Which BOV to get? and dont give me crap on DV
ORIGINAL: headshok2002
Yeah, and a BOV and a DV arent the same thing... although you might be able to make your BOV recirculate, you wont have a DV release air into the atmosphere, now will you?
So basically, you were saying that if you run NEITHER, you'll damage your turbo... wow, thats informative. I was just about to take off my DV and crimp the hoses until you said that! Everybody here is right... your stock DV died, and you ran to BOV, which was unneccessary, you probably paid more than you needed to as well, since most of us can get by with the 710N.
This post, is about swapping a perfectly fine DV for a BOV soley for an increase is noise... so this guy will have the air being released into the atmosphere, or "blown off"... so he will encounter the problems that have been mentioned, and he should NOT install a BOV for that reason. I think audiboy was the guy who said use a BOV if you're running a custom setup, and HUGE turbo... thats more than 15 lbs of boost, durrr....
Yeah, and a BOV and a DV arent the same thing... although you might be able to make your BOV recirculate, you wont have a DV release air into the atmosphere, now will you?
So basically, you were saying that if you run NEITHER, you'll damage your turbo... wow, thats informative. I was just about to take off my DV and crimp the hoses until you said that! Everybody here is right... your stock DV died, and you ran to BOV, which was unneccessary, you probably paid more than you needed to as well, since most of us can get by with the 710N.
This post, is about swapping a perfectly fine DV for a BOV soley for an increase is noise... so this guy will have the air being released into the atmosphere, or "blown off"... so he will encounter the problems that have been mentioned, and he should NOT install a BOV for that reason. I think audiboy was the guy who said use a BOV if you're running a custom setup, and HUGE turbo... thats more than 15 lbs of boost, durrr....
Damn you guys are **** as hell. All of you must be German! Im half German but not as tempermental as you people.
ORIGINAL: Nightstalker
TomRitt: why will it run richer if the system is not losing any air? Doesn't a DV place the air back into the intake stream?
TomRitt: why will it run richer if the system is not losing any air? Doesn't a DV place the air back into the intake stream?
ORIGINAL: brrman
Well, your BOV is performing the functions of a DV. The DV IS what normally DIVERTS pressure before the turbo. You let off the gas, the diverter valve takes the spooled boost and throws it back to the airbox, saving your turbo from overboost. So yes I agree that something needs to divert the pressure before the turbo. The car comes with something that does that called the Diverter Valve (aka Bypass Valve). If you increase boost, simply upgrade the DV (aftermarket DV's have the ability to upgrade the coil spring in the valve) - you don't need a BOV.
You would do better to sell that BOV off, and buy a $30 710N DV. Make yourself some cash, since you are not using the BOV functionality anyway.
ORIGINAL: Nightstalker
Jesus Christ I agree with everything you say man but what you guys dont want to agree with is that you need somthing to release pressure before the turbo. My BOV releases that pressure and shoves it back in the intake stream before the MAF. I don't know of any car that responds well to a vented BOV especially if their is a MAF sensor.
TomRitt: why will it run richer if the system is not losing any air? Doesn't a DV place the air back into the intake stream?
Jesus Christ I agree with everything you say man but what you guys dont want to agree with is that you need somthing to release pressure before the turbo. My BOV releases that pressure and shoves it back in the intake stream before the MAF. I don't know of any car that responds well to a vented BOV especially if their is a MAF sensor.
TomRitt: why will it run richer if the system is not losing any air? Doesn't a DV place the air back into the intake stream?
You would do better to sell that BOV off, and buy a $30 710N DV. Make yourself some cash, since you are not using the BOV functionality anyway.
no it isn't... lets go back to your original post...
Even though what you said is mainly correct for some cars - you gave extremely misleading information here than is anything but good for Audis. You are telling this kid to buy a BOV and then recirculate it - that will do nothing except act exactly like the DV that already comes with his car. It does nothing to answer his question - which was how to get the PSSST noise. Everything in your above post is misleading in some way or totally false in regards to Audis.
You might just wanna pony up and admit you learned somthing about Audis in thread.
anyway I'm done with this thread... some people refuse to admit lack of knowledge on anything. Me being a MOD has nothing to do with what I know to be fact. My informed opinion comes from stripping down a 1.8t engine and tuning/rebuilding it back up.
I know Im new but you shouldn't fry this kid just because he wants a BOV. BOV's help to preserve the life of your TURBO by keeping trapped air from spinning your compressor in the opposite direction. Its a good idea to upgrade to a BOV especially if you intend turning up the boost. I would definitely recirculate it though because you will probably backfire and idle bad when you first come off the throttle at a light. If I didnt have a BOV on my car boosting 15psi I would be going though a turbo at least every 3 months. Besides if you worry about the idling problem and running rich then you can just get a piggy back fuel controller with deceleration settings.
You might just wanna pony up and admit you learned somthing about Audis in thread.
anyway I'm done with this thread... some people refuse to admit lack of knowledge on anything. Me being a MOD has nothing to do with what I know to be fact. My informed opinion comes from stripping down a 1.8t engine and tuning/rebuilding it back up.
Here is my original statement: What is wrong with it? i knew this kid was going to upgrade because of sound so I told him to recirculate it. I know a DV does the same thing, diverts air to the airbox, so does my BOV, its just louder. So I was telling him if he wants to retain the driveabiltiy but increase the sound then get a BOV and use the recirculating kit. Agreed you can upgrade the DV with a stiffer spring but this kid wants more SOUND!! So if he wants more sound and wants to go with more boost then a BOV with the recirculating kit is a good idea! I have to have a DV or a BOV on my car but they really dont make a DV for my setup. Everyone does a BOV with the recirculation kit. Everything I said in this statement was true in the context of what this kid wanted.
ORIGINAL: Nightstalker
I know Im new but you shouldn't fry this kid just because he wants a BOV. BOV's help to preserve the life of your TURBO by keeping trapped air from spinning your compressor in the opposite direction. Its a good idea to upgrade to a BOV especially if you intend turning up the boost. I would definitely recirculate it though because you will probably backfire and idle bad when you first come off the throttle at a light. If I didnt have a BOV on my car boosting 15psi I would be going though a turbo at least every 3 months. Besides if you worry about the idling problem and running rich then you can just get a piggy back fuel controller with deceleration settings.
I know Im new but you shouldn't fry this kid just because he wants a BOV. BOV's help to preserve the life of your TURBO by keeping trapped air from spinning your compressor in the opposite direction. Its a good idea to upgrade to a BOV especially if you intend turning up the boost. I would definitely recirculate it though because you will probably backfire and idle bad when you first come off the throttle at a light. If I didnt have a BOV on my car boosting 15psi I would be going though a turbo at least every 3 months. Besides if you worry about the idling problem and running rich then you can just get a piggy back fuel controller with deceleration settings.
We were just confused as to why you mentioned the fact that running neither DV or BOV would result in damaging your turbo... I mean, talk about stating the obvious... you dont need to have been working on turbo'd cars "since before you had pubes on your *****" to know that stuff... you were insulting our intelligence -- i think we woulda needed to dumb ourselves up a bit to grasp why you were doing what you were doing.
nightstalker, please go do some research on audis before you come onto the forum acting like you know what you're talking about....read about audi's closed-loop turbo systems, as well as BOVs vs. DVs...then you can come back and argue....
EDIT: i finally finished reading this INCREDIBLY long thread...and nightstalker, you changed arguments about 3 times here....
EDIT: i finally finished reading this INCREDIBLY long thread...and nightstalker, you changed arguments about 3 times here....
ORIGINAL: headshok2002
We were just confused as to why you mentioned the fact that running neither DV or BOV would result in damaging your turbo... I mean, talk about stating the obvious... you dont need to have been working on turbo'd cars "since before you had pubes on your *****" to know that stuff... you were insulting our intelligence -- i think we woulda needed to dumb ourselves up a bit to grasp why you were doing what you were doing.
We were just confused as to why you mentioned the fact that running neither DV or BOV would result in damaging your turbo... I mean, talk about stating the obvious... you dont need to have been working on turbo'd cars "since before you had pubes on your *****" to know that stuff... you were insulting our intelligence -- i think we woulda needed to dumb ourselves up a bit to grasp why you were doing what you were doing.
ORIGINAL: bentframe
nightstalker, please go do some research on audis before you come onto the forum acting like you know what you're talking about....read about audi's closed-loop turbo systems, as well as BOVs vs. DVs...then you can come back and argue....
nightstalker, please go do some research on audis before you come onto the forum acting like you know what you're talking about....read about audi's closed-loop turbo systems, as well as BOVs vs. DVs...then you can come back and argue....
You never needed to start back at square one... and how much noise do you think he'll get out of a BOV recirculating, when he's running like 6 lbs of boost... lol. Buying a BOV with the intent to recirculate, is buying more than you need. I dont know if anybody besides you would disagree.


