Since engine cylinder pressure analysis & control/optimization is where the forefront of engine R&D is right now, I imagine both the senors and software are pretty pricey for the average Racer ... we'll see as I'm currently in the process now of finding detailed spec.'s and just how Pricey.
Superflo has their unit as well as I have looked at this company: http://www.tfxengine.com/index.html After you have the opportunity to study more closely, I would appreciate if you share what you find out.
Thanks!