The Murphy Builders Site

Posted: **Sun Feb 19, 2012 4:00 pm**

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

--- Drew Dalgleish <drewjan@cabletv.on.ca> wrote:

My prop is optimized for best climb and at full
throttle the engine will
over rev.

At 08:45 PM 10/8/2007 -0800, you wrote:
Pardon my ignorance, Drew, but why is running at
full throttle straight and
level at low altitudes hard on an engine?

-----Original Message-----
From: mike.davis@dcsol.com
[mailto:mike.davis@dcsol.com] On Behalf Of Drew
Dalgleish
Sent: Monday, October 08, 2007 9:50 AM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop

At 06:27 AM 10/8/2007 -0700, you wrote:
Just another question on the speed, Drew. Have you
done a full power run at
low altitudes and what was the rpm and speed? At
8000, that would be your
max cruise speed, since your engine can't do more
than 75% power at that
altitude.

Walter
Sorry Walter I haven't and I probably won't. To me
running at full throttle
straight and level at low altitudes is too hard on
the engine.
Drew

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Posted: **Sun Feb 19, 2012 4:00 pm**

I was asking earlier about anyone using the 76 X 56 Sensenich prop on an Elite or Rebel floatplane. If you are only getting 2480 on climb out, then it sounds like you need to go finer yet, maybe to 54 pitch. I don't think you want 2700 on climb, as then you would over rev on straight and level. What is your take-off or static rpm before you go into climb? And what is your flat out straight and level rpm with it at 76 X 56?

My target for the 360 (on floats in a Rebel or Elite) would be 2500 on take-off, 2550 on climb and 2700 -2750 on WOT straight and level.

Which amphibs do you have to get that 1580 empty weight?

Walter

----- Original Message -----
From: John W <chileman88@yahoo.com>
Date: Tuesday, October 9, 2007 7:36 am
Subject: RE: [rebel-builders] 360 Prop Elite question
To: rebel-builders@dcsol.com

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

--- Drew Dalgleish <drewjan@cabletv.on.ca> wrote:

My prop is optimized for best climb and at full
throttle the engine will
over rev.

At 08:45 PM 10/8/2007 -0800, you wrote:
Pardon my ignorance, Drew, but why is running at
full throttle straight and
level at low altitudes hard on an engine?

-----Original Message-----
From: mike.davis@dcsol.com
[mailto:mike.davis@dcsol.com] On Behalf Of Drew
Dalgleish
Sent: Monday, October 08, 2007 9:50 AM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop

At 06:27 AM 10/8/2007 -0700, you wrote:
done a full power run at
8000, that would be your
than 75% power at that
Sorry Walter I haven't and I probably won't. To me
running at full throttle
straight and level at low altitudes is too hard on
the engine.
Drew

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Posted: **Sun Feb 19, 2012 4:00 pm**

Hi Walter

Clamar amphibs

static 2400
t-off 2500
flat out 2700

running a tach check(digital) later today
will retest all above as well.

Tks
John W
--- WALTER KLATT <Walter.Klatt@shaw.ca> wrote:

I was asking earlier about anyone using the 76 X 56
Sensenich prop on an Elite or Rebel floatplane. If
you are only getting 2480 on climb out, then it
sounds like you need to go finer yet, maybe to 54
pitch. I don't think you want 2700 on climb, as then
you would over rev on straight and level. What is
your take-off or static rpm before you go into
climb? And what is your flat out straight and level
rpm with it at 76 X 56?

My target for the 360 (on floats in a Rebel or
Elite) would be 2500 on take-off, 2550 on climb and
2700 -2750 on WOT straight and level.

Which amphibs do you have to get that 1580 empty
weight?

Walter

----- Original Message -----
From: John W <chileman88@yahoo.com>
Date: Tuesday, October 9, 2007 7:36 am
Subject: RE: [rebel-builders] 360 Prop Elite
question
To: rebel-builders@dcsol.com

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs
weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

--- Drew Dalgleish <drewjan@cabletv.on.ca> wrote:

My prop is optimized for best climb and at full
throttle the engine will
over rev.

At 08:45 PM 10/8/2007 -0800, you wrote:
at
full throttle straight and [mailto:mike.davis@dcsol.com] On Behalf Of Drew
you
done a full power run at
At
8000, that would be your
more
than 75% power at that
me
running at full throttle
on
the engine.

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Posted: **Sun Feb 19, 2012 4:00 pm**

Just to be clear with my question, I consder take-off (intial) and static as the same thing, and climb rpm to be at your best climb rate speed. Sounds like your top speed rpm is OK.

I forget exactly what 2 inches of pitch gives on the Sensenich. I think it is around 30 or maybe 50 rpm. If that is the case, and your tach is accurate, then 76 X 54 might be what you need.

Walter

----- Original Message -----
From: John W <chileman88@yahoo.com>
Date: Tuesday, October 9, 2007 9:38 am
Subject: Re: RE: [rebel-builders] 360 Prop Elite question
To: rebel-builders@dcsol.com

Hi Walter

Clamar amphibs

static 2400
t-off 2500
flat out 2700

running a tach check(digital) later today
will retest all above as well.

Tks
John W
--- WALTER KLATT <Walter.Klatt@shaw.ca> wrote:

I was asking earlier about anyone using the 76 X 56
Sensenich prop on an Elite or Rebel floatplane. If
you are only getting 2480 on climb out, then it
sounds like you need to go finer yet, maybe to 54
pitch. I don't think you want 2700 on climb, as then
you would over rev on straight and level. What is
your take-off or static rpm before you go into
climb? And what is your flat out straight and level
rpm with it at 76 X 56?

My target for the 360 (on floats in a Rebel or
Elite) would be 2500 on take-off, 2550 on climb and
2700 -2750 on WOT straight and level.

Which amphibs do you have to get that 1580 empty
weight?

Walter

----- Original Message -----
From: John W <chileman88@yahoo.com>
Date: Tuesday, October 9, 2007 7:36 am
Subject: RE: [rebel-builders] 360 Prop Elite
question
To: rebel-builders@dcsol.com

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs
weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

--- Drew Dalgleish <drewjan@cabletv.on.ca> wrote:

at
you
At
more
me
on

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Posted: **Sun Feb 19, 2012 4:00 pm**

Hi John !

It sounds like your engine is not developing full power.
It should spin that prop faster....

It might be worth checking the size of your carb air box -
there are a few Elites that had O-320 airboxes fitted ...
They are too small, restricting intake, and causing vibration
too !

Other than that, and the usual checks of compression &
timing, you are right to check the tach with an optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------
On Tuesday 09 October 2007 14:36, John W wrote:

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

John,

612e has a bit over 40 hrs on an O-360 swinging a Sensenich 76-54
(76EM855-0-54). Hope to get it in the air soon - have no personal
experience with it yet. Will check the logs and flt test reports for RPM
data this evening.

Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of Bob
Patterson
Sent: Tuesday, October 09, 2007 10:34 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] 360 Prop Elite question

Hi John !

It sounds like your engine is not developing full power.
It should spin that prop faster....

It might be worth checking the size of your carb air box -
there are a few Elites that had O-320 airboxes fitted ...
They are too small, restricting intake, and causing vibration
too !

Other than that, and the usual checks of compression &
timing, you are right to check the tach with an optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------
On Tuesday 09 October 2007 14:36, John W wrote:

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

John,

Found conflicting data in the prop log book ... the model number stamped on
the prop is

76EM8S10-0-56 ... standard prop vs the written number in the log book as
indicated below for a climb prop.

I'll be running on MFC 2200 amphibs, may want to re-pitch it to the -54
(climb) as well.

Still looking for RPM data.

Cheers, Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Robert Andrews
Sent: Tuesday, October 09, 2007 6:19 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite question

John,

612e has a bit over 40 hrs on an O-360 swinging a Sensenich 76-54
(76EM855-0-54). Hope to get it in the air soon - have no personal
experience with it yet. Will check the logs and flt test reports for RPM
data this evening.

Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of Bob
Patterson
Sent: Tuesday, October 09, 2007 10:34 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] 360 Prop Elite question

Hi John !

It sounds like your engine is not developing full power.
It should spin that prop faster....

It might be worth checking the size of your carb air box -
there are a few Elites that had O-320 airboxes fitted ...
They are too small, restricting intake, and causing vibration
too !

Other than that, and the usual checks of compression &
timing, you are right to check the tach with an optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------
On Tuesday 09 October 2007 14:36, John W wrote:

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

Sorry John ... surprising to me, but found no RPM data in the log books.

Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Robert Andrews
Sent: Tuesday, October 09, 2007 7:10 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite question

John,

Found conflicting data in the prop log book ... the model number stamped on
the prop is

76EM8S10-0-56 ... standard prop vs the written number in the log book as
indicated below for a climb prop.

I'll be running on MFC 2200 amphibs, may want to re-pitch it to the -54
(climb) as well.

Still looking for RPM data.

Cheers, Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Robert Andrews
Sent: Tuesday, October 09, 2007 6:19 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite question

John,

612e has a bit over 40 hrs on an O-360 swinging a Sensenich 76-54
(76EM855-0-54). Hope to get it in the air soon - have no personal
experience with it yet. Will check the logs and flt test reports for RPM
data this evening.

Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of Bob
Patterson
Sent: Tuesday, October 09, 2007 10:34 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] 360 Prop Elite question

Hi John !

It sounds like your engine is not developing full power.
It should spin that prop faster....

It might be worth checking the size of your carb air box -
there are a few Elites that had O-320 airboxes fitted ...
They are too small, restricting intake, and causing vibration
too !

Other than that, and the usual checks of compression &
timing, you are right to check the tach with an optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------
On Tuesday 09 October 2007 14:36, John W wrote:

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

Bob, what cowl do you have, and what size spacer is on the prop?

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Robert
Andrews
Sent: Tuesday, October 09, 2007 7:10 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite question

John,

Found conflicting data in the prop log book ... the model number stamped on
the prop is

76EM8S10-0-56 ... standard prop vs the written number in the log book as
indicated below for a climb prop.

I'll be running on MFC 2200 amphibs, may want to re-pitch it to the -54
(climb) as well.

Still looking for RPM data.

Cheers, Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Robert Andrews
Sent: Tuesday, October 09, 2007 6:19 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite question

John,

612e has a bit over 40 hrs on an O-360 swinging a Sensenich 76-54
(76EM855-0-54). Hope to get it in the air soon - have no personal
experience with it yet. Will check the logs and flt test reports for RPM
data this evening.

Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of Bob
Patterson
Sent: Tuesday, October 09, 2007 10:34 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] 360 Prop Elite question

Hi John !

It sounds like your engine is not developing full power.
It should spin that prop faster....

It might be worth checking the size of your carb air box -
there are a few Elites that had O-320 airboxes fitted ...
They are too small, restricting intake, and causing vibration
too !

Other than that, and the usual checks of compression &
timing, you are right to check the tach with an optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------
On Tuesday 09 October 2007 14:36, John W wrote:

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

Speed cowl w/ a 2-7/16" SPM8S10 spacer.

Bob

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Walter Klatt
Sent: Tuesday, October 09, 2007 7:54 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite question

Bob, what cowl do you have, and what size spacer is on the prop?

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of Robert
Andrews
Sent: Tuesday, October 09, 2007 7:10 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite question

John,

Found conflicting data in the prop log book ... the model number stamped on
the prop is

76EM8S10-0-56 ... standard prop vs the written number in the log book as
indicated below for a climb prop.

I'll be running on MFC 2200 amphibs, may want to re-pitch it to the -54
(climb) as well.

Still looking for RPM data.

Cheers, Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of
Robert Andrews
Sent: Tuesday, October 09, 2007 6:19 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite question

John,

612e has a bit over 40 hrs on an O-360 swinging a Sensenich 76-54
(76EM855-0-54). Hope to get it in the air soon - have no personal
experience with it yet. Will check the logs and flt test reports for RPM
data this evening.

Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com]On Behalf Of Bob
Patterson
Sent: Tuesday, October 09, 2007 10:34 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] 360 Prop Elite question

Hi John !

It sounds like your engine is not developing full power.
It should spin that prop faster....

It might be worth checking the size of your carb air box -
there are a few Elites that had O-320 airboxes fitted ...
They are too small, restricting intake, and causing vibration
too !

Other than that, and the usual checks of compression &
timing, you are right to check the tach with an optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------
On Tuesday 09 October 2007 14:36, John W wrote:

Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

Hi Bob

I checked the tach with a digital last nite.
Static 2350
Climb 2470
WOT 2630

Suspect the airbox as it is small hoping to fit a
K&N style air filter as well
Engine checks out just out of annual.

Last nite flying alone at 2050 lbs 60deg F
lite breeze 5-8 mph 2 seconds on step 10-11 out of
the water. Still room for improvement in rpm's,
needless to say I am thrilled so far.

--- Bob Patterson <beep@sympatico.ca> wrote:

Hi John !

It sounds like your engine is not developing
full power.
It should spin that prop faster....

It might be worth checking the size of your carb
air box -
there are a few Elites that had O-320 airboxes
fitted ...
They are too small, restricting intake, and causing
vibration
too !

Other than that, and the usual checks of
compression &
timing, you are right to check the tach with an
optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other
course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca

http://bpatterson.qhealthbeauty.com

http://apatterson2.qhealthzone.com

http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------

On Tuesday 09 October 2007 14:36, John W wrote:
Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs
weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

Hi Robert

Thanks for the input. I think I will have the prop
twisted to 54- believe its 37.50 rpms per inch this
should get me 75 on climb.
My logs are at the shop need to check them as well.
How much does your Elite weigh?

JohnW
--- Robert Andrews <robert@montanasky.us> wrote:

Sorry John ... surprising to me, but found no RPM
data in the log books.

Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com
[mailto:mike.davis@dcsol.com]On Behalf Of
Robert Andrews
Sent: Tuesday, October 09, 2007 7:10 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite
question

John,

Found conflicting data in the prop log book ... the
model number stamped on
the prop is

76EM8S10-0-56 ... standard prop vs the written
number in the log book as
indicated below for a climb prop.

I'll be running on MFC 2200 amphibs, may want to
re-pitch it to the -54
(climb) as well.

Still looking for RPM data.

Cheers, Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com
[mailto:mike.davis@dcsol.com]On Behalf Of
Robert Andrews
Sent: Tuesday, October 09, 2007 6:19 PM
To: rebel-builders@dcsol.com
Subject: RE: [rebel-builders] 360 Prop Elite
question

John,

612e has a bit over 40 hrs on an O-360 swinging a
Sensenich 76-54
(76EM855-0-54). Hope to get it in the air soon -
have no personal
experience with it yet. Will check the logs and flt
test reports for RPM
data this evening.

Bob 612e

-----Original Message-----
From: mike.davis@dcsol.com
[mailto:mike.davis@dcsol.com]On Behalf Of Bob
Patterson
Sent: Tuesday, October 09, 2007 10:34 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] 360 Prop Elite
question

Hi John !

It sounds like your engine is not developing
full power.
It should spin that prop faster....

It might be worth checking the size of your carb
air box -
there are a few Elites that had O-320 airboxes
fitted ...
They are too small, restricting intake, and causing
vibration
too !

Other than that, and the usual checks of
compression &
timing, you are right to check the tach with an
optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other
course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca

http://bpatterson.qhealthbeauty.com

http://apatterson2.qhealthzone.com

http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------

On Tuesday 09 October 2007 14:36, John W wrote:
Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs
weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

I have also been talking on email to Ed at Sensenich about this, and he
recommends the 54 for our type of floatplane with the 360. He says the 56
should give 2400 static on the 180 hp, and 54 would give 2450. You gain 25
rpm for every inch of pitch.

That's pretty good performance, though, given your weight.

Thanks a lot for the numbers. That helped a lot. Now I have to decide
whether to go 54 or 52 if I go Sensenich. I am wondering what high density
altitude (8000) will do. I think that costs an extra 50 rpm too.

Walter

-----Original Message-----
From: mike.davis@dcsol.com [mailto:mike.davis@dcsol.com] On Behalf Of John W
Sent: Wednesday, October 10, 2007 6:10 AM
To: rebel-builders@dcsol.com
Subject: Re: [rebel-builders] 360 Prop Elite question

Hi Bob

I checked the tach with a digital last nite.
Static 2350
Climb 2470
WOT 2630

Suspect the airbox as it is small hoping to fit a
K&N style air filter as well
Engine checks out just out of annual.

Last nite flying alone at 2050 lbs 60deg F
lite breeze 5-8 mph 2 seconds on step 10-11 out of
the water. Still room for improvement in rpm's,
needless to say I am thrilled so far.

--- Bob Patterson <beep@sympatico.ca> wrote:

Hi John !

It sounds like your engine is not developing
full power.
It should spin that prop faster....

It might be worth checking the size of your carb
air box -
there are a few Elites that had O-320 airboxes
fitted ...
They are too small, restricting intake, and causing
vibration
too !

Other than that, and the usual checks of
compression &
timing, you are right to check the tach with an
optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other
course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca

http://bpatterson.qhealthbeauty.com

http://apatterson2.qhealthzone.com

http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------

On Tuesday 09 October 2007 14:36, John W wrote:
Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs
weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Posted: **Sun Feb 19, 2012 4:00 pm**

If you removed the air box or maybe even just the air filter and your
static rpm increased that would let you know if the air box is the culprit.

At 06:10 AM 10/10/2007 -0700, you wrote:

Hi Bob

I checked the tach with a digital last nite.
Static 2350
Climb 2470
WOT 2630

Suspect the airbox as it is small hoping to fit a
K&N style air filter as well
Engine checks out just out of annual.

Last nite flying alone at 2050 lbs 60deg F
lite breeze 5-8 mph 2 seconds on step 10-11 out of
the water. Still room for improvement in rpm's,
needless to say I am thrilled so far.

--- Bob Patterson <beep@sympatico.ca> wrote:

Hi John !

It sounds like your engine is not developing
full power.
It should spin that prop faster....

It might be worth checking the size of your carb
air box -
there are a few Elites that had O-320 airboxes
fitted ...
They are too small, restricting intake, and causing
vibration
too !

Other than that, and the usual checks of
compression &
timing, you are right to check the tach with an
optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other
course is to go
to a 54 inch pitch ...

--
......bobp
http://www.prosumers.ca

http://bpatterson.qhealthbeauty.com

http://apatterson2.qhealthzone.com

http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------
On Tuesday 09 October 2007 14:36, John W wrote:
Hi Guys any help is appreciated;
I am running a 0-360 on my Elite with amphibs
weight
1580 lbs.
I had the 76 Sensenich repitched to 56. I am only
turning up 2480 rpm in climb.
Any suggestions to get to the 2700 for 180 hp
I am often operating at 2200 lbs .

Tks

John W

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Drew

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Posted: **Sun Feb 19, 2012 4:00 pm**

Gonna check it tonite-
anybody used the Donaldson filter in place of the
Bracket?

--- Drew Dalgleish <drewjan@cabletv.on.ca> wrote:

If you removed the air box or maybe even just the
air filter and your
static rpm increased that would let you know if the
air box is the culprit.

At 06:10 AM 10/10/2007 -0700, you wrote:
Hi Bob

I checked the tach with a digital last nite.
Static 2350
Climb 2470
WOT 2630

Suspect the airbox as it is small hoping to fit a
K&N style air filter as well
Engine checks out just out of annual.

Last nite flying alone at 2050 lbs 60deg F
lite breeze 5-8 mph 2 seconds on step 10-11 out of
the water. Still room for improvement in rpm's,
needless to say I am thrilled so far.

--- Bob Patterson <beep@sympatico.ca> wrote:

Hi John !

It sounds like your engine is not developing
full power.
It should spin that prop faster....

It might be worth checking the size of your
carb
air box -
there are a few Elites that had O-320 airboxes
fitted ...
They are too small, restricting intake, and
causing
vibration
too !

Other than that, and the usual checks of
compression &
timing, you are right to check the tach with an
optical one -
again, there have been a few bad tachs found.

If all that checks out, then your only other
course is to go
to a 54 inch pitch ...

--
......bobp

http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com

http://apatterson2.qhealthzone.com

http://apatterson2.ordermygift.com

-------------------------------orig.-------------------------
On Tuesday 09 October 2007 14:36, John W wrote: weight
only

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Drew

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