Here is the current engine design plan for my Barracuda (always subject to change): I am using a Lycoming IO-540-B1A5 which is rated at 290 hp. This is an odd version with updraft cooling. It came from an Aero Commander. The stock oil pan for this engine is very different from standard Lycoming pans. It will allow me to make a custom intake manifold that allows intercooliing directly after the fuel injection unit. The fuel injector will face forward in my modified version instead of towards the rear. Directly in front of the fuel injector will be a "stacking" tube. Basically a tube for storing intake air as per my supercharged 1939 Graham cars I have restored. Connected to this tube will be a "excess" pressure valve. Directly in front of this tube will be a supercharger. I am leaning to a Paxton at this time. The air cleaner will be on the front of the supercharger. The supercharger will have an electric clutch and a master switch is already built into the center of the instrument panel area. The goal will be between electronics and the electric clutch to provide a maximum of sea level pressure rounded to 30.00:" for the engine many thousands of feet above sea level. There are some other reasons I favor this set up over a turbo charged system. First, I restore superchargers, second they provide "boost" consistantly (yes, they are parasites), it will be easier to control directly, it is cheaper than a normal aircaft system and last it is far less of a problem with the extreme temperatures of the exhuast and tubo combination. Prop wise I am planning a constant speed unit. Not yet sure which.
