Alright, I was reading on the FAQ forum about the air pump removal. I hollowed out my cats, and therefore removed my airpump. Does that mean that my 5th and 6th ports aren't opening now? If so, is there an instruction page so I can remove or wire those suckers open?
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You have a S4, they open with backpressure. I don't know if you have enough backpressure to open them.
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So, should I just get to them and find out?
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if they are moving freely you should have enough backpressure to open them, if they are dirty and binding up then they might not be opening correctly
mike |
What about when I put a straight pipe on it. Then would I need to wire them open?
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how about this, what I am gonna do: put on whatever I'm gonna put on, then see if they work...if it doesn't, take necessary steps at that point...unless someone has specific specs on how much backpressure is needed, and how much backpressure is reduced by certain exhaust components
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you need about 2psi of back pressure to open properly working 6 ports, any of the racing beat systems have enough back pressure to open the ports if they work properly
mike |
Assuming the sleeves rotate freely,
you can put some grease on the actuator rods, take the car for a drive, and see if the grease has been disturbed. If the grease appears to be intact, there is not enough exhaust pressure to move them. hugues - |
or they are stuck
mike |
would it work just as good to see the ports actuating from standing outside the car while someone revs it?
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