-- 
Paul Lamar ...No rotor no motor.


Paul,
Isn't the Rotamax charge cooled for the rotors? If you p port it, you loose
the charge cooling on the inside of the rotor. I expect it will need some
type of forced induction to increase power.
Larry


One would think so but apparently it still works. Here is a picture of the
AIRXO go cart
engine with both p-port and charge cool port. This engine has been pumped up
to 100
HP with a Rotrex super charger for a paraglider power plant. This must be
a worlds record power to weight ratio for an intermittent internal
combustion engine.

What I think happens is you get some additional rotor cooling from the
charge entering the p-port.

Perhaps what is also happening is silicon nitride ceramic roller rotor
bearings and
silicon nitride ceramic apex seals are being used so it is less important to
cool
the rotors. Ceramic roller bearings are less affected by high heat than
steel
bearings. Same goes for apex seals. Some of the reasons for oil cooling the
rotors
in the Mazda is to cool the rotor bearings and help cool the apex seals.
Most of
the apex seal cooling is now done by the injected apex seal oil in the Mazda
engine.

With less rotor cooling there is less waste cooling heat.

Paul Lamar ...No rotor no motor.

Paul,

Without revealing the finite details we are working on two paths for
increased HP in our engines, one is boost as the short term solution and the
second is replacing the boost with NA HP, our goal is 100 HP at 5000RPM.
Cooling the rotor is the one area as your readers have pointed out that has
to be considered in this approach. We will keep you posted as to our
progress and or results as they relate to both approaches for increased HP.

The single rotor is 100 Lbs ready to run, just weighed one that was going
into the shipping crate.

Eric Barger,
RotaMax Inc.



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