The original plans were for a straight forward pulse jet and the engine displayed on the bike is this. The preferred design is in fact a hybrid as it demonstrates ram jet characteristics!correct me if I'm wrong, but this is a PULSE jet, not a regular jet...big difference!!
Unfortunately at this stage the CAD's are the best i can do! Patience my friend you'll be singeing your eyebrows soon enough!I still wanna see something that's not a jar