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<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV><SPAN class=713432801-10102003><FONT face=Arial color=#0000ff size=2>I am
using a modified CD header and Hatori pipe set-up on my model and I have no
problems. I currently have over 300 flights on this combination using the same
piece of Teflon 5/8 in ID with no noticeable wear or stress.</FONT></SPAN></DIV>
<DIV><SPAN class=713432801-10102003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=713432801-10102003><FONT face=Arial color=#0000ff size=2>I
modified my CD header (Hi Flow version) by having a 5/8 in flange and machined
barged welded to the end of it. The 5/8 in Teflon fits snugly over the end of
it. I use a stainless steel hose clamp to secure it (I will explain why later).
My Teflon coupler is 8 inches long. I then get a piece of 1/2in Teflon thin wall
approx 3/4 - 1 in in length and heat it up with the heat gun until it becomes
very soft. I then force this over the Hatori pipe inlet and let it cool down (It
is a very tight fit) I then heat up the end of the 5/8 Teflon tube with the heat
gun which I then slid over the pipe which I then use a normal spring clamp.
The Hatori inlet diameter is a very loose fit for the Teflon tube. This is why I
use the small piece of 1/2 in. The only part of the pipe I support is the
stinger. This allows the pipe to move freely. There are no other brackets
supporting the pipe inlet or header. I feel this is the best set-up around as it
is very light and durable. The reason for the hose clamp is a normal spring
clamp does not provide enough tension to stop my pipe from rotating during
a flight. I simply support the stinger via a small bracket which has a hole
in it. I place a small piece of silicon over the stinger and push it all
the way towards the pipe. The bracket then slides over the silicon which becomes
a bearing. </FONT></SPAN></DIV>
<DIV><SPAN class=713432801-10102003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=713432801-10102003><FONT face=Arial color=#0000ff size=2>For
anyone interested I could forward some pictures. I must say that this
combination gives the best power over any other system out there. The CD high
flow header (Big diameter all the way to the cylinder head) gives 200 -300 RPM
over any other set-up. The real difference in performance is in the
air.</FONT></SPAN></DIV>
<DIV><SPAN class=713432801-10102003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=713432801-10102003><FONT face=Arial color=#0000ff
size=2>Peter</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> Tony Quist
[mailto:quist23@cox.net]<BR><B>Sent:</B> Friday, 10 October 2003 9:25
AM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> RE: Teflon headers,
followup<BR><BR></FONT></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I was running my DZ
in the drive way trying to tune it.<SPAN style="mso-spacerun: yes">
</SPAN>(<SPAN class=GramE>which</SPAN> I accomplished)<SPAN
style="mso-spacerun: yes"> </SPAN>After 3 or 4 minutes I took my temp
gun to the exhaust and engine. <SPAN
style="mso-spacerun: yes"> </SPAN>The Teflon coupler was 375
degrees.<SPAN style="mso-spacerun: yes"> </SPAN>I was shocked at that
temp.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Tahoma size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">-----Original
Message-----<BR><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B>
discussion-request@nsrca.org [mailto:discussion-request@nsrca.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>EHaury@aol.com<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Thursday, October 09, 2003 8:02
AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B>
discussion@nsrca.org<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B>
Re: Teflon headers, followup</SPAN></FONT></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face="Times New Roman"
size=3><SPAN style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I've used the 5033K39 in
"tunneled" (Typhoon) and "untunneled" (Hydeout) for several years. Headers are
either AAP or CD (cut 0.4" from the circumference of a piece of 5/8 tubing for
a 1/2" "bushing for the CD). Pipes are Hatori mounted at the inlet and outlet
(stinger) on a 5/8 x 5/8 Lord mount. A piece of 3/4" ID silicone
insulator (smaller at stinger) protects wire ties that fasten everything
to "clips" on the Lords. I make the tubing a bit longer than most, around 8",
<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">The tunneled version lasts 200+
flights, the untunneled have not failed in over 500+ flights. Lord mounts will
generally give up before the tubing.<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">This tubing is on the ragged edge
or its heat tolerance. If you find it necessary to run the engine for more
than a couple of seconds at full throttle on the ground expect to replace the
tubing often. This sort of operation can produce exhaust temps >150 deg
above the rating of the tubing and will take it out fast. "Normal" part
throttle flight operation is on the order of 50 deg less than the tubing is
rated, plus there is good air flow to help.<o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Earl<o:p></o:p></SPAN></FONT></P></DIV></DIV></BLOCKQUOTE></BODY><P>***************************** Disclaimer ***************************** </P>
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