OS 1.60 Issues

[RC Steve Sterling]

Try lengthening the distance to the pipe baffle 1/2 to 1 inch. Sure fixed my
midrange with the Greves.
  -----Original Message-----
  From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On
Behalf Of JonLowe at aol.com
  Sent: Tuesday, June 01, 2004 5:09 AM
  To: discussion at nsrca.org
  Subject: OS 1.60 Issues


  I have a Titan, OS 1.60, Mueller header, Greve pipe, Ironbay regulator
before the needle valve, OS #8 plug, running a 17x13 with 15%.   Tank is
monted over the CG.  Hyde mount.  As near as I can measure around the
header, I am at the length that Piedmont recommends for these pipes on their
site.  Good power at full throttle, but midrange stinks, wanting to load up
at 3/4 throttle, and not transition to full throttle.  Also, the mixture
changes in the air, upright to inverted, going rich inverted.  I have the
regulator mounted horizontally about 1.5 inches from the needle, do I need
to mount it fore-aft like a Cline?  Do you think I need to extend the length
of the pipe?  Any carb adjustment tricks?  I'm new to pipes, so any info
will help.

  BTW, the original  pressure check valve went bad before I even got to fly
it.  I got a check valve (Foremost) from my local hobby shop that seems to
work, developing pressure and holding it well.  Have others had problems
with the Ironbay valves?

  Thanks.

  Jon Lowe
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