My question is about the sound my BOV is making. Under spirited acceleration I hear a ssssshhhhhhh sound then when I let off the accelerator I hear a louder PSSSSHHHHHH sound. Is that normal? I thought you shouldn't hear any sound from the BOV until you let off the gas then it releases the excess gas. I have the adjustment screw all the way in so it should be holding the boost, right??

 

That SSSSHHHHHH is the turbo spooling...or should be...can you make a sound clip? It sounds like everything is fine though..

 

Are you certain the shhhhhh sound isn't the normal sound of the turbo spooling up? The TN kits make a lot of induction noise, which I like.

 

Dammitt MIA...you beat me to it. Brilliant minds think alike!

 

LOL... You gotta be quick on the mouse around here

 

you shouldn't have adjusted that screw AT ALL from how it came in the box.......

if you have it adjusted all the way in, you need to unscrew it a bit! You could cause some major compressor surge with the setting that tight.

 

It's like bidding on a hot item on EBAY in the final minute!!!

 

I guess it could be from the induction noise. It is noticably audible but I really don't have another Z or G to cmpare it to with a similiat set up. My boost gauge is showing that I am holding boost. I guess if it was leaking the needle would drop under acceleration. If you guys are hearing the same thing then I guess it is normal.

 

If you are holding a solid 8-8.5 PSI from 3200-3800 RPMs to redline its not a leak..

 

Just looked at my BOV and noticed that the outer port (closes to logo and drivers quarter panel) is routed to my upper plenum. OK I pretty sure that is correct. BUT there is another port right next to it (closest to engine) that is empty. I looked in the port and there is a small hole. Should that hole be plugged or is it suppose to be like that???

 

No that port is fine. It doesnt have to be plugged. Mines been open for like 20k miles now...

 

OK. Cool! It looked strange being empty.

 

Yeah lol....no worries...