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Subject: Re: [FlyRotary] Re: Fw: Different Rotary Port configurations
Date: Tue, 19 Jun 2007 12:30:16 -0400
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Hi Jarrett,
How's the "big machine" install coming along? The key to the overlap 
problem is proper exhaust tuning. If the out flow of the exhaust is 
adaquate there will be very little cross flow. In fact the outflow can 
assist the intake. My "best" system would be direct injected so there 
wouldn't be any fuel in the intake charge.
Bill Jepson

Bob Mears wrote:

And let me assure you, a P port will NOT get the same GPH. Theres
a lot of fuel wasted with the P Port due to the overlap in timing.

I've always wondered about this. Realizing that the P-port exhaust lets 
the unburnt fuel into the the exhaust to be burnt there and lost as a 
potential for power. What about a Renisis with the side port exhaust? 
Wouldn't a P-port Renisis not have this problem, and therefore possibly 
produce more power per GPH fuel flow over your typical 13B? Or am I 
missing the big picture..

I've always wondered this..

Jarrett Johnson


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