Richard wrote:

Made a first test run with P-Port only. The side port was closed off
at the side housing.

Fired up immediately. Idles at 1200RPM. No close up butterfly. Intake
control is with carb slide only (38mm Mikuni).

Intake length is 6.5" and is not supposed to be tuned any at this
time.

Exhaust is equipped with tangential muffler with no buffles inside.
Can be tolerated in the test stand without ear protection.

I am pretty sure that this is the end of the combination port
configuration, as far as I am concerned. With 1200RPM idle and
7500RPM max, I have a RPM ratio of 6.25/1 giving a comparable LYC >> idle
speed of 432RPM, I can't ask for any better.


Richard Sohn
N-2071U
unicorn@gdsys.net

Great news Richard.   I must say I am not surprised by the excellent
results.   Jerry

As far as idle is concerned the jury is still out as Richard is still using
a rather short 6.5 inch runner. That means the butterfly is still not that far from
the port opening in the rotor housing.

 
Paul Lamar
 
The Rotary Engine NewsLetter.  Powered by Linux.
ACRE NL web site. http://home.earthlink.net/~rotaryeng/            
Copyright 1998-2004 All world wide rights reserved.