<HTML><FONT FACE=arial,helvetica><FONT SIZE=2 FAMILY="SANSSERIF" FACE="Arial" LANG="0">In a message dated 6/5/2003 3:48:15 PM Eastern Daylight Time, James.Woodward2@edwards.af.mil writes:<BR>
<BR>
<BR>
<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Subj:<B>RE: MC carb for Webra </B><BR>
Date:6/5/2003 3:48:15 PM Eastern Daylight Time<BR>
From:<A HREF="mailto:James.Woodward2@edwards.af.mil">James.Woodward2@edwards.af.mil</A><BR>
Reply-to:<A HREF="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>
To:<A HREF="mailto:discussion@nsrca.org">discussion@nsrca.org</A><BR>
<I>Sent from the Internet </I><BR>
<BR>
<BR>
<BR>
I think the 31.5" is correct from plug to aft edge of pipe. That means you<BR>
cut the header down some. I did this, and it worked just fine for my Webra<BR>
R and AAR. <BR>
<BR>
You can adjust the engine to run perfect on the ground. However, if you<BR>
hear a "pop" when pushing from inverted and adding power, you will need to<BR>
RICHEN the midrange. <BR>
<BR>
Jim W.<BR>
<BR>
-----Original Message-----<BR>
From: Jerry Budd [mailto:jbudd@QNET.COM] <BR>
Sent: Thursday, June 05, 2003 8:26 AM<BR>
To: discussion@nsrca.org<BR>
Subject: Re: MC carb for Webra<BR>
<BR>
Brian,<BR>
<BR>
According to the Piedmont website the baffle is 4" ahead of the aft <BR>
end of the pipe so that puts you at ~27.5" from plug to baffle. When <BR>
I tried the Greve pipe that Piedmont sells, I found that to be too <BR>
long (way down in power compared to my ES pipe at ~24" plug to <BR>
baffle).<BR>
<BR>
Lee, Jim W., Matt - Are these needle settings close? I haven't run <BR>
the ProMixII carb in a while.<BR>
<BR>
It sounds to me like the pipe may need to be shortened some, and the <BR>
low end richened up a bit. You also probably got the motor a bit hot <BR>
when the pump got FOD'd and that's why the internals are a bit dark.<BR>
<BR>
Jerry</BLOCKQUOTE><BR>
<BR>
Jerry I think you are correct. The low end and particularly middle, sound like they are lean. Brian was going to get his pump re-adjusted for a little more output, but I haven't spoken to him lately and I don't know if that helped or not. <BR>
<BR>
As far as needle settings, I still run the older carb and Im not sure about the newer one. Be that as it may, the settings are very close to what I use on my older set-up; however, the needles are different so that is just coincidence maybe.<BR>
<BR>
matt</FONT></HTML>