However, it isn’t always clear how to connect to some strange motor with no markings or schematics. [Corvetteguy50] has a video showing his trick for working out the connections easily ...
The U-engine would not be seen again until 1927, when Fiat hatched a plan for the strange motor. In 1927, the Italian carmaker produced a U-engine for its 806 race car destined for Grand Prix racing.