After some discussion with advisors at the Engine Research Center at the University of Wisconsin-Madison, Paul, Principal of Blue Specter set about to earn his Ph.D. The stated goal of the research was to investigate, optically, the behavior of the Diesel fuel injection spray. Among the many requirements, the platform used must be representative of a production combustion chamber and the engine must be capable of running under its own power. It took 4-1/2 years to design and build the laboratory in which this feat was accomplished. Below is the resulting engine.