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Date: Fri, 23 Nov 2012 21:59:55 -0600
Message-ID: <CAHh3jbPxeLh2pyZA2t1-i-uJ7YAaNhmU95w--ORULsdaYJMMdg@mail.gmail.com>
Subject: Re: [FlyRotary] Defined Autoworks parts site / Mark's 20B
From: Mark Steitle <msteitle@gmail.com>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
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Sounds about right, maybe a bit more hp than I'm making, but I haven't
dyno'd my motor so that's just a guess.  Intake and exhaust have a big
effect on power.  If my exhaust runners were equal length and tuned, my
motor would probably be within a few hp of those numbers.  But since I
don't have room under the cowl for long pipes, I'll have to live with what
I get.  What I can say is that I picked up 20+ knots on the top end over
the original side-port 20b motor.

Mark

On Fri, Nov 23, 2012 at 7:43 PM, <DLOMHEIM@aol.com> wrote:

> **
> Interesting dyno printouts!  How does your P-Port compare to the their 20B
> numbers Mark?  The one screen showed them producing about 320 hp at 7,000
> rpm...
>
> Doug
>
>

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Sounds about right, maybe a bit more hp than I&#39;m making, but I haven&#3=
9;t dyno&#39;d my motor so that&#39;s just a guess. =A0Intake and exhaust h=
ave a big effect on power. =A0If my exhaust runners were equal length and t=
uned, my motor would probably be within a few hp of those numbers. =A0But s=
ince I don&#39;t have room under the cowl for long pipes, I&#39;ll have to =
live with what I get. =A0What I can say is that I picked up 20+ knots on th=
e top end over the original side-port 20b motor.=A0<div>
<br></div><div>Mark=A0<br><br><div class=3D"gmail_quote">On Fri, Nov 23, 20=
12 at 7:43 PM,  <span dir=3D"ltr">&lt;<a href=3D"mailto:DLOMHEIM@aol.com" t=
arget=3D"_blank">DLOMHEIM@aol.com</a>&gt;</span> wrote:<br><blockquote clas=
s=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;pad=
ding-left:1ex">
<u></u>



<div style=3D"font-size:10pt;font-family:Arial"><font color=3D"#000000" fac=
e=3D"Arial">
<div>Interesting dyno printouts!=A0 How does your P-Port compare to the the=
ir=20
20B numbers Mark?=A0 The one screen showed them producing about 320 hp at=
=20
7,000 rpm...</div>
<div>=A0</div>
<div>Doug</div>
<div>=A0</div></font></div></blockquote></div><br></div>

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