dump valve makes hissing sound

[jimcupraturbo]

When driving along at 60 to 70 mph I've noticed I can hear like a hissing sound coming from the dump valve sounds like a leak can anyone help

 

[nd-photo.nl]

Which brand+model dump valve?

 

[jimcupraturbo]

It's the forge 008

 

[Sean886]

To say it's coming directly from the dump valve is probably not the right approach. Unless you have super ears!

Cover all the joints in fairy liquid. Get it up to the speed it makes noise. Pull over and look for bubbles.

 

[ibizacupra]

smoke leak test it

 

[Spirit Furtive]

Do you have an open cone on it?

 

[jimcupraturbo]

Yea I do cone filter

 

[Spirit Furtive]

Sounds like it could be that rather than a leak.

I'm willing to bet that if you put the airbox back on it will go away.

 

[nd-photo.nl]

Induction sound? When did you mount the open cone? When did you start noticing this hissing sound?

 

[Mike20vT]

After I put an open cone on my LC I noticed a hissing when pressing the throttle but thought that was it the induction kit sucking in air

 

[nd-photo.nl]

Same here