question about the stock BOV on a MKIII Turbo

TehEl1te · 08-23-2009, 05:20 PM

Hey guys, I am relatively new to these cars but I have done a fair amount of research. I found a 90 MKIII Turbo I want to get. I test drove it... it runs like a top, no issues at all, just needs new power steering pump soon which he has so I just need to install that. My question for you guys is, is it bad if the bov kind of chatters? its the stock bov on stock boost but it doesnt have that single hiss release sound, it has like a chattering.

Here is an example at 12 seconds of this video.

http://www.youtube.com/watch?v=_cT2u3upZOs

Is that bad? I was told there are 2 different types of BOVs. Thanks guys!

Oh I am not asking simply because it might sound cool, I just want to know why it does that and if it is bad, how to fix it

thanks guys!

Bill UK · 08-23-2009, 07:46 PM

The stock BOV doesn’t make a hissing or chattering noise, a good direct replacement @ a third of the price is the SAAB Bov. SAAB Blow-Off-Valve

TehEl1te · 08-23-2009, 09:38 PM

I know its not supposed to, but after the full rebuild, it does. *shrugs*

TehEl1te · 08-23-2009, 10:20 PM

Do you think the shop that rebuilt the motor but an aftermarket BOV on it? regardless... is that chatter or sputter that i hear from it harmful?

08-23-2009, 05:20 PM	#1
TehEl1te 3" Exhaust Join Date: Jul 2009 Location: Pittsburgh, PA Posts: 67	question about the stock BOV on a MKIII Turbo Hey guys, I am relatively new to these cars but I have done a fair amount of research. I found a 90 MKIII Turbo I want to get. I test drove it... it runs like a top, no issues at all, just needs new power steering pump soon which he has so I just need to install that. My question for you guys is, is it bad if the bov kind of chatters? its the stock bov on stock boost but it doesnt have that single hiss release sound, it has like a chattering. Here is an example at 12 seconds of this video. http://www.youtube.com/watch?v=_cT2u3upZOs Is that bad? I was told there are 2 different types of BOVs. Thanks guys! Oh I am not asking simply because it might sound cool, I just want to know why it does that and if it is bad, how to fix it thanks guys!

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08-23-2009, 07:46 PM	#2
Bill UK AEM EMS Join Date: Jul 2006 Location: UK Posts: 891	The stock BOV doesn’t make a hissing or chattering noise, a good direct replacement @ a third of the price is the SAAB Bov. SAAB Blow-Off-Valve

08-23-2009, 09:38 PM	#3
TehEl1te 3" Exhaust Join Date: Jul 2009 Location: Pittsburgh, PA Posts: 67	I know its not supposed to, but after the full rebuild, it does. shrugs

08-23-2009, 10:20 PM	#4
TehEl1te 3" Exhaust Join Date: Jul 2009 Location: Pittsburgh, PA Posts: 67	Do you think the shop that rebuilt the motor but an aftermarket BOV on it? regardless... is that chatter or sputter that i hear from it harmful?