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1.8t passat bov comp surge???

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Uploaded by on Jan 6, 2008

I need to know if this is comp. surge or fluter PLEASE help!!!

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Uploader Comments (zastava1)

  • hey wuz up i just figured i would let u know that is a turbo surge u cant prevent it just by getting a new bov it may seem quitter but i can listen closely thats a surge carefull u may blow ur rings if the turbo locks ive been working with turbos for the past 4 years ur welcome

  • ya I fixed the problem but I ran it with surge so long that the turbo blew a couple days ago it was pretty bad haha but I got a brand new turbo and everything is great! but thanks for the insite

  • get a new bov

  • dont need one it was just the vacuum hose that pulls the bov open it fell off

  • it sounds like your diverter valve(blow off valv) isnt opening.check the vacuum line that goes to the valve.its probably unplugged.ig not then the diaphram is leeking not allowing vacuum to pull it open.

  • thanksss alot bro thats what it was stupid vacuum line lol again man thanks :)

Top Comments

  • too bad this is bad for the turbo...it sounds so cool.

  • flutter is compressor surge

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All Comments (40)

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  • Flutter for sure and yes get a blow off valve because your pushing pressure the wrong way

  • @XdogXdx91 I have the same Problem . Is it the blow - off or Turbo ?? What can i do ?? Thank's...

  • i dont think its a porblem unless you running more than 10psi of boost

  • fluttering isn't dangerous for the impeller, surge is dangerous and the impeller can be destroyed.

    The same thing, but in very different conditions.

    Closing the butterfly valve cuts the power to the compressor (coming from the turbine), and creates a pressure wave that exits from the compressor side (rotating at not very high speed).

    Surge happens when the compresor arrives to the maximum airflow for a certain speed, it is similar to cavitation.

  • My passat 1.8t does the same sound this happen when o broke my transmission now I have that sound !!!!!

  • @454sskilla nothing, flutter is just another word for compressor surge.

  • This is flutter... and flutter is not compressor surge. Compressor surge is when your spring is too tight on a bov. Your BOV is the stock bypass valve it flutters because you aren't building enough boost to hold the valve open for a long enough period of time to make the traditional steady blow-off. If it was compressor surge it would be happening at full boost and you dont get comp surge unless your bov screw is too tight. ++++DONT POST SHIT UNLESS YOU KNOW WHAT YOU'RE TALKING ABOUT++++

  • goddammmmm today this shit start to my car, passat 1.8t is the same sound, sounds goodddd but is a fuck up to my turbo, can it be the dv?

  • @zastava1 how much did that run you? for the new turbo+install

  • Have you checked that the N249 valve that good? Symptoms seem to not work N249

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