BOV Question
07-30-2007, 12:09 PM
#51
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Location: lemont, Illinois
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there wont be to much noticable difference, a little less turbo lag between shifts a cool noise and no more compressor surge, its more safety than performance. get another crappy video clip up mike i wanna hear the cheapo BOV. lol
07-30-2007, 12:25 PM
#52
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Location: Concord, NC
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Originally Posted by duowing
Man that's not a bad idea, I might have to pick myself up a blow off valve, but you say that there's definitely a difference when driving around when the boost comes on and what not?
07-30-2007, 12:26 PM
#53
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Originally Posted by snwbrderphat540
there wont be to much noticable difference, a little less turbo lag between shifts a cool noise and no more compressor surge, its more safety than performance. get another crappy video clip up mike i wanna hear the cheapo BOV. lol
07-30-2007, 02:10 PM
#58
Über User
Join Date: Sep 2005
Location: lemont, Illinois
Posts: 9,532
tis quiet. i dot need a BOV so dude you said it was like 20 bucks? i got 20 bucks to waste for now send me teh link where you snagged yours from. also, why they hell would you put ppeanut butter in your ears, its much better on your nuts....
07-30-2007, 02:32 PM
#59
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Originally Posted by snwbrderphat540
tis quiet. i dot need a BOV so dude you said it was like 20 bucks? i got 20 bucks to waste for now send me teh link where you snagged yours from. also, why they hell would you put ppeanut butter in your ears, its much better on your nuts....
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Dude.....
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This is the guys store on ebay and the second link is the one I got but it looks like he is out of stock. Umm no, he has one on page 3.
http://stores.ebay.com/Wyntonm_W0QQc...QQftidZ2QQtZkm
http://cgi.ebay.com/ebaymotors/ws/eB...140579373&rd=1
Last edited by thxone; 07-30-2007 at 02:40 PM.
07-30-2007, 05:54 PM
#62
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you guys are making my brain hurt...that "red line" is going to the air regulator plumbing just like stock only now it is on the T. If you take away the BOV it would be hooked back to the fitting on the J-pipe...Hell I don't even know what that air regulator does on that part of the hose...there is a MAJOR vacuum leak if it is left open though. Anyway here i drew a pic for some odd reason.
07-30-2007, 06:43 PM
#68
The Cake Is A Lie!
Join Date: May 2003
Location: WA
Posts: 5,690
Originally Posted by snwbrderphat540
ooo ooo i know i know... one time he admited to a low level homosexuality. i swear i seen it.
08-01-2007, 02:09 AM
#70
NisTuner
Join Date: Sep 2005
Location: Cleveland, Ohio
Posts: 2,800
I had a thought, although it is late, but I was wondering. What if you used the EGR kind of as the blow off valve? I mean would this, or could this even work. Since there's the threaded part that comes out of the underside of the intake, well since you don't have the EGR tube, what if you did what thxone did, but instead ran the hose off the J-pipe over to the bottom of that tube that leads to the EGR. It would be like a recirculating BOV. Once you'd let off the throttle the vacuum would open it and let the air right into the intake instead of going back through the J-pipe and having a negative effect on the turbo. The only problem I could see would be it would probably be open a lot more than a BOV would, but since it would be circulating it, would it make any difference if air bypassed the Throttle Body anyway?
08-01-2007, 07:44 AM
#71
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Originally Posted by duowing
I had a thought, although it is late, but I was wondering. What if you used the EGR kind of as the blow off valve? I mean would this, or could this even work. Since there's the threaded part that comes out of the underside of the intake, well since you don't have the EGR tube, what if you did what thxone did, but instead ran the hose off the J-pipe over to the bottom of that tube that leads to the EGR. It would be like a recirculating BOV. Once you'd let off the throttle the vacuum would open it and let the air right into the intake instead of going back through the J-pipe and having a negative effect on the turbo. The only problem I could see would be it would probably be open a lot more than a BOV would, but since it would be circulating it, would it make any difference if air bypassed the Throttle Body anyway?
.............
08-01-2007, 10:46 AM
#72
The Evil Twin
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Duowing, I don't think you understand how and why a BOV is used.
It must be on the intake runner. The pipe between the turbo and throttle body. Not on the intake manifold.
Also, the factory Bypass Valve on intake runner #4 acts in a simular manner to what you just described. It bypasses air to the intake when you let off the throttle. Not as quick of a release so the turbo gets a bit more surge and also it lets air into your engine so your idle holds very high for a few seconds if you're not activly shifting.
I removed and blocked off the factory bypass valve when I installed the BOV.
Using a real BOV is the best idea.
It must be on the intake runner. The pipe between the turbo and throttle body. Not on the intake manifold.
Also, the factory Bypass Valve on intake runner #4 acts in a simular manner to what you just described. It bypasses air to the intake when you let off the throttle. Not as quick of a release so the turbo gets a bit more surge and also it lets air into your engine so your idle holds very high for a few seconds if you're not activly shifting.
I removed and blocked off the factory bypass valve when I installed the BOV.
Using a real BOV is the best idea.
08-01-2007, 12:09 PM
#73
NisTuner
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Location: Cleveland, Ohio
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Alright I think I get what you're saying. Like I said, it was late, and I just thought of the idea. Kind of one of those crazy thoughts. Basically all I was thinking it would be like the same way that thxone had his BOV setup, only instead of venting it to the atmosphere it would run it over to the EGR, and let it into the intake bypassing the TB.
I'm not sure, but I think I was thinking a recirculating would put the excess air into the TB, where now I'm thinking a recirculating BOV probably puts the air back in behind the Turbo.
I'm not sure, but I think I was thinking a recirculating would put the excess air into the TB, where now I'm thinking a recirculating BOV probably puts the air back in behind the Turbo.
08-01-2007, 02:18 PM
#75
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Location: Cleveland, Ohio
Posts: 2,800
Yeah, you're right. For some reason like I said I was thinking when you used a recirculating BOV that it was just putting the excess air into the intake and just bypassing the throttle chamber, but It would make sense to just put the air back in so it would help keep the turbo spooling more as well.
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