I'm probably going to be reamed a new one, but I have a curiosity that is nagging at me. Do any of the aftermarket turbo manifolds/headers clear the actuators on a 6 port? Now since I think of it, would the S4 exhaust driven aux ports work as they are supposed to in a turbo application? Or would the variable timing under boost be a recipe for disaster? I'm looking for good street manners, not a track car.

 

Angel Motorsports has been asking if anybody would want one, I'm building my own for a gt45, in theory you could have awesome off boost torque with them closed, and good on boost flow with them open, that's my thinking anyways

 

exactly... but you would have two complex systems working independently of each other.

 

i have an adaptronic I'll use to control a solenoid, or I'm using the S5 actuators that open with 5 psi, so it'll just be a matter of playing with it on the dyno to see where it is happy. on my Bridge port NA the torque dictated I didn't even need to open them until 5500rpm, anything below that it made no more power but lost torque.