I remember getting a wide band oxygen sensor and tuning the gain in the new ECU (and by tuning I mean eventually realizing turning it all the way up minimizes steady state error). When I worked with the setup, it had no supercharger and was a lab demo for the newly reintroduced engines class. (getting to be almost a decade ago, I should go visit) Did you guys do research with it?

Speaking of engine research, kind of crazy what production engines do these days: http://www2.mazda.com/en/next-generation/technology/ https://www.infinitiusa.com/now/technology/vc-turbo-engine http://www.etagen.com/technology/