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Date: Sat, 25 Jun 2011 10:36:33 -0500
From: Charlie England <ceengland@bellsouth.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: Floscan orientation, fuel line size
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Thanks, Tracy. My pumps and the regulator are on the floor between spar 
& firewall (RV-7), & it's an easy path up the diagonal brace on the 
firewall, with the sensor at roughly mid point. A second look a the 
firewall, & the angle is closer to 60 degrees (measured it:55*). This 
spot may not  work anyway; it's looking like rudder pedals may hit it or 
the fuel line if run there.

I think I'll take a closer look at -4 lines, though.

Charlie

On 6/25/2011 9:43 AM, Tracy wrote:
> Just guessing on Q1 but I think it would work OK in that orientation.
>
> I used 5/16" fuel line on my 231 floscan sensor but it's in automotive 
> EFI rubber type plumbing.
>
> Tracy
>
> Sent from my iPad
>
> On Jun 25, 2011, at 8:14 AM, Charlie England <ceengland@bellsouth.net 
> <mailto:ceengland@bellsouth.net>> wrote:
>
>> OK, 2 questions.
>>
>> 1. For those using Floscan fuel flow transducers:
>>
>> Anyone have a floscan 201 sensor that's working ok while mounted in 
>> other than a horizontal position? My most convenient location would 
>> have the fuel path flowing up at a 45 degree angle. In addition, the 
>> mounting can have the wires 'up', but mounting would be a bit more 
>> convenient with the wires pointing horizontally.
>>
>> 2. While researching Q1, I found a note from the guy who makes 
>> Airflow Performance fuel injection systems for Lycs (they run at 
>> around 15-30 psi), recommending 1/4" (AN-4) fuel lines firewall 
>> forward to minimize fuel heating & vapor lock. I've already been 
>> tempted to consider this instead of -6 (saves weight, running lines 
>> is easier, etc) because the injection pumps & automotive systems use 
>> small diameter lines, but was reluctant to go against 'convention'. 
>> Has anyone who's flying an injected rotary used -4 fuel lines to feed 
>> the engine?
>>
>> Thanks,
>>
>> Charlie


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    Thanks, Tracy. My pumps and the regulator are on the floor between
    spar &amp; firewall (RV-7), &amp; it's an easy path up the diagonal
    brace on the firewall, with the sensor at roughly mid point. A
    second look a the firewall, &amp; the angle is closer to 60 degrees
    (measured it:55*). This spot may not  work anyway; it's looking like
    rudder pedals may hit it or the fuel line if run there. <br>
    <br>
    I think I'll take a closer look at -4 lines, though.<br>
    <br>
    Charlie<br>
    <br>
    On 6/25/2011 9:43 AM, Tracy wrote:
    <blockquote cite="mid:list-5032397@logan.com" type="cite">
      <div>Just guessing on Q1 but I think it would work OK in that
        orientation.</div>
      <div><br>
      </div>
      <div>I used 5/16" fuel line on my 231 floscan sensor but it's in
        automotive EFI rubber type plumbing.</div>
      <div><br>
      </div>
      <div>Tracy<br>
        <br>
        Sent from my iPad</div>
      <div><br>
        On Jun 25, 2011, at 8:14 AM, Charlie England &lt;<a
          moz-do-not-send="true" href="mailto:ceengland@bellsouth.net">ceengland@bellsouth.net</a>&gt;
        wrote:<br>
        <br>
      </div>
      <blockquote type="cite">
        <div> <font size="+1"><font face="Arial">OK, 2 questions. <br>
              <br>
              1. For those using Floscan fuel flow transducers:</font></font><font
            size="+1"><font face="Arial"><br>
              <br>
              Anyone have a floscan 201 sensor that's working ok while
              mounted in other than a horizontal position? My most
              convenient location would have the fuel path flowing up at
              a 45 degree angle. In addition, the mounting can have the
              wires 'up', but mounting would be a bit more convenient
              with the wires pointing horizontally.<br>
              <br>
              2. While researching Q1, I found a note from the guy who
              makes Airflow Performance fuel injection systems for Lycs
              (they run at around 15-30 psi), recommending 1/4" (AN-4)
              fuel lines firewall forward to minimize fuel heating &amp;
              vapor lock. I've already been tempted to consider this
              instead of -6 (saves weight, running lines is easier, etc)
              because the injection pumps &amp; automotive systems use
              small diameter lines, but was reluctant to go against
              'convention'. Has anyone who's flying an injected rotary
              used -4 fuel lines to feed the engine?<br>
              <br>
              Thanks,<br>
              <br>
              Charlie<br>
            </font></font> </div>
      </blockquote>
    </blockquote>
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