MINTOR

Mon May 12 07:43:02 AKDT 2003

Hi Eric, Dean,

I've ran the both the 3M 140 and 170.  

The 140 only saw 15% Cool Power and two OSA5 plugs.  From the first start in
my drive way it ran as good as you can expect a new engine to run.  I ran
two tanks using idle, mid, and W.O.T.  Then, took to flying it.  After a few
flights, engine was tached at 8350 with the apc 16.5 x 12W (with header cut
1.0").  

The 170 saw 25% Cool Power from the start, with 1 OSA5 and 1 OSF.  This
weekend, I switched to 15% Cool Power and two OSA5 plugs.  I needed to
readjust the high and low end.  High end was about 5/8 turn leaner.  After a
few flights, it was turning the 17 x 12 apc at 8100.  At this ground
setting, the uplines did not show any signs of sagging.  Maneuvers like the
top hat w/ ¾ up, or the figure 9 with 3/2 can be as tall as you like -
really cruising over the top.  Also, header is cut 1.0" shorter than stock.

What I noticed this weekend using the 15% fuel, which was not as prevalent
with the 25% fuel, is that when landing, I needed to lower the idle trim.
At launch, idle was 1900-2000.  All the ground running and throttling would
always come down and hit the idle speed.  However, after the full flight, I
needed to lower the trim or it would want to float on by.  

Jim W.

-----Original Message-----
From: Dean Pappas [mailto:d.pappas at kodeos.com] 
Sent: Monday, May 12, 2003 8:03 AM
To: discussion at nsrca.org
Subject: MINTOR

Hi Eric,

Dean here ... The 140 finds K&B 1-L plugs too hot, the "F"s have got to be
even moreso!

I found the same issue with needing a few minutes of running to loosen-up
adequately in order to be able to run at W.O.T.

It helps to fatten the mid-range with the idle mixture screw.

You will find it has a tremendous amount of authority over the mid-range
mixture, and can easily over-lean the engine there.

Dean

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