I keep hearing how the Renesis has exhaust port issues and we cannot reach the power of the 3rd gen rotaries.

A question:
Why not use Renesis side housings and rotors, with 3rd gen rotor housings and make exhaust and intake manifolds?

A peripheral + side port motor.

Now, tell me why it can't be done; so that we can make it happen one day.

Tell me that would not flow good.

 

the whole point of the side ports was to prevent the apex seal problems
by doing both kinda defeats the purpose and you might as well as go only PP