5th & 6th ports question?
 

hi i have no idea about rotary engine, but i have been reading about 5th & 6th ports and it seem that you need a air pump on the s5 engine for the 5th & 6th ports to work.
i just bought a 1990 fc recently and i notice the air pump is taking out of the car. so should i go buy a air pump and but it back on the car to get more power ?