Subject: M&W ignitions tech support or the lack there of.
From: paul lamar
Date: 8/18/2017, 10:28 AM
To: A10-Me-Earthlink <rotaryeng@earthlink.net>, "wayne sales"@mwignitions.com



    Joe,

    Here is an over view of the maximite. We also have a Maximite source
    code program for recording the compression on the rotary. The Mazda
    tool to do this is several hundred dollars.

    ----------------------------------------------------- Here is some
    experiments with the Ford V8 mass air flow sensor. I uses a small
    electric fan to simulate the air going into the engine. Worked like
    a charm. Of course it was idel air.


    Paul Lamar

    Paul, So if we were to use one maximite for each rotor it would be
    possible to control the injectors for a two rotor. And I guess it
    could be set up to work with a MAP sensor instead of a MAF sensor.

    Is it possible to have the injector sequence end at say 80° before
    top dead center? Could this be shown in a chart form? Injector timing
    BTDC/pressure/RPM

    Could you also have chart showing the injector duty in cells for
    pressure versus RPM?

    Or would we need more maximite boards for each of these functions?
    Barry Bordes

    The Manifold Air Pressure sensor does not compensate for air
    temperature. The Mass Airflow Sensor does.

    One Maximite per rotor does it all. You fire the injector once per
    revolution.

    A very simple way of firing it at any crank angle is use another
    crank angle sensor. That removes a lot of software.

    I would inject into the next chamber when it came time to fire the
    plug in a given chamber.  The unique geometry of the wankel allows
    this. Super simple.

    A third Maximite could record everything once a second and display
    everything on the small LCD on the instrument panel.

    Paul Lamar


   Paul,

   What fires the ignition?

   I looked at the M&W site and there are T1, t2, l1,and L2.

   Joe Berki

    Those are the Leading and Trailing coils.

   Four total. One for each plug.

   Simple.


   Joe,

   This is the conversation I had with M&W sales.
   I was unable to find out how to trigger the system with or with out a computer.
   Apparently I was talking to a non engineer.

   I think it will work but you will have to buy one and experiment with it to find out.
   A pulse is a pulse whether it comes from a computer or a conditioned CAS.

   They make some good stuff in Oz but the documentation sucks.

   Maybe somebody else on here that speaks Oz can try :-)

   I give up.

   ----------------------- Last message first format.--------------------------


   M&W Ignitions <sales@mwignitions.com <mailto:sales@mwignitions.com>>

   Wayne, are you an engineer or electronic technician
   or are you just sales? Do you know what a CAS is?
   If not show this message to the engineer.

   Suppose I fired L1 and T1 with the same leading edge  pulse from the stock CAS (crank angel sensor)
   at 22 degrees BTDC and used another CAS  180 degrees out to fire L2 and T2 would
   that work with the  rotary ignition _Pro-14R <http://www.mwignitions.com/pdf/Rotary%20S3%20instructions.pdf <http://www.mwignitions.com/pdf/Rotary%20S3%20instructions.pdf> ?_

   What would I have to connect pin 5 to.

   Paul

   Please explain exactly what you need.


   Wayne

   so we would need 4 for a rotary. One for each coil. That does not sound like
   the lowest cost solution.

   Suppose I fired L1 and T1 with the same leading edge  pulse from the stock CAS (crank angel sensor)
   at 22 degrees BTDC and used another CAS  180 degrees out to fire L2 and T2 would
   that work with the  rotary ignition _Pro-14R


<http://www.mwignitions.com/pdf/Rotary%20S3%20instructions.pdf> ?_

   What would I have to connect pin 5 to.

   Paul Lamar

   On 08/17/2017 01:01 PM, M&W Ignitions wrote:

    Paul

    Our single channel Pro-10R already has a reluctor interface built in
    and we will be releasing an adjustable rev-limiter version of it
    shortly.

    Regards

    Wayne



    do you have a single channel system?

    we find that a fixed 22 degrees BTDC works fine for us.

    No variable advance.

    We use a LM1815 conditioning IC The pdf is attached.

    It works with a CAS set to 22 degrees BTDC


    Paul Lamar


    On 08/16/2017 08:55 PM, M&W Ignitions wrote:

    Paul

    The multi channel systems are designed fro triggering from an ECU
    not crank trigger.


    Wayne


    how do you get your ignition to work with a carburetor? Is is
    sufficient to trigger pin 5 with a crank angles sensor?

    If so what do I do with pins 25, 27, 28 and 29?

    Paul


    On 08/16/2017 07:43 PM, M&W Ignitions wrote:

    Sorry, we do not understand your question.

     Wayne

--------------------------------------------------------------------


   Paul Lamar



   GEEZ, some sample hook up drawings would be nice !

   Steve Carlisle




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