My turbo? Or my motor?
#1
My turbo? Or my motor?
Hey guys I'm new here. I have an issue (or so I think) that may be to do with either my turbo or my motor.
I have a 98 a4 1.8t, I recently installed a cone air filter for performance, and of course for the sound of my dv to be louder. However even though I can here my dv now after letting off at 4000 rpms (a sputtering release, turbo surge I'm sure) there is also a tzzzz sound that I hear right after. I can't tell what it is but I have taken a video and I am HOPING someone can help me.
Now I apologize if this issue has already been addressed, and if that's the case modz feel free to direct me in the right direction and cancel this thread.
Anywho here is the link to the YouTube vid, I thank you all in advance.
I have a 98 a4 1.8t, I recently installed a cone air filter for performance, and of course for the sound of my dv to be louder. However even though I can here my dv now after letting off at 4000 rpms (a sputtering release, turbo surge I'm sure) there is also a tzzzz sound that I hear right after. I can't tell what it is but I have taken a video and I am HOPING someone can help me.
Now I apologize if this issue has already been addressed, and if that's the case modz feel free to direct me in the right direction and cancel this thread.
Anywho here is the link to the YouTube vid, I thank you all in advance.
#3
You know that's what I thought too, but when you listen to like the rhythm closely it's sound #1 like its coming from cat and #2 that is might be the back spinning of the turbine?
Reason I think that is because when the dv blows off its flutters (turbo surge) and literally after the blow off you hear the tzzzzzz
Reason I think that is because when the dv blows off its flutters (turbo surge) and literally after the blow off you hear the tzzzzzz
#7
i dont hear turbo surge this is what compressor surge sounds like.
compressor surge - YouTube
yours sounds like this
BMW 335i Wastegate Rattle - YouTube
compressor surge - YouTube
yours sounds like this
BMW 335i Wastegate Rattle - YouTube
Although in all of this I forgot to mention, Out of every Audi that I've heard on YouTube with a cone air filter you can hear the diverter valve you can hear the blow off when they are taking video at the engine bay when manually revving the motor... But mine you can't, rather tzzzz
Say it is compressor, what the diff in compressor vs turbo, what's the worse that can happen, can't imagine it's an easy fix
#8
Hmmm slightly confused. The videos have the cho cho cho sound. But I don't hear the tzzzz sound.
Although in all of this I forgot to mention, Out of every Audi that I've heard on YouTube with a cone air filter you can hear the diverter valve you can hear the blow off when they are taking video at the engine bay when manually revving the motor... But mine you can't, rather tzzzz
Say it is compressor, what the diff in compressor vs turbo, what's the worse that can happen, can't imagine it's an easy fix
Although in all of this I forgot to mention, Out of every Audi that I've heard on YouTube with a cone air filter you can hear the diverter valve you can hear the blow off when they are taking video at the engine bay when manually revving the motor... But mine you can't, rather tzzzz
Say it is compressor, what the diff in compressor vs turbo, what's the worse that can happen, can't imagine it's an easy fix
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