Subject: M&W ignitions tech support or the lack there of.
From: paul lamar
Date: 8/18/2017, 4:25 PM
To: A10-Me-Earthlink


    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 <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
    suffacnt 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


    Paul,

    I am using the single channel system, PRO-10R, with the reluctor
    trigger input and a waste spark coil on the single rotor. Connected
    an RX8 CAS and it worked just fine. Had it up to 7000 RPM yesterday.
    I had to order it direct from M&W, because no US dealer does stock
    it.

    FWIW


    Richard Sohn


    Are you firing just one plug Richard or does that waste spark coil
    fire 2 plugs? What did the single channel system  cost?

    Paul Lamar


   Paul,

   I am firing both plugs from the same coil. I paid about $500.

   Richard Sohn


   I assume that is a wasted spark type coil. Is that true.
   Do you have a picture of it?
   That is a one rotor of course.

   This picture shows two coils.

   Paul Lamar


Let's hope the coil driver circuit can handle 2 coils.

Steve Carlisle


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