Today's Message Index:
----------------------
1. 01:45 PM - RAM Heads Installed and Running (Hugh & Sherry MacKenzie)
2. 04:45 PM - Re: RAM Heads Installed and Running (gary)
3. 05:18 PM - Re: RAM Heads Installed and Running (Larry McFarland)
Message 1
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| Subject: | RAM Heads Installed and Running |
--> Stratus-List message posted by: "Hugh & Sherry MacKenzie" <hugs.mackenzie@sympatico.ca>
I finally got back into the air after having my heads re-done by RAM. Also,
installed an EGT gauge with probes in both pipes as well as changed the carb
main jets to 170 which seemed to be the size to use based on reports from
this list.
The engine is definitely running better now. I had some nagging minor
vibration after my rebuild earlier, but that seems to be gone. Note sure if
it is due to the heads or some belt adjustment or... I certainly feel more
confident now with the RAM heads.
For those interested, here are some temps I have seen. EGT at 4800-5000rpm
are around 1350-1375 deg.F. From what I have seen on the list, this seems to
be OK?? I was very pleased in that one flight was on a very hot day, around
28 deg.C. with a humidex of around 32. The head temp was 195deg.F. at
4800rpm and 200 at 5000rpm. The oil temp was 215 and 220 respectively. Today
was cooler, about 22 deg.C. and head temp only reached 185 and oil temp
200max. The head temp is based on the stratus supplied sensor screwed into
the head.
The spark plugs look pretty good, and I don't think I would want to go any
richer on the mixture. I have not changed the circlip on the needle from
it's original position.
On the first flight, the left side EGT was a little lower than the right,
between 20 to maybe 50deg.F. at various rpm's. My gauge is analog and has a
very small scale, so hard to see exactly how far apart they were. On the
second flight, I had a better view angle on the gauge and the temps seemed
to be about bang on at cruise. I will keep an eye on it to see if it is
really the temps or my view of the gauge.
As a side note, I have been running my engine with both ignitions on at all
times since my first flight 6 years ago. Never any ignition problems (knock
on wood). Only about 100 hours though in that time. Now that things seem to
be running well, hope to get a lot of flying in.
FYI, Hugh
601HDS
Message 2
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| Subject: | Re: RAM Heads Installed and Running |
--> Stratus-List message posted by: "gary" <FlyinK@Efortress.com>
where exactly are your egt's? after the elbow on the stock stratus exhaust?
how many inches from head or elbow?
thanks and congrats,
gary
----- Original Message -----
From: "Hugh & Sherry MacKenzie" <hugs.mackenzie@sympatico.ca>
Subject: Stratus-List: RAM Heads Installed and Running
> --> Stratus-List message posted by: "Hugh & Sherry MacKenzie"
<hugs.mackenzie@sympatico.ca>
>
> I finally got back into the air after having my heads re-done by RAM.
Also,
> installed an EGT gauge with probes in both pipes as well as changed the
carb
> main jets to 170 which seemed to be the size to use based on reports from
> this list.
>
> The engine is definitely running better now. I had some nagging minor
> vibration after my rebuild earlier, but that seems to be gone. Note sure
if
> it is due to the heads or some belt adjustment or... I certainly feel more
> confident now with the RAM heads.
>
> For those interested, here are some temps I have seen. EGT at 4800-5000rpm
> are around 1350-1375 deg.F. From what I have seen on the list, this seems
to
> be OK?? I was very pleased in that one flight was on a very hot day,
around
> 28 deg.C. with a humidex of around 32. The head temp was 195deg.F. at
> 4800rpm and 200 at 5000rpm. The oil temp was 215 and 220 respectively.
Today
> was cooler, about 22 deg.C. and head temp only reached 185 and oil temp
> 200max. The head temp is based on the stratus supplied sensor screwed into
> the head.
>
> The spark plugs look pretty good, and I don't think I would want to go any
> richer on the mixture. I have not changed the circlip on the needle from
> it's original position.
>
> On the first flight, the left side EGT was a little lower than the right,
> between 20 to maybe 50deg.F. at various rpm's. My gauge is analog and has
a
> very small scale, so hard to see exactly how far apart they were. On the
> second flight, I had a better view angle on the gauge and the temps seemed
> to be about bang on at cruise. I will keep an eye on it to see if it is
> really the temps or my view of the gauge.
>
> As a side note, I have been running my engine with both ignitions on at
all
> times since my first flight 6 years ago. Never any ignition problems
(knock
> on wood). Only about 100 hours though in that time. Now that things seem
to
> be running well, hope to get a lot of flying in.
>
> FYI, Hugh
>
> 601HDS
>
>
Message 3
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| Subject: | Re: RAM Heads Installed and Running |
--> Stratus-List message posted by: "Larry McFarland" <larrymc@qconline.com>
Good money spent well, Hugh,
Your temps look very good. Do you know what jets you have in the Bings?
When running both ignitions at the same time, do you have a way to know if
one quits, or is
the silence of the last one shutting down your first notice that they're
both off?
On the first flight of only 25-minutes, I lost my B-ignition and switched
fast enough to catch A without the prop stopping. That's why I'm curious.
Larry McFarland
601HDS
Do not archive
Subject: Stratus-List: RAM Heads Installed and Running
> --> Stratus-List message posted by: "Hugh & Sherry MacKenzie"
<hugs.mackenzie@sympatico.ca>
>
> I finally got back into the air after having my heads re-done by RAM.
Also,
> installed an EGT gauge with probes in both pipes as well as changed the
carb
> main jets to 170 which seemed to be the size to use based on reports from
> this list.
>
> For those interested, here are some temps I have seen. EGT at 4800-5000rpm
> are around 1350-1375 deg.F. From what I have seen on the list, this seems
to
> be OK?? I was very pleased in that one flight was on a very hot day,
around
> 28 deg.C. with a humidex of around 32. The head temp was 195deg.F. at
> 4800rpm and 200 at 5000rpm. The oil temp was 215 and 220 respectively.
Today
> was cooler, about 22 deg.C. and head temp only reached 185 and oil temp
> 200max. The head temp is based on the stratus supplied sensor screwed into
> the head.
>
> The spark plugs look pretty good, and I don't think I would want to go any
> richer on the mixture. I have not changed the circlip on the needle from
> it's original position.
>
> On the first flight, the left side EGT was a little lower than the right,
> between 20 to maybe 50deg.F. at various rpm's. My gauge is analog and has
a
> very small scale, so hard to see exactly how far apart they were. On the
> second flight, I had a better view angle on the gauge and the temps seemed
> to be about bang on at cruise. I will keep an eye on it to see if it is
> really the temps or my view of the gauge.
>
> As a side note, I have been running my engine with both ignitions on at
all
> times since my first flight 6 years ago. Never any ignition problems
(knock
> on wood). Only about 100 hours though in that time. Now that things seem
to
> be running well, hope to get a lot of flying in.
>
> FYI, Hugh
>
> 601HDS
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