Ok im still a little confuzed here, I know that 2 of the 6 ports arnt opening on my se because the little 1/4 inch pipe that senses back pressure has been removed from the exhaust stream by the previous owner.... however I dont understand how they work, how do 2 more ports open up when they get hit with backpressure? Will I feel a difference when I get the hooked up?

Also does anyone have a tps for an 84 se layin around that I could take off your hands?

 

If you do a search, you'll come up with a lot of information about '6'-ports and their method of actuation.

In brief, there is 3-5psi of backpressure when the engine is under load. The 1/4" pipe that runs back up from Cat#3 provides this backpressure and runs the actuators located on the lower intake manifold. These actuators turn rods that move sleeves inside the end housings which open up the two additional '6'-ports under heavy engine load, allowing for additional air to get into the engine.

The '6'-ports are the variable valve timing of their day for the rotary engine (which doesn't have any valves, obviously), and make a huge difference in providing both low-end torque, and also high rpm power. If your '6'-ports aren't working because you don't have any back pressure - hook them up! You'll see a noticable difference in high end power because your ports will be closed by default if the actuators aren't able to move.

This system is based on air column velocity through the Dynamic Chamber and the intake plenums; at low rpm, an higher air stack velocity is better for torque, whereas at higher rpm, you need more air at the same velocity to generate good top end power.

Your search can reveal more about how these work and how to keep them running well. Post back if you can't find anything...