I know I've done searches before and in one place only they stated when you disconnect the twin scroll actuator arm the flapper will automaticly go to the open or closed posission however I cannot for the life of me find that thread. Do you guys know what posission it automaticly goes to??? Thanks.

 

anybody????? I know it's saturday night and all but someone out there has to be sober

 

anyone

 

oh I know, they only made one s4 tII and I have it so no one else knows what the twin scroll is.

 

you are correct sir!

 

The actuator has a spring in it that holds the flap open. When you apply manifold vacuum to the actuator it pulls the flap closed. If you disconnect the arm from the flap, the flap will be swinging loose in the manifold and will almost certainly be pushed closed by the exhaust gases. If you're not going to have the twin-scroll system functional (and in mildly modded engines you should), either remove the flap from the manifold, wire the flap open, or (easiest) leave the actuator in place.

 

thanks nz I knew you would know. so if I'm on the side of the engine looking at turbo and the flapper is out toward the fender wall it is open but if I push it back toward the engine it is closed?? Thanks.

Oh and cloed.....very funny

 

When the whole shebang is connected up in stock configuration, the actuator rod is sucked fwd, towards the actuator canister. When you reach approx 2800rpm the vacuum in the canister is released and the spring pushes the rod aft....as in towards the rear of the car.

So the arm being held in the aft position means the passage inside is OPEN.

 

thank you hailers!!!!!! You are the man!