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<DIV><FONT face=Arial size=2>many thanks</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Will try the pipe lengths and work from
there.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I did put the 3M head on today, and it helped the
midrange problem considerably.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>GW</FONT></DIV>
<DIV> </DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=wgalligan@cnbcom.net href="mailto:wgalligan@cnbcom.net">wgalligan</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, April 27, 2003 9:03
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: OS 140 and Greve pipe
question</DIV>
<DIV><BR></DIV>
<DIV><FONT color=#000000 size=2>correction to previous post...</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT><FONT size=2>Lance lengthened his
Greive pipe to got more power... he had it to short. Too short can make
it load up too.</FONT></DIV>
<DIV><FONT size=2>Start out with a long pipe setup and shorten till peak rpm
is reached.</FONT></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV><FONT size=2>Excuse meeeeee.....</FONT></DIV>
<DIV><FONT size=2>WG</FONT></DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid">
<DIV><FONT face=Arial size=2><B>-----Original Message-----</B><BR><B>From:
</B>wgalligan <<A
href="mailto:wgalligan@cnbcom.net">wgalligan@cnbcom.net</A>><BR><B>To:
</B><A href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> <<A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>><BR><B>Date:
</B>Sunday, April 27, 2003 8:45 AM<BR><B>Subject: </B>Re: OS 140 and Greve
pipe question<BR><BR></DIV></FONT>
<DIV><FONT color=#000000 size=2>Lance Vanodstrand and I did some testing on
his airplane with the O.S. and grieve pipe. He had the length too long
and couldnt seem to get enough power. The pipe was way too long.
We shortend the pipe and he got much better results. Try shortening it
a little at a time till you reach a peak rpm and if the rpm drop after
shortening it then back it off about 1/4-3/8". You should be
able to turn a 17x12n APC about 8400rpm on 15% fuel O.S. "F" plug. You
could have other issues but this is what we found on the tuning part.
</FONT></DIV>
<DIV><FONT color=#000000 size=2></FONT> </DIV>
<DIV><FONT size=2>Wayne</FONT></DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid">
<DIV><FONT face=Arial size=2><B>-----Original Message-----</B><BR><B>From:
</B>GW <<A href="mailto:gw@gwair.com">gw@gwair.com</A>><BR><B>To:
</B><A href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> <<A
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A>><BR><B>Date:
</B>Saturday, April 26, 2003 11:04 AM<BR><B>Subject: </B>OS 140 and Greve
pipe question<BR><BR></DIV></FONT>
<DIV><FONT face=Arial size=2>Can someone let me know the proper setup
lengths for this engine and pipe combo? OS 140 /Greve pipe.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have tried many different lengths on the
pipe, and many different setting on the needles, and I still have a very
rich midrange that the engine cannot overcome. The engine will reach max
RPM if I go from idle to full throttle in a quick transition, but with a
slow advance of the throttle from low to high, it stumbles,spits and
sputters from mid throttle on and often just quits after a few moments of
stumbling.and never reaches max rpm.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have run the pressure adjust on the pump
out up to 1 1/2 turns to reduce pressure, with little or no
change.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am about to install a 3M head with dual
plugs to see if it will help.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>As a side note, I have a CD products Muffler
(very restrictive but quiet) and the engine runs flawlessly on this setup,
Transition is perfect, but this setup will not fit in my new CA Models
Eclipse, so the Greve needs to work!</FONT></DIV>
<DIV><FONT face=Arial size=2>
<DIV><FONT face=Arial size=2>Any advise?</FONT></DIV>
<DIV> </DIV></FONT></DIV>
<DIV><FONT face=Arial size=2>Thanks</FONT></DIV>
<DIV><FONT face=Arial size=2>GW</FONT></DIV>
<DIV><FONT face=Arial size=2>Gerald</FONT></DIV>
<DIV><FONT face=Arial
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