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Date: Sun, 02 Oct 2011 22:27:03 -0400
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Subject: Engine data
From: Peter Sokolowski <air.peter@googlemail.com>
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Hello group,

I have first started my engine with a closed cowling and let it run for
about 10 minutes on ground. The data I have seen on my engine monitor are
not that clear to me and I want to ask the group about recommendations.
Engine is a Lycoming O360 F6A1 with a plenum which is sealed to 90 %. Air
inlet is also 1 inch smaller in diameter compared to the normal 360 cowling.
Exhaust is self made (data from CAFE foundation) - tuned - with a muffler
inside the cowling (4 in 2 to muffler).

1 . CHTs are all around 185 with the exeption of no. 3. It is also the one
where EGT is only 620 wheras all others are at 790. That should not be the
case and I am surching the reason. I know I have not written Celsius or
Fahrenheit - reason for that is I am not sure whether I have changed the
normal settings - for now it is the difference which makes me wonder (It
must be F).
I should mention, that I have a hole above no.3 which feeds the heat
exchange to the cabin
which is open at this point in time. Could that cause some kind of
interference ?

2. Engine cowling is quite close to the exhaust - what is the recommended
minimum distance?

3. In case I want to isolate the exhaust for heat isolation, is it better to
isolate the exhaust or to put some isolating material to the cowling ?

4. Any recomentations for a pull rod  for the Lancair 360 ? Finally is
decided that I need one and do not want to reinvent the wheel.

I hope the questions are clear and be happy for all indications.

Peter
LNC 360 (O360 F6A1, 95 %?)

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Hello group,<br><br>I have first started my engine with a closed cowling an=
d let it run for about 10 minutes on ground. The data I have seen on my eng=
ine monitor are not that clear to me and I want to ask the group about reco=
mmendations. <br>
Engine is a Lycoming O360 F6A1 with a plenum which is sealed to 90 %. Air i=
nlet is also 1 inch smaller in diameter compared to the normal 360 cowling.=
<br>Exhaust is self made (data from CAFE foundation) - tuned - with a muffl=
er inside the cowling (4 in 2 to muffler). <br>

<br>1 . CHTs are all around 185 with the exeption of no. 3. It is also the =
one where EGT is only 620 wheras all others are at 790. That should not be =
the case and I am surching the reason. I know I have not written Celsius or=
 Fahrenheit - reason for that is I am not sure whether I have changed the n=
ormal settings - for now it is the difference which makes me wonder (It mus=
t be F). <br>
I should mention, that I have a hole above no.3 which feeds the heat exchan=
ge to the cabin <br>which is open at this point in time. Could that cause s=
ome kind of interference ? <br><br>2. Engine cowling is quite close to the =
exhaust - what is the recommended minimum distance? <br>
<br>3. In case I want to isolate the exhaust for heat isolation, is it bett=
er to isolate the exhaust or to put some isolating material to the cowling =
?<br><br>4. Any recomentations for a pull rod=A0 for the Lancair 360 ? Fina=
lly is decided that I need one and do not want to reinvent the wheel.<br>
<br>I hope the questions are clear and be happy for all indications.<br><br=
>Peter <br>LNC 360 (O360 F6A1, 95 %?)<br><br>

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