We had two Long EZ's in the past...we used them for a inexpensive platform to test a new autonomous RPV control system at Teledyne Ryan Aeronautical back in the very early ninties. At the close of the program, the aircraft were stripped and scrapped and we donated the engines to a university for use some diesel engine developement studies...I don't remember the university now.........hmmmmmmmm
I never did think that a 4 cylinder Continental would make a very good diesel......