Single turbo bov noise when there is no bov.. Is this chattering from the blades?

[Mike B]

Hi all,

I've been quietening the car down over the last 2 years and I'm done with the bov noise, so I've removed the hks bov and blanked it off. Surprisingly I'm getting chatter on lift off. I thought I was hearing things!

 

Is it really chatter from the blades? T67dbb

 

Is there any way around it? A silent bov that will get round the chatter?

[Scott]

The chatter is just the back pressure as the turbo is still generating pressure onto a closed throttle body. As the turbo slows down the gas escapes through the blades stalling it and giving a chatter noise.

 

Best way to get around this is to re-fit the BOV and recirculate it using a recirculation kit. Could make it look very tidy

[Mike B]

Is there a silent valve I can use capable of dealing with a t67? Looking to completely silence it...

Re-route it to the intake?

 

Thanks for the info..

[Scott]

Is there a silent valve I can use capable of dealing with a t67? Looking to completely silence it...

Re-route it to the intake?

 

Thanks for the info..

 

I can't comment on the exact spec etc but I know that the HKS Super Racing BOV can handle just about any situation. Whether or not there is a recirculating attachment or not I don't know.

 

With regards to the SSQV, if that's what you had originally, you can get a recirculating adapter which, I believe, makes it completely silent.... as long as the pressure can be released quickly enough.

 

If you were getting a lot of chatter with your previous BOV then it would suggest that it wasn't up to the task of venting the pressure. However, if it was just a normal BOV whoosh then that would suggest it was up to the task. Next step is simply to get the vented gas back into the intake while not creating a restriction in the process.

[Gaz6002]

The Super Racing BOV can re-circulate so won't make any ghey noises