Turbo_Rotary

OK, here's the deal. I just got a S5 turbo & manifold to put on my S4 T2. Now the hard line going from the compressor outlet to the wastegate valve actuator, is that seeing boost or vacuum? The reason I ask is because I guess S5's have a duty solenoid valve near the oil fill pipe that S4's don't have, but there is a vacuum line that is supposed to go from that hard line to the duty solenoid valve. Now what can I use to cap that off?

Also, I'm taking off the ACV, EGR, and split air pipe. So the 3 lines coming from the back of the block to the ACV, and the 1 line (as far as I can tell) going to the EGR I can just cap off right? What about the vacuum line from the boost pressure sensor going to the ACV? Can I just tee into the line going from the stock BOV to the little nipple below and to the left of the BAC? Sorry if it seems kinda confusing, I'm just trying to be specific on which parts and lines I'm talking about. Thanks for any help.

Turbo_Rotary

One other question. What size studs are on the turbine housing going to the downpipe? Thanks.

Scott 89t2

remove the metal pipe from the S5 turbo and run a new line from the turbo compression housing to the wastegate. getting rid of that nipple in the midle.


BOV, aftermarket boost gauge, and pressure sensor can be "T"ed below the bac.

Turbo_Rotary

Hey thanks man. I appreciate the help.