Hey Paul,

              My buddy and I were talking about BD5's (not a good idea -
         Hah!), and
              the discussion reminded me of that little Wankel Cart engine
         that was
              mentioned here a while back.

              http://www.nova-racing.com/nova_gb/index.htm

              I started pondering making one of these things as a two
    rotor -
         seems
              perfect - starts out water cooled and it looks like it
    might be
         p-port.
              The only thing I think I don't like are the roller bearings..

              The thing that stuck out when looking at the pics is that the
         rotor is
              so wide compared to it's other dimensions.




http://www.nova-racing.com/nova_gb/Preise/Einzelteile_Orig/XN079%7E6.JPG

              I imagine this is how the 16B rotors might look...

              I think trying to convert one of these to a two rotor might be
              preferable to converting a 13B to a single rotor, and
    might end
         up in a
              similar (slightly lesser) horsepower range. A complete
    single rotor
              weighs less than 40lbs. It seems that a 92hp 2 rotor might
         weigh around
              75lbs - light! A 90hp Continental weighs 180lbs+..


              Matt-

              Yes it sounds like a better idea than a one rotor 13B.

              --
              Paul Lamar ...No rotor no motor.


              Matt,

              That's a nice little engine. How would you combine two of
    them,
         bolt
              the shafts to one another?

              What about the crankcase intake? Wouldn't that be in the
    way to
              bolting them together end-to-end?

              The specs say 31 kilowatt, which is 41 hp, so two would be
    82 hp.


              Regards,

              Gordon.


    Gordon,

    I was thinking that an intermediate housing would need to be developed,
    along with a custom e-shaft.

    The description of the intake seems somewhat vague..  I agree that it
    must have a side port as currently configured, but the description talks
    about a 2nd port opened above a 5500rpm.  It would be slick if that were
    on the rotor housing (p-port) instead of the end housing.  Even if both
    ports are on the end, a p-port might still be possible - just like on a
    13b.  At least it isn't charge-cooled..

    I see several values of power bandied about on their page..  One link
    says 48hp, another says 41(.5) and the graph shows a peak of about
    45.5hp (above 8000rpm)..  I think it all depends on the RPM used.


    Matt-

    It is charged cooled Matt. You can tell by looking at the
    seals picture. I think the second port is a p-port.

    --
    Paul Lamar ...No rotor no motor.



Okay Paul,

Thanks.  What are you looking at on the rotor?  Is it the big hole
through the rotor just behind the apex seal?


Matt-

Yes. I thought I had some diagrams on charge cooling but I searched
the web to no avail. Anybody have any illustrations on charge
cooling?
-- 
Paul Lamar ...No rotor no motor.

Are operating and shop manuals available for these engines?  I didn't notice
any mentioned on the German web-page.  The devil is always in the details.

George W



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