Author: "Terry Teer" <tbone39772@...> Time: Tue Mar 2, 2004 2:32 pm PST Link
Curious to know if there is a place were you can find out the weights
of various engine configurations? Lycoming, Subaru, Rotary and
such. I know that this is a sore subject for some but would like to
have a comparison on the choices. The reason I ask is I
am "considering the possibilities" of installing the Soob engine and
it is advertized at 400 plus pounds. This seems fairly heavy for a
fwf package but not sure. They compare that to a io360 comparison.
Is there any real "hard core" info?
Author: "Lance" <weatherby460mag@...> Time: Wed Mar 3, 2004 2:34 am PST Link
--- In vansairforce@yahoogroups.com, "Terry Teer" <tbone39772@y...>
wrote:
> Curious to know if there is a place were you can find out the
weights
> of various engine configurations? Lycoming, Subaru, Rotary and
> such. I know that this is a sore subject for some but would like
to
> have a comparison on the choices. The reason I ask is I
> am "considering the possibilities" of installing the Soob engine
and
> it is advertized at 400 plus pounds. This seems fairly heavy for a
> fwf package but not sure. They compare that to a io360
comparison.
> Is there any real "hard core" info?
The various manufacturers' websites and Yahoo groups have this info.
Remember to include the weight of the recommended prop in your
calculations (both weight and dollars). Once you take into account
the prop, things look a whole lot closer (or so I've found).
Author: LeGrande Harris <LGHARRIS@...> Time: Wed Mar 3, 2004 9:35 am PST Link
Terry,
Simple question, hard answer : ) Is the muffler included in the
weight? Starter? Engine mount? Vacuum pump? Etc.
I watched NSI swap out a Lyc with their engine and weigh both engines
with certified load cells.
The NSI engine (EJ 25) including the prop (absolutely everything FWF )
weighed 383 lbs. Wet, except they did top off the cooling system
after it was installed (there were radiator hoses leading into the
cockpit for a heater).
The 0-320 FWF weight, including a Hartzel CS prop was 419 lbs.
Wet weight, had a starter, vacuum pump, alternator, exhaust system,
control cables, baffles, etc. It had been running just a couple of
hours earlier. I believe the dry weight of the engine alone is apx 270
lbs.
Crossflow advertises 360 lbs wet for its four cylinder engine (no prop)
and 460 lbs wet for its 6 cylinder Subaru engine (again no prop). From
what I can tell the 360 lbs is FWF (mounts, muffler, etc. included,
just no prop).
The Eggenfellner engine is going to be similar in weight. Its
transmission is about 15 lbs heavier than NSI's and its flywheel is
also about 20 lbs heavier. What is interesting about it though, is that
it is mounted to a large metal plate at the forward end of the engine
and the radiators are up front.
Obviously the choice of props, alternators, turbo's, superchargers, etc
will affect the total weight but the numbers above should be good
enough for comparison purposes. I don't know of any good sources that
compare complete FWF weights.
LG Harris
> From: "Terry Teer" <tbone39772@...>
> Subject: Engine weights---FWF
>
> Curious to know if there is a place were you can find out the weights
> of various engine configurations? Lycoming, Subaru, Rotary and
> such. I know that this is a sore subject for some but would like to
> have a comparison on the choices. The reason I ask is I
> am "considering the possibilities" of installing the Soob engine and
> it is advertized at 400 plus pounds. This seems fairly heavy for a
> fwf package but not sure. They compare that to a io360 comparison.
> Is there any real "hard core" info?
Author: Gary Dunfee <garydunfee2003@...> Time: Wed Mar 3, 2004 4:32 pm PST Link
Lycoming engine weights, have a cut and past from a word doc I did when engine hunting. O320 D2A weight of my engine 255 lbs.
POWER SECTION
O = Opposed Cylinders
I = Fuel Injected
AE = Aerobatic
G = Geared
L = Left Hand Rotation
S = Supercharged
T = Turbocharged
320, 360 = 320 or 360 CU Inch disp DRY
WEIGHT SN *
O320 Axx Low compression 7.0 : 1 150 HP Conical Mount. 244 -27
O320 Bxx High compression 8.5 : 1 160 HP Conical Mount 255 -39
O320 Cxx Low compression (converted O320 B) 150 HP Conical Mount 255 -39
O320 Dxx High compression 8.5 : 1 160 HP Dyna Focal Mount type 1 255 -39
O320 Exx Low compression 7.0 : 1 150 HP Dyna Focal Mount type 1 244 -27
O320 Hxx High compression 9.0 : 1 160 HP Special Mount 253
IO320 Axx Low compression 7.0 : 1 150 HP Dyna Focal type 2
IO320 Bxx High compression 8.5 : 1 160 HP Dyna Focal type 2 259
IO320 Cxx High compression 8.5 : 1 160 HP Dyna Focal type 2 turbo ready 259
IO320 Dxx High compression 8.5 : 1 160 HP Dyna Focal type 1
IO320 Exx Low compression 7.0 : 1 150 HP Conical Mount -55
IO320 Fxx High compression 8.5 : 1 160 HP Dyna Focal type 1
O360 Axx High compression 8.5 : 1 180 HP Dyna Focal type ? 265
O360 Bxx Low compression 7.2 : 1 168 HP Dyna Focal type ?
O360 Cxx High compression 8.5 : 1 189 HP Conical Mount -36
O360 Dxx Low compression 7.2 : 1 168 HP Conical Mount -36
O360 Exx High compression 9.0 : 1 180 HP 269
* “A” After -xx (-39) sn = Wide Deck with thicker base flange, and larger bolt patern
NOSE /PROP SECTION
O320 x1x Controllable Propeller
O320 x2x Fixed Pitch Propeller
O320 x3x Controllable Propeller
ACCESSORY SECTION
O320 xxA Rear Mounted Accessories
O320 xxB-F Different Magnetos, oil sump, carburetor or ?
Refer to Van’s manual sec 11 pg 13, 17-24 for additional details
Constant Speed prop information sec 11 pg 14-16
LeGrande Harris <LGHARRIS@...> wrote:
Terry,
Simple question, hard answer : ) Is the muffler included in the
weight? Starter? Engine mount? Vacuum pump? Etc.
I watched NSI swap out a Lyc with their engine and weigh both engines
with certified load cells.
The NSI engine (EJ 25) including the prop (absolutely everything FWF )
weighed 383 lbs. Wet, except they did top off the cooling system
after it was installed (there were radiator hoses leading into the
cockpit for a heater).
The 0-320 FWF weight, including a Hartzel CS prop was 419 lbs.
Wet weight, had a starter, vacuum pump, alternator, exhaust system,
control cables, baffles, etc. It had been running just a couple of
hours earlier. I believe the dry weight of the engine alone is apx 270
lbs.
Crossflow advertises 360 lbs wet for its four cylinder engine (no prop)
and 460 lbs wet for its 6 cylinder Subaru engine (again no prop). From
what I can tell the 360 lbs is FWF (mounts, muffler, etc. included,
just no prop).
The Eggenfellner engine is going to be similar in weight. Its
transmission is about 15 lbs heavier than NSI's and its flywheel is
also about 20 lbs heavier. What is interesting about it though, is that
it is mounted to a large metal plate at the forward end of the engine
and the radiators are up front.
Obviously the choice of props, alternators, turbo's, superchargers, etc
will affect the total weight but the numbers above should be good
enough for comparison purposes. I don't know of any good sources that
compare complete FWF weights.
LG Harris
> From: "Terry Teer" <tbone39772@...>
> Subject: Engine weights---FWF
>
> Curious to know if there is a place were you can find out the weights
> of various engine configurations? Lycoming, Subaru, Rotary and
> such. I know that this is a sore subject for some but would like to
> have a comparison on the choices. The reason I ask is I
> am "considering the possibilities" of installing the Soob engine and
> it is advertized at 400 plus pounds. This seems fairly heavy for a
> fwf package but not sure. They compare that to a io360 comparison.
> Is there any real "hard core" info?
Online help on this group at:
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Gary Dunfee
RV6A N347GD
Beavercreek, Oregon 97004
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