From: "Neil Unger 12348ung@gmail.com" <flyrotary@lancaironline.net>
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Subject: Re: [FlyRotary] Re: ECU
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Message-ID: <10898797-ee6f-dec3-1f42-0bf9ef1620b4@gmail.com>
Date: Wed, 19 Sep 2018 07:42:34 +1000
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Bill,  Looking at a crank trigger as ultimate aim is alloy end plates.  
Machining is simpler without the older distributor in that regard.  Neil.


On 9/19/2018 5:15 AM, William Jepson wrjjrs@gmail.com wrote:
> Neil,
> Depending on which year you have you can do this two ways. If you have 
> the distributor version (older) You can use any of several simple 
> electronic ignition boxes. Run a simple collapsing field coil and a 
> small plug gap. As a variant you can use some of the aftermarket coil 
> on plug coils. The original Powersport ran a simple Mallory optically 
> triggered electronic ignition. Less than $80.00 at the auto parts 
> store, and the Mazda original Crank angle sensor. (distributor) No 
> high tension leads just a cap, and several multi-lead motorcycle 
> coils. As simple as it gets. You can also get crank (eshaft) triggered 
> basic electronic ignition. Or change over a distributor type to a 
> crank triggered if it has hall effect pickups by doing your own 
> trigger wheel.
> Bill Jepson
>
> On Tue, Sep 18, 2018 at 12:33 AM Neil Unger 12348ung@gmail.com 
> <mailto:12348ung@gmail.com> <flyrotary@lancaironline.net 
> <mailto:flyrotary@lancaironline.net>> wrote:
>
>     Now I am confused!!  Let me start again and where I am coming from is
>     the everyday builder that may consider a rotary over a Lyc.
>
>     Price and time will dictate in most cases.  Lets start with a second
>     hand Lyc  $30,000  That gives "wriggle room" on a rotary of say $15 -
>     20,000 ready to go.
>
>     $10,000 for an redrive and ECU does not leave much especially if
>     it is a
>     single rotor.
>
>     I really like Lynn's suggestion of fixed ignition together with a
>     Rotec
>     carby,  Carby $600 USD and fuel is mainly done together with the
>     ability
>     to control mixture via the carby.
>
>     THat leaves ignition   NO matter how I look at it with any sort of of
>     ECU it takes little to get to say $2000 -- if you have some idea
>     about
>     computers -- I don't!
>
>     What is actually necessary  with a simple ignition?  MY choice in
>     order
>     is  Spark and timing. RPM,  A/F ratio,   Engine and oil temp and
>     pressure , Battery voltage.  Then whatever turns you on as
>     anything else
>     is not critical to flight or engine health.  I realise that the
>     sky is
>     the limit here but all cost money to be balanced against the
>     Rotary vs
>     the Lyc.
>
>     Suggestions??  Remember I am computer illiterate. I prefer to say
>     I was
>     born too early rather than I am totally stupid!!  Price will sway
>     people
>     to a rotary rather than "lovely" gadgetry that cost a lot of money.
>
>     Neil Unger.
>
>
>     --
>     Homepage: http://www.flyrotary.com/
>     Archive and UnSub:
>     http://mail.lancaironline.net:81/lists/flyrotary/List.html
>


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    <p>Bill,  Looking at a crank trigger as ultimate aim is alloy end
      plates.  Machining is simpler without the older distributor in
      that regard.  Neil.<br>
    </p>
    <br>
    <div class="moz-cite-prefix">On 9/19/2018 5:15 AM, William Jepson
      <a class="moz-txt-link-abbreviated" href="mailto:wrjjrs@gmail.com">wrjjrs@gmail.com</a> wrote:<br>
    </div>
    <blockquote type="cite" cite="mid:list-11659183@logan.com">
      <meta http-equiv="content-type" content="text/html; charset=utf-8">
      <div dir="ltr">Neil,
        <div>Depending on which year you have you can do this two ways.
          If you have the distributor version (older) You can use any of
          several simple electronic ignition boxes. Run a simple
          collapsing field coil and a small plug gap. As a variant you
          can use some of the aftermarket coil on plug coils. The
          original Powersport ran a simple Mallory optically triggered
          electronic ignition. Less than $80.00 at the auto parts store,
          and the Mazda original Crank angle sensor. (distributor) No
          high tension leads just a cap, and several multi-lead
          motorcycle coils. As simple as it gets. You can also get crank
          (eshaft) triggered basic electronic ignition. Or change over a
          distributor type to a crank triggered if it has hall effect
          pickups by doing your own trigger wheel.</div>
        <div>Bill Jepson  </div>
      </div>
      <br>
      <div class="gmail_quote">
        <div dir="ltr">On Tue, Sep 18, 2018 at 12:33 AM Neil Unger <a
            href="mailto:12348ung@gmail.com" moz-do-not-send="true">12348ung@gmail.com</a>
          &lt;<a href="mailto:flyrotary@lancaironline.net"
            moz-do-not-send="true">flyrotary@lancaironline.net</a>&gt;
          wrote:<br>
        </div>
        <blockquote class="gmail_quote" style="margin:0 0 0
          .8ex;border-left:1px #ccc solid;padding-left:1ex">Now I am
          confused!!  Let me start again and where I am coming from is <br>
          the everyday builder that may consider a rotary over a Lyc.<br>
          <br>
          Price and time will dictate in most cases.  Lets start with a
          second <br>
          hand Lyc  $30,000  That gives "wriggle room" on a rotary of
          say $15 - <br>
          20,000 ready to go.<br>
          <br>
          $10,000 for an redrive and ECU does not leave much especially
          if it is a <br>
          single rotor.<br>
          <br>
          I really like Lynn's suggestion of fixed ignition together
          with a Rotec <br>
          carby,  Carby $600 USD and fuel is mainly done together with
          the ability <br>
          to control mixture via the carby.<br>
          <br>
          THat leaves ignition   NO matter how I look at it with any
          sort of of <br>
          ECU it takes little to get to say $2000 -- if you have some
          idea about <br>
          computers -- I don't!<br>
          <br>
          What is actually necessary  with a simple ignition?  MY choice
          in order <br>
          is  Spark and timing. RPM,  A/F ratio,   Engine and oil temp
          and <br>
          pressure , Battery voltage.  Then whatever turns you on as
          anything else <br>
          is not critical to flight or engine health.  I realise that
          the sky is <br>
          the limit here but all cost money to be balanced against the
          Rotary vs <br>
          the Lyc.<br>
          <br>
          Suggestions??  Remember I am computer illiterate. I prefer to
          say I was <br>
          born too early rather than I am totally stupid!!  Price will
          sway people <br>
          to a rotary rather than "lovely" gadgetry that cost a lot of
          money.<br>
          <br>
          Neil Unger.<br>
          <br>
          <br>
          --<br>
          Homepage:  <a href="http://www.flyrotary.com/"
            rel="noreferrer" target="_blank" moz-do-not-send="true">http://www.flyrotary.com/</a><br>
          Archive and UnSub:   <a
            href="http://mail.lancaironline.net:81/lists/flyrotary/List.html"
            rel="noreferrer" target="_blank" moz-do-not-send="true">http://mail.lancaironline.net:81/lists/flyrotary/List.html</a><br>
        </blockquote>
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