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<DIV><FONT face=Arial size=2>I don't recall seeing any two strokes in the FAI
finnals at the Nats. Did I miss any?</FONT></DIV>
<DIV> </DIV>
<DIV>John Ferrell <BR><A
href="http://DixieNC.US">http://DixieNC.US</A><BR></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=troy_newman@msn.com href="mailto:troy_newman@msn.com">Troy Newman</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> Tuesday, September 28, 2004 4:28
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: YS Longevity and Fuel $$$
Part 2</DIV>
<DIV><BR></DIV>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">cont'd from part #1</SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN> </P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">.......</SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"></SPAN> </P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Just because the 2 strokes carry
the 17-12 well doesn't mean the 140DZ has less power if it doesn't like that
same prop. Its a different type of power and you have to get it to work in the
range its happy. For the 140's this happy range is up over 8400 and below
about 9000. If they are running in this range the power is like afterburners.
Load them down and work harder, eat parts and don't like it. The 140 2
strokes can run in the 7800-7900 range and don't seem to have trouble. The
140DZ’s when setup right turn the same basic props at the same RPMS as the 140
2 strokes…but in reality the 4 strokes are not in their torque curve so it
doesn’t matter. Turn the motor where it makes the most power. We have
forgotten this from the old 60 days.<SPAN style="mso-spacerun: yes">
</SPAN>My experience is the YS motors don't like this low 7800 –8000 range of
RPM. So pick a good fuel you can get and run it in the 8400-8800 range. If
your choice in fuels is a std 20-20 blend then don't for throw a 17-12 or
17-13 on the darn thing. It will break it. But try a 15-12W or a 16-11 and see
what happens. If you choose a good fuel and run the engine so it sounds happy
and is not barking every time you throttle it up it will last a good long
time. <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">One Note. I got home and tried the
15.5-12 4-Blade on the 160DZ. Runs very smooth and has Excellent
performance on the 30% Heli. I'm turning it up over 8600 and the model has
very good speed control in this setup. I also found that here in the PHX
summer heat the motor was running cooler than with the 17-12 running the same
RPM. Cooler running is also a good thing on the YS motors just like the
2 strokes. when the 2 strokes get hot they eat bearings rings pistons and so
on and have problems with the pumps. Ask the Webra owners about the pumps and
heat.. Same with the YS but in the YS hot runs also mean cam's, valves and
these parts are $$ and I understand that. Parts is parts and the
cost is high for both 4 stroke parts and 2 stroke parts.. I think it’s a wash
on parts. Yes the YS have more that can go bad and wear…but the 2 strokes need
bearing much more often than the 4 strokes…SO in my estimation it’s a wash.
Besides. If the motor is out of the model does it matter? The problem is it
has to come out of the model….this means down time and frustration. One great
thing about YS is the parts are available. This can't always be said for the
other brands. <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">If you guys have trouble with
your motors or questions email me offline and I'll see if I can help you out
with some ideas. I really want everybody to benefit from the little things I
have learned with these motors. I have been that guy struggling in Wyoming
trying to fly pattern on your own. Its a tough row and I hate to see guys have
trouble with any of their equipment. This is what drives people away from
pattern. I have a good relationship with YS Performance but I choose the
products I run. Nobody pays me! I have run the 2 strokes and found them
to not have the performance I wanted. Webra's OS's and the likes. For me they
didn't stack up. Every setup has its little learning curve and the DZ's are no
different. If I can pass along the info to help you get over the hump with
them I know you'll love them as much as I do.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Sometimes I'm a big advocate of
higher priced stuff than you really don't need in order to play the game. To
me flying time vs down time for repair work is the most important thing to me.
I work very hard to have as little fix it stuff go wrong as possible...This
goes for servos to clevis links to motors-headers-pipes. I've been very
blessed in that people have helped me along and I have learned some little
tricks and tips. I'm 100% willing to pass along the knowledge. It makes
pattern fun for me. For me performance is the most important thing. Not how
many RPMS I can turn Lockhart’s 3 blade prop at, or that I can hit 197 in a
time trial. Its how it performs in the sequence and how it will give me an
advantage to take on guys like Chip, Jason and Quique. These are the pilots I
look toward as the people that have set the standard. I have a passion to
fly at that level with these great pilots. The models, the motors, and
the radio gear is all a tool to apply the trade and if your tool don't work
its darn frustrating I know.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0in 0in 0pt"><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Troy<o:p></o:p></SPAN></P>
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