Stopped in yesterday to take some pictures of Buly's fine airplane.
The finish on this airplane is a sight to behold. It looks like
a world class racing sailboat hull. The sanding is superb as is  the rest of
the work.  A sure fire winner in any workmanship contest.
Not only that... it is cooling very well indeed with a small size  radiator
record.
Buly took a stock all aluminum racing radiator and cut it in half.
IMHO the reason it is cooling so well is due to the P51 style  scoop under the
fuselage with a boundary layer air bleed and the back side of the  rad is
totally
unobstructed. It is no slouch either in the speed department at  200 MPH
with a normally aspirated side port 13B Cosmo engine.
Paul Lamar ...No rotor no motor.

Paul,  Buly

Could you tell me the dimensions on the radiator? I am assuming Buly's
engine delivers around 220 Hp max.

Doug Fir

I think his engine is more like 190 HP. It is only a 2.17:1 to gear  box.
My guess is:  10" by 19" by 2 inches. What is it Buly?

Paul Lamar ...No rotor no motor.

Paul is about right. I don't have the exact measurements with me..
Buly

Nice pictures Buly. Notice Buly uses two constant tension hose clamps
and silicon hose everywhere. Not cheap but well worth it. You don't
want to crash your airplane due to cheap automotive hose and 75 cent
worm drive hose clamps. These pictures are from when Buly had a stock
89 Mazda RX7 turbo. Since removed until Dave Leonard gets some hours
on the modified version. He modified the back cover on the turbo to
attach a second waste gate exhaust pipe but it still over revved at
altitude. These pictures clearly illustrate how small the rotary is
compared to a typical aircraft engine with the same HP.

Paul Lamar

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