Paul,

    Is there a good choice for EFI controllers for the 2^nd gen P Port?

    Which one could accommodate a MAF sensor?

    I have place a unit use in Ford V8s in the intake tract,

    Does TPS work on the P Port?

    Does Teeing the chambers using the oil spray orifices work with MAP
    on the P Port?

    I have an EC-4 single processor unit from Tracy,

    I just want to get the engine running and have been sorting out
    wiring sensors.

    Joe Berki



    Limo EZ 13b P Port


    Tracy's device is designed to use manifold pressure and not MAF
    sensors.

    The only controller that I know about that will use a MAF is the
    $3000 Motec. That has very steep learning curve indeed with
    inadequate documentation.

    Megasquirt might work.

    Do you know how to program in BASIC?

    What is TPS?

    Paul Lamar

   Joe,   I have just switched to Fueltech and am very happy with it now,
   but a lot of grief to get here.  All revolved around not enough fuel,
   for the standard fueltech is programmed around standard injectors in a
   rotary.  Does everything I need and possibly 3 times what is needed.  I
   really do not need to know when to change gears, nor to log into
   "burnout" mode etc.  Google fuel tech and there is an online instruction
   manual.  Cost me  $3300 AUD so in USD take possibly 25% off and freight
   to OZ as well.

   Neil Unger.


   Here is a you tube video I ran across on Neil's first start.
   If anybody else has a a you tube video let me know.

   https://www.youtube.com/watch?v=hSNBFLuZSK4 <https://www.youtube.com/watch?v=hSNBFLuZSK4>

   Not long after this some no nothing juvenile has a video called why the rotary died? :-)
   He is totally clueless and made up  non existent phony problems. Fake news :-)

   There are some other aircraft rotary videos in this group by
   other people on the list.

   Paul Lamar

Why the rotary died. No knowledge numb nuts. I would say a couple of problems. Yes economy and emisions are issues. The big problem is that when Ford owned about 35% of the company they had a lot of pull. Part of that allowed them to send executives to monitor expenses. The bank prior to that had started pulling the reins when the exchange rate was not as favorable for Japanese industry which adversely affected sales. Ford execs pulled focus to more mainstream products that are an easier sell and with well established technology. Now there is many in management that subscribe to the quick easy money deal. Not many of the original engineers and staff that overcame the rotary design issues virtually every other company gave up on. Still some enthusiasts there though.

Dale Davies

One of the so called problems mentioned is the alleged loss of compression as the apex seal
passes over the spark plug hole.  Fake news.

These people have not read Kenichi Yamamoto book "Rotary Engine".
Essential reading.

Air has inertia. Think of air as a lot of tiny marbles. If you only open a hole for a tiny
fraction of second not much air will pass through.

I suspect the combustion chamber has yet to be accurately  modeled by
CFD. Computational Fluid Dynamics. This is the gist of the problem understanding
how to improve the combustion. It is a moving combustion chamber and the
air will respond consistent with it's inertia.


Paul Lamar

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