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blow off valve

Old Sep 15, 2004 | 04:05 AM
  #11  
ImolaS4's Avatar
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From: United States
Default RE: blow off valve

ORIGINAL: member

everybody starts bitching when they hear the word BOV and i bet half the people that said something dont even know whats going on.
On the contrary.
Jestnomen, norcaltrojan, myself, and several others on this forum speak from experience as well as a comprehensive understanding of "how things work".

I just re-posted an article in the General Audi Forums Chat ("BOV's, DV's and the Audi closed loop turbo system") that I wrote in July, 2004. Check it out.
 
Old Sep 15, 2004 | 05:33 PM
  #12  
David_K's Avatar
Joined: Jul 2004
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From: Austin, TX
Default RE: blow off valve

YOu put alot of thought into your little explanation there, friend; what you failed to realize is every turbo car runs a closed loop system, only semi's run an open loop. That's why at idle the turbo whistles so loud, b/c the BOV is in the open position. At a certain point in the modifications a BOV is required, as in my case, b4 my fuel pump failed me. on my new setup i will run a TurboXS race bypass valve untill compressor surge becomes a problem. But man just let it go, youve already spent hours typing out why BOV are bad. Just tell him how to install it. BTW its the same process as a DV installation just involving tungston welding.
 
Old Sep 15, 2004 | 07:04 PM
  #13  
ImolaS4's Avatar
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From: United States
Default RE: blow off valve

ORIGINAL: David_K

YOu put alot of thought into your little explanation there, friend; what you failed to realize is every turbo car runs a closed loop system, only semi's run an open loop. That's why at idle the turbo whistles so loud, b/c the BOV is in the open position. At a certain point in the modifications a BOV is required, as in my case, b4 my fuel pump failed me. on my new setup i will run a TurboXS race bypass valve untill compressor surge becomes a problem. But man just let it go, youve already spent hours typing out why BOV are bad. Just tell him how to install it. BTW its the same process as a DV installation just involving tungston welding.
Wow! I guess you changed your mind about me, too, huh?


WHAT?
Welding?? Where did you come up with this whole welding thing? (BTW: The other name for wolfram is spelled tungsten.)

First of all, I didn't "fail to realize anything". It's an explanation of Audi turbo systems and why they need to remain in a closed loop.

And there's no need to be condescending David. My typing doesn't take that long! Furthermore, let what go? This topic comes up every other day. We are here to impart our advice, suggestions, and commentary. I would think you would have told him how to install it by now.

Here's the pic of where the DV is located:
 
Old Sep 15, 2004 | 07:18 PM
  #14  
Jestnomen's Avatar
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Default RE: blow off valve

ORIGINAL: David_K

He didnt ask about DV vs. BOV. he asked how to install it. he spent around 200 bones on something he wants; telling him to drop it in his gas tank is a slap in the face to him and to me. (remember I run a BOV).
Why should I help someone who wants to add something to his car that serves no purpose, other than to impress friends or the like. Next i'll be helping someone install windshield washer lights.

"This is a great site. We keep the dialogue friendly and the attitude positive. The info is well received by all and we are here to help anyone with the need. I hope you find it to your liking as well." -Imolas4

"just drop it down your gas tank, might as well hurt your car sooner than later" -justnomen

and the rest of you followed in jestnomens footsteps. Imolas4, this does not apply to you.
No one else followed in my footsteps. I just happened to be the first to express my feelings of BOV's I'm sure ImolaS4 would have said it eventually as well as norcaltrojan and all the others. Almost everyone agrees that a BOV is not appropriate for an Audi engine, yet you continue to make an issue of this.
 
Old Sep 15, 2004 | 07:33 PM
  #15  
ImolaS4's Avatar
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Default RE: blow off valve

Thanks Jestnomen.

"Why should I help someone who wants to add something to his car that serves no purpose, other than to impress friends or the like. Next i'll be helping someone install windshield washer lights...
.... Almost everyone agrees that a BOV is not appropriate for an Audi engine, yet you continue to make an issue of this."


I couldn't have said it better.
 
Old Sep 15, 2004 | 07:43 PM
  #16  
David_K's Avatar
Joined: Jul 2004
Posts: 3,295
From: Austin, TX
Default RE: blow off valve

A BOV has an aluminum flange requiring it to be welded. I came up with it when it had to be welded. Imolas4, I dont understand this whole changed my opinion thing. i have not changed my opinion and i dont dislike anybody for disagreeing with me. It would be boring if everybody agreed on everything and there was never any disagreements. I just thought the responses to a newb's question were out of line thats all.

sorry about the misspelling of tungsten. im a horrible speller. And Jestnomen is right to a degree, a Bov is to intimadate and impress , but for me it served as a safety device. Justnomen, why did you buy your Audi? To impress? And dont you have a 12ver why would you have anything to do with an install

ONe more thing the reason i made an issue about this is b/c you guys insist on bringing up the DV issue. Yes a DV is better for your engine and a BOV initially is harmfull. all i did was tell him how to install it. I didnt tell him he should do it.

BTW i pm him and told him how to do it, but as i said I cant weld aluminum to well.
 
Old Sep 15, 2004 | 07:49 PM
  #17  
ImolaS4's Avatar
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Default RE: blow off valve

No hard feelings toward you David - Peace.

I'm still confused about the welding issue though. AFAIK the BOV's (available for Audi) are made with the proper flanges that just slip into the hoses - no need for any welding. Am I missing something about your description?
 
Old Sep 15, 2004 | 07:56 PM
  #18  
David_K's Avatar
Joined: Jul 2004
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From: Austin, TX
Default RE: blow off valve

Damn that would have been so much easier. I bought a TurboXS BOV that had a Rubber tee with an aluminum flange comin out the top. = || = the two equal signs are rubber and the slip into the hose. the vertical lines are aluminum and has to be welded onto the BOV. And since TIG welding is not my cup o tea i had Protec performance install it.
 
Old Sep 15, 2004 | 08:41 PM
  #19  
ImolaS4's Avatar
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Joined: May 2003
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From: United States
Default RE: blow off valve

I guess I need to see the unit because I'm still confused. Got a pic?
 
Old Sep 15, 2004 | 09:57 PM
  #20  
David_K's Avatar
Joined: Jul 2004
Posts: 3,295
From: Austin, TX
Default RE: blow off valve

um let me see. its really really fuzzy and you cant really see the weld at all. this is 5/03 one month after i got my car. The silver triangular thing is the body of the bov. lower than that youll see the adapter. the blackspot in between the triangular body and the silver adaptor is the weld.

[IMG]local://upfiles/1969/B152DBA5432948E7A0E64202A8BE8A39.jpg[/IMG]

[IMG]local://upfiles/1969/3E66BAADB1CA4BB19A612485482834F2.jpg[/IMG]
 

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