snips

Looking at the pictures, I am surprised that the ports are horizontal
instead of perpendicular to the housing.       jerry

That is more closely aligned with the actual air flow.

Paul

The drawing of the "low cost pp" shows the ports perpindicular to the
housing.     I am hoping to  start working on this before you come back
from Oz.   Is this an important concern?  What are your thoughts?

I don't think it is all that important but it also looks
easy to do. You might as well go in horizontal like Paul Yaw. I would copy
the Leman porting as closely as possible by scaling it off this
drawing. Here is a gif again for
the Leman engine. Should be an easy 240 HP at 6000 RPM. 
Maybe a little less with the butterflies right up next to 
the rotor. When you get it built you can test it on the
dyno in SZP sometime late June or early July. We can also
test the motor plate, muffler and any Tailwind motor mount you come up
with if it will bolt to a flat firewall. PL

Also,  I ordered the steel today to build the rack to test the MM plate
rigidity.

Also, regarding the MM Plate stand off,  after trying every other scheme
I could think of I am back to wrapping spools with aluminum sheet per
your original design. I am starting to like the concept.  ....Jerry

Thanks Jerry best I could come up with to kill some of the weight.

Paul Lamar
 
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