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<DIV><FONT face=Arial size=2>Thanks for the info Lance, do you mind if I call
you Mon. to talk to you about the problems I am having with the
mintor</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=patterndude@comcast.net href="mailto:patterndude@comcast.net">Lance
Van Nostrand</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> Saturday, June 12, 2004 1:32
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Minto 170</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Brian,</FONT></DIV>
<DIV><FONT face=Arial size=2>Interesting ying and yang here on engines.
2 stroke tuning problems don't arise that often, and last week you couldn't
get a word in edgewise for all the YS blues!!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>it's not common that the midrange would be lean,
especially on the full Mintor setup. I haven't seen that. The pipe
is an essential part of balancing the mixture in a 2 stroke and I know the
Mintor pipe produces an even mixture, even if not top power. Please
check the engine cooling. This can significantly affect
performance. Fly with the cowl off for comparison. If there's a
difference, then maybe you need more exit area, or another hole in the bottom
of the chin cowl behind the engine. </FONT></DIV>
<DIV><FONT face=Arial size=2> If the engine is lean in
midrange it will get very hot in the air and this is not good. I've seen
one engine where the owner decreased teh pump pressure so much that it went
lean in midrange and he nearly burned it up. Are you still at the
factory pump setting? If you've decreased the pump pressure, then
increase it again. If you are flying 10%, then increase to 15%.
Some engines of early vintage prefer a bit more nitro. Another way to
richen the midrange is to shorten the header. This is not my first
suggestion though, because the factory setup works fine, however I've
experimented with doing this and found that the 170 will gain a lot more power
on a slightly shorter pipe at the expense of a richer midrange.
Normally, this is a bad thing.</FONT></DIV>
<DIV><FONT face=Arial size=2> I have had good luck with setting
everything a slight bit rich on the ground. This is not because I'm
expecting it to lean out in the air, but because I think it helps the engine
slow down faster and it doesnt' spool up on downlines. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>--Lance</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=auto7832@bellsouth.net href="mailto:auto7832@bellsouth.net">Lena
Billings</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> Friday, June 11, 2004 9:27
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Minto 170</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Oh, I forgot to ask if anyone has any good tips
on running the Mintor 170 with Mintor header and pipe, I have been careful
as to not tear this one up yet and refuse to fly her until she is right as
possible, mid range seems lean on the ground but idle is good and high end
can be set very rich with no problem so pump seems ok. Also does
anyone know of a air filter that fits these?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks</FONT></DIV>
<DIV><FONT face=Arial size=2>Brian
Billings</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>