i was wondering where the stock blow off valve was located in the turbo twos

 

It's between the turbo and the TMIC...on the S5s it is mounted to a small plastic pipe...you can't miss it as there are only about 6" between the turbo's outlet and the TMIC's inlet...

 

Here's an image....

 

Your car will not run with the bov hooked up like that. It has to be plugged into the TID otherwise the car will not hold an idle, even if you plug the hole in the TID. Yours doesn't look plugged.



But anyway, It is right after the turbo compressor outlet. there is a piece (aluminum on S4s, and Plastic on S5s) right before the elbow going into the IC inlet. This piece has 2 lines comming from it, one to the BAC, and the other going to the bypass valve (BOV). The bypass valve is then plugged into a hole in the TID (turbo inlet duct). Hope this helps.

 

Yea, some people believe the BOV being turned around makes a rough idle, I drove my car for about 2 weeks with the BOV like that w/ a plugged hole in the TID and it ran fine...besides the one rotor issue,lol.

 

I've done it to my car, and the car wouldn't hold an idle, if you kept your foot into it it would stay running. I also had a friend (sidewinderx7) try on his S5 and it did the same thing.

 

the stock bov doesnt close until it sees about 1psi of booost, so is a vacuum leak until then if you have it vented



mike