I have replaced on of my recircs for a blitz bov. I plan to get another when I can drop on one for a good price. What I have found though is it seems to be very quiet. Also, anything less than half boost i can hear the turbo stalling...

 

Which way do I need to wind the spring?

 

Thanks

anything less than half boost i can hear the turbo stalling

 

What do you mean by this?

 

Jeff TT

Sorry, I mean when I release the throttle whilst boosting anything up to about 5 psi I can hear the turbo chattering.

I assume I am hearing the turbo spinning backwards as there is not enough boost pressure to move the bov spring??

 

Thanks

I assume I am hearing the turbo spinning backwards as there is not enough boost pressure to move the bov spring??

 

Thanks

 

The ballanced boosted air will be venting from the 1 recirc you have fitted...best to fit Bovs as a matching pair

I assume I am hearing the turbo spinning backwards as there is not enough boost pressure to move the bov spring??

 

Thanks

 

Danny I am thinking you not quite understanding the set up,the turbo cannot spin backwards, the noise your hearing the the bov lifting early and loosing boost, the issue is because on a light to half throttle there is an amount of vacuum been produced on the line to the bov diaphragm by virtual of the pressure difference between the two sides out of the throttle butterflys.

 

Trouble is after market bovs are often universal and don`t really in my view suit the zed at all, if I had any recommendation it would be to remove and leave the stock re-circs to do their stuff.

 

 

Jeff TT