My name is Lonny Doyle, I own an Aerospace CNC Machine shop. I started working on a new engine design when I was 18, that was 25 years ago. I have built numerous prototype's throughout the years, each one evolving from the last. I am currently working on another prototype and hopefully this will be the one that gets off the dyno without any problems. My last one seized up some seals. This next prototype will have chrome plated surfaces instead of aluminum that the seals slide against. I self fund these prototypes. The last one was more than $20000 and this will definitely be more than that. I wish I had the financial backing that Scuderi has. One thing that is interesting is that my Split Cycle patent predates Scuderi's. As soon as I get my new patent pending number I will upload the website that shows my new design and pictures of the last one that seized.
The problem that Scuderi will not be able to overcome is waiting until the power piston is on its way down before firing. Air and fuel takes some time to complete its burn. In a conventional Otto Cycle the speed of combustion is accelerated by the fact that the air and fuel is being compressed into a smaller area as the flame front spreads. In the Scuderi, the Air and fuel are racing away from the flame front and as the combustion chamber is steadily getting larger. Unburned air and fuel will inherently travel out the exhaust producing very poor performance especially at higher RPM's.
I personally feel that Scuderi knows this but are too far into their design to bail out. It would have been nice if I could have found the funding they have. I fail miserably in that area.