Vacuum lines missing, new owner, no clues

[Cappa]

Ok my friend and i was looking through the talon that i bought a few nights ago and and found two things thats the looked strange. One of them is right off the turbo and i think a vacuum line should be attached to it and the other i have no idea what it is or where it is thopose to go....can any one help me to tell me what the hell this is and where and what they are thopose to be connected too!?!?!?

You must be logged in to view this image or video.

in this top picture, its a piture of my turbo, and there looks like i line should connected there i dont know if a vacuum line or what.

You must be logged in to view this image or video.

This bottom picture i have no idea what it is and the line is cut off furth down the picture in the bottom right hand corner and also where the other arrow is pointing there is no line where there looks like one was cut off before also

 

[Zmann42087]

That "thing" coming off your turbo is the wastegate actuator (WGA). It regulates the boost pressure on your car. Yes, there definitely should be a vacuum hose attached to the WGA. What you are supposed to have attached to that nipple on the WGA is a vacuum hose that runs to the factory Boost Control Solenoid (BCS). The BCS is actually what you have in the second picture. Here is diagram of how the vacuum routing should be on your car.. Visual Reference - 1g BCS

 

[Detective Coating]

The 1g BCS is in the same area as the 2g. You must have vacuum lines hooked up there because turbo cars need the vacuum. What you can do is run a line from the WG to the J-pipe (the black pipe off of your turbo at an angle.) You don't need any plugged into the BCS you can just leave that without any lines connected.

 

[->PrOjEcTGS<-]

That BCS that Zmann42087 is talking about is the item you have circled in the second picture. You need to run a vac line from a boost source (normally the turbo outlet elbow on a stock car) to the WGA there should be a tee coming out of this line and run to the BCS. Out of the other port on the BCS a vac line should run to the intake where the BCS can bleed off pressure and reintroduce it into the intake stream behind the MAS. There should be a port on the MAS's metal housing where this line can be hooked up to.

 

[Cappa]

Ok so i put the vacuum line the runs off of the picture to the wga, now when i get more vacuum lines, where should the other line connect to?

 

[talon_frost]

basicly the 2 pics you shows us are your fix... the second pic you need to hook a vaccume line to the bottom of the solinoid and the other end of the hose to the actuator ,,, that thing on your turbo

 

[->PrOjEcTGS<-]

Hope this helps:

You must be logged in to view this image or video.

The green lines represent your vac lines. The red arrows depict the direction of flow. Therefore when the BCS closes the boost will go down since it's forcing boost pressure to open the WGA. The more air the BCS bleeds off the more boost you get. That's why the BCS restricter removal works well to raise boost.

 

[Cappa]

ok so wait, now im confused. so i just put a vacuum line to the WGA (The picture I posted above) and thats it? cause the diagram confused me a lil bit how it goes from the boost source to WGA....

 

[Defiant]

Thopose?

Have you finished your graham crackers and milk? WTF

 

[Cappa]

no im just confused on the last part.... on how the the vacuum line goes from the boost source to the Waste Gate Actuator. Am i thopose to have a T for that or what how am i thopose to hook that up. or am i just completley not understanding and do i just hook a vacuum line up to the nipple on the WGA

 

[snowborder714]

The line that runs from the BCS to the WGA does have a tee in it. The other nipple on the tee runs to a boost source, usually found on the compressor housing of the turbo. Since your profile says you have an Evo III 16g, you will most likely not have a nipple on the compressor housing. So you can either install one in your j pipe (drill, tap, screw in nipple, JB Weld to ensure no leaks) or you can get a source from the intake manifold.

OR, you can eliminate the BCS and run a vacuum line from your boost source right to the nipple on the WGA.

OR, you can eliminate the BCS and install an MBC.