> >> >> >>  We removed the liner from the rotor housing exhaust port and will use
     > >> >> >>  that port as the intake.
     > >> >> >>  The end housings are aluminum and will have the exhaust ports in them.
     > >> >> >>  Since we are building the end housings we can set up the port timing
     > >> >> >>  like we want, similiar to the Rx8 engine design.
     > >> >> >>  Royce

     > >> >> > Hi Royce, I would have thought that the exhaust port is 'too early' in the intake
     > >> >> >
     > >> >>  cycle to be used as an intake; or do you intend to open it up towards a "later"
     > >> >>  position of timing? I like the idea if it works. Dave McC

     > >> > Royce,after more musings on this, if you ran the engine in reverse, the
     > >> >
     > >> exhaust port would be pretty close to optimum for an intake, and your new
     > >> side exhausts could be above, somewhere close to the 'level' of the original
     > >> intake.Is this what you intend to do? Following with much interest, Dave McC

     > Dave, sorry for the delay in my reply to your privious message.
     > Have been very busy for the last 3 months. I should have said "VERY".
     > The engine will be a mirror image of the mazda. In other words the shaft
     > will still run the same direction, but the rotor
     > housing will be flipped over so that the intake and exhaust are on the
     > right side when viewed from the front, jsut the opposite
     > of the production engine. It will use the front rotor and front
     > stationary gear so the rotor pockets are correct for the
     > combustion chamber.
     > This will put the intake at the bottom of the housing and the
     > exhausts at the top, just reversed from production.
     > If you consider your assumption of reversing the engine, and
     > building aluminum end housings with the exhaust ports in them
     > instead of the rotor housing, you will see that you are correct,
     > the intake (P_Port) will be in a good location.
     > If you study the exhaust port location in this light, you will
     > see that it will be located about the same (as an intake) as it
     > is from the factory.
     > The steel liner in the rotor housing leaves much room for port
     > shape and location.   You can set the port timeing just about as
     > you please.
     > The concept here is to have a huge p-port, and side exhause with no overlap.
     >
     > We had all the patterns for this at Sun N Fun, but not everyone was able to come.
     > We will post some pictures as soon as we have the time to do so.
     > The side exhaust ports with little to no overlap will make the
     > exhaust quiter, cooler because you will burn more of the charge,
     > and eliminate much of the internal EGR of the present engine.
     > Royce

     Royce,

     This I gotta see!!!  Please bring all the pieces to Tracy's or Charlie's for a 'Show and Tell'.

     Ken Powell

 
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