the CAI
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