So saramos, how will that fan get air to the engine?
It looks to me that it will be blowing the air into the engine block.
Or is it simply meant to push the air out as well as the exhaust.

Looking forward to the engine run results.

By the way, I mentioned this somewhere else:
I'll be doing a similary experimental fan cooling system, and I thought
that a good way to test the engine performance in a moving air stream
(without flying) would be to mount the fuselage to the top of my car.
Then I'd put thermocouples inside the engine area and run the cords
to a digital meter in the car, where I could observe the readings while
I drive on a desolate road. What do you think?

I also think I'll be doing the maiden flight with the cowl off, or with a
second cowl that has big air holes in it.