the question is that i have a pacesetter header and a 3' inch exhaust stright piped and right now i have the 6ports zip tied open,so i was thinking to make two holes on the header one for each rotor for 6 port activation, cause the thought that i have that with two pick ups tubes for 6pi would open because of the pressure of the exhaust ports.

what do you guys think?
would it open later or earlier?

i know about rpm activation and all that stuff.just an idea

 

You definitely won't have enough backpressure with a 3" exhaust.

 

depending on your model, the s4's need exhaust pressure. the s5's dont. the 3 inch is a lil big for an exhaust.i would say 2.5 inch is a better choice.

 

Take a good look at the Racing Beat Road Race header and you will see why you're an idiot.

 

don't call names on my thread, and i seen the road race header and thats why im thinking of this idea , instead of one have two pick up tubes

 

Why?

 

cause the racing beat is one pick up tube and the diameter of the header tube is not the same of the header that i have now and the exhaust is tolaly different i know backpressure has some affect in this, so that why i said two , cause of the diameter and flow,and i also forgot to metion that rite after the header theres a small reducer adapter that i made to fit this exhaust.which is from header 2.5in to adapter 2.35in give or take

 

Adding a second tube just increases the volume. When volume increases, pressure decreases. Just use one with a nice bend in it.

 

I have a Pacesetter on right now.The Collector has a Small tube welded in between the two pipes where they Meet up on the Collector for the aux ports.It is about a half inch wide or so.It works great on the Little S4 N/A.It gets enough pressure at that location on the header to open the ports ..so to answer your Question..Just ONE tube is needed.

 

^ what exhaust you are running?