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<DIV><FONT face=Arial size=2>Ok, I agree the 23% nitro is not necessary; been
running YS engines for a long time. I'll look into the MACs headers and
other prop sizes.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Bob</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=cjm767driver@hotmail.com href="mailto:cjm767driver@hotmail.com">Chris
Moon</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=rharden1@cox.net
href="mailto:rharden1@cox.net">Robert Harden</A> ; <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 13, 2005 3:29
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [SPAM] Re: OS 1.4 RX Header and
Pipe installation in Focus II</DIV>
<DIV><BR></DIV>Bob:<BR> I know that Macs has header with
different rises than the OS. I have a 2 1/4" rise header that I got from
them that I run in my Eclipse (s). Just my opinion, but I think the 23%
nitro is not necessary at all. I would not expect anything as far as
better performance over 15%. Also, the 17-13 might be more load than it
likes, especially when it is new and you are trying break in the motor.
I thought the 17-12 was the best 2 blade prop, or a 15 3/4 - 10 or 11 3 blade
APC "Lockhart" for an awesome combination.<BR><BR>Also - check out Ed
Hartley's web site for lots of other OS pipe - prop etc combos<BR><BR><A
class=moz-txt-link-freetext
href="http://www.rcpattern.com/2cycle.htm">http://www.rcpattern.com/2cycle.htm</A><BR><BR>Chris<BR><BR><BR>Robert
Harden wrote:<BR>
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<DIV><FONT face=Arial size=2>I would like some advise for installing a
header and pipe in a Focus II. I have the OS 1.4 RX engine, the OS
72102100 Header and the OS T-6010 Tuned Silencer. My problem is
that the header has interference with the firewall. I don't really want to
remove material from the firewall to gain clearance. Is there another
header that I could use? My other question is if the OS Tuned Silencer
is the best choice? I also would like to know what the length should
be if the tuned silencer is used. I am planning to
use an APC 17 X 13 prop and Magnum # 1 2 cycle fuel (approx
23% nitro). All suggestions are welcome.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Bob
Harden</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>