I'm definately not an engine expert, but this is my understanding. I also believe that
the timing of the engine running in reverse with the housing rotated is not exactly the same
as when its running forward with the housing upright, but its close enough that it runs OK.
Bob
I tend to agree with you, Bob....although I have not checked it out myself. All it would take
is someone with a degree wheel to see how the "90 degree is OK theory" would pan out. We
used to cut away rotary valves back in the old days at the motorcycle shop to enhance the
performance of the engines, but we never ran the engines backwards....
Unless the procedure would result in the engine running 100% as well as it did forward....I
cannot see were moving the front housing would be beneficial....unless the prop choice for
an engine excluded any and all available pusher props on the market today.
FBD.
