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BOV with recirculation and PSSSTH sound

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Old Nov 29, 2008 | 08:56 AM
  #1  
speedys4's Avatar
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Default BOV with recirculation and PSSSTH sound

Hello...i know, that you wrote "NO MORE BOV THREADS" But I think that this BOVS works good.

It is made of Czech republic...

one side is back recirculation and second side is open (in low pressure is everything as OEM BOSCH and at the max pressure ->PSSSSTH

what do you think about it?
 
Old Nov 29, 2008 | 09:14 AM
  #2  
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theres a few like this, sometimes called "hybrid" valves. Theyre better than a BOV for the car, but not as good as as a diverter valve.

HKS SSQV is another one like it, i think Forge makes one too called the "splitter"

For what its worth it can still cause EGT, spark plug, and O2 sensor failures as well as clogging catalytic converters. They DO make you run rich when you shift.
 

Last edited by SourDieselS4; Nov 29, 2008 at 06:00 PM.
Old Nov 29, 2008 | 10:17 AM
  #3  
speedys4's Avatar
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OK, I dont know this.

I had it fitted next week...
 
Old Nov 29, 2008 | 01:49 PM
  #4  
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I did the darintake mod, and i can hear the DVs well, in fact they are pretty loud and kinda sound like BOV on a supra...not so much just a psssht sound
 
Old Nov 29, 2008 | 05:59 PM
  #5  
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That means the diaphrams in your stock DV's are probably torn and you have a boost leak. Replace those soon! Stock DV's usually fail when you chip the car, the audi TT225 valves with the part number "710N" at the end are a common OE replacement. Otherwise APR R1, Forge valves, pretty much any rebuildable DV is good.
 

Last edited by SourDieselS4; Nov 29, 2008 at 06:02 PM.
Old Dec 1, 2008 | 01:07 PM
  #6  
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I just had the car in the shop less than 5000 ago and they said they were good then, but before that i had major vacuum leaks, bad egt, and bad o2 and it was a lot louder then. But maybe now that the car is boosting again its been torn. She is going back in for 96,000 check up so ill have it looked over then
 
Old Dec 1, 2008 | 01:54 PM
  #7  
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Mine were silent when i got them, after about a year when i shift especially at peak boost in 2nd gear i got the same sound your describing. I replaced them with Samco DV's and theyre quiet again
 
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