20g turbo loud hissing sound

[Iluvboost189]

So after 15psi the turbo starts sounding like a suburu any idea what this could be?

Td05 20g turbo

 

[curt-s]

uh
have a video? have you checked boost leaks? what have you checked?
what does "sounding like a suburu" and "hissing" have in common? I'm lost.

 

[Iluvboost189]

I will post a video shortly here

 

[jdxnc]

Boost leak or bent compressor wheel usually causes a hissing noise.

 

[Pushed]

What boost are you running? you said after 15psi, so im going to assume youre running more boost than 15psi. which in this case could either just be the sound of the wastegate opening/being open or if its shuttering then its the Boost Controller (if its electronic)

 

[Iluvboost189]

Im running about 20 to 21 psi
The wastegate im using is the mamba turbo one

 

[Iluvboost189]

And a vibrant manual boost controller

 

[Pushed]

So yes you're just hearing the exhaust flowing through the wastegate, nothing to worry about

 

[Iluvboost189]

So yes you're just hearing the exhaust flowing through the wastegate, nothing to worry about

I hope thats the casee it never used to sound like that before