Sounds like a bunch of chipmunks having sex.
I really respect and love Supras, but this has got to be one of the funniest bov sounds.
YouTube - Super nice Supra!
Poor guy had trouble at first.
funny how he couldnt get it to spin the tires untill he started doing donuts. Either his tires were getting really good hook or he didnt really have that much power. Im thinking that he had really good tires.
This is compressor surge. Unmistakable.
YouTube - bmw e30 328i 24v Turbo
Even worse
YouTube - Bmw e30 328i 24v Turbo 2007
The blow off valve is adjusted to vent properly when making a transition from high boost to vacuum spike as you can hear on the dyno. Anything other than that and the valve does not open or does not open enough and the you hear the surge come right out of the compressor inlet.
It's not the bov, it's compressor surge, and it's horrible for turbo's. That turbo is spinning at +100,000 rpm's and the t.body closes and all the pressure trys to spin the urbo backwards. but yes it does sound funny
that is true its the bov tial sounds strange at low boost like that because its meant to let the air out at high psi.tial is a very good bov. they run around 300 and hold good amounts of boost.mine held 40psi just fine with no boost leaks.:rockon:no its not compressor surge
TIAL BOV
one of my favorite of all