We won't be doing any development of a side port engine for aircraft, there is just no need to.  The availability of housings would be the only reason and there are at least 2 shops working on making new 13B style housings. The mods in the Renesis are done to work in the car and keep emissions down and torque up. The higher redline was done to keep the HP at least the same. The side ports came largely out of Mazda's work with the hydrogen fueled rotary where the wide flammability ratio of H2 really needed the ports closed to prevent backfiring. Your method, supercharging, (either turbo or direct drive) IS the best way to power up the Renesis. With P-porting and housing exhaust we have found the ability to tune for lower RPM and still really up the NA power. That is great for longevity and efficiency. Also the plumbing is simpler for both the intake and exhaust to fit under a cowl. The engine gearbox in the video is off the dyno now to be mounted in an RV-3. All of it under the cowl. Just slightly longer as the rotary is a bit lighter than the Lyc. Not a lot in this still iron sideplated version, but we are looking at Compacted Graphite Iron for sideplates for a almost 50% weight reduction, (over the standard side ported sideplates), and long term reliability.

Bill