Honda I-4 smoothness
#61
Guest
Posts: n/a
Re: Honda I-4 smoothness
"TeGGeR®" wrote in message...
> This particular engine was originally designed for installation in a
> military tank. It seems the diesel angine in the tank was too heavy for
> a regular starter motor, so the Russians designed a compact air-cooled
> V4 to start it instead. A regular electric starter motor started the V4,
> the the V4 started the diesel engine.
John Deere's larger two-cylinder diesel tractors from the 50's era (e.g. -
models 720, 730, etc.) had a small pony motor to start the diesel engine.
Same deal, electric start of a four-stroke gasser V-4, rev it up, then
clutch it to the big two-cylinder diesel to fire up the big motor. It's
really quite a show for the uninitiated. Check 'em out if you run across an
old tractor show in your neighborhood...
> Needless to say, there was zero expenditure of development time on NVH.
> The engine was reportedly very harsh when used in the car.
I don't recall the JD V-4 being rough-running, but it's hard to tell when
you're on one of those tractors. It sure sounded smooth, especially
compared to the big two-cylinder it fired up.
> This particular engine was originally designed for installation in a
> military tank. It seems the diesel angine in the tank was too heavy for
> a regular starter motor, so the Russians designed a compact air-cooled
> V4 to start it instead. A regular electric starter motor started the V4,
> the the V4 started the diesel engine.
John Deere's larger two-cylinder diesel tractors from the 50's era (e.g. -
models 720, 730, etc.) had a small pony motor to start the diesel engine.
Same deal, electric start of a four-stroke gasser V-4, rev it up, then
clutch it to the big two-cylinder diesel to fire up the big motor. It's
really quite a show for the uninitiated. Check 'em out if you run across an
old tractor show in your neighborhood...
> Needless to say, there was zero expenditure of development time on NVH.
> The engine was reportedly very harsh when used in the car.
I don't recall the JD V-4 being rough-running, but it's hard to tell when
you're on one of those tractors. It sure sounded smooth, especially
compared to the big two-cylinder it fired up.
#62
Guest
Posts: n/a
Re: Honda I-4 smoothness
"TeGGeR®" wrote in message...
> This particular engine was originally designed for installation in a
> military tank. It seems the diesel angine in the tank was too heavy for
> a regular starter motor, so the Russians designed a compact air-cooled
> V4 to start it instead. A regular electric starter motor started the V4,
> the the V4 started the diesel engine.
John Deere's larger two-cylinder diesel tractors from the 50's era (e.g. -
models 720, 730, etc.) had a small pony motor to start the diesel engine.
Same deal, electric start of a four-stroke gasser V-4, rev it up, then
clutch it to the big two-cylinder diesel to fire up the big motor. It's
really quite a show for the uninitiated. Check 'em out if you run across an
old tractor show in your neighborhood...
> Needless to say, there was zero expenditure of development time on NVH.
> The engine was reportedly very harsh when used in the car.
I don't recall the JD V-4 being rough-running, but it's hard to tell when
you're on one of those tractors. It sure sounded smooth, especially
compared to the big two-cylinder it fired up.
> This particular engine was originally designed for installation in a
> military tank. It seems the diesel angine in the tank was too heavy for
> a regular starter motor, so the Russians designed a compact air-cooled
> V4 to start it instead. A regular electric starter motor started the V4,
> the the V4 started the diesel engine.
John Deere's larger two-cylinder diesel tractors from the 50's era (e.g. -
models 720, 730, etc.) had a small pony motor to start the diesel engine.
Same deal, electric start of a four-stroke gasser V-4, rev it up, then
clutch it to the big two-cylinder diesel to fire up the big motor. It's
really quite a show for the uninitiated. Check 'em out if you run across an
old tractor show in your neighborhood...
> Needless to say, there was zero expenditure of development time on NVH.
> The engine was reportedly very harsh when used in the car.
I don't recall the JD V-4 being rough-running, but it's hard to tell when
you're on one of those tractors. It sure sounded smooth, especially
compared to the big two-cylinder it fired up.
#63
Guest
Posts: n/a
Re: Honda I-4 smoothness
"TeGGeR®" wrote in message...
> This particular engine was originally designed for installation in a
> military tank. It seems the diesel angine in the tank was too heavy for
> a regular starter motor, so the Russians designed a compact air-cooled
> V4 to start it instead. A regular electric starter motor started the V4,
> the the V4 started the diesel engine.
John Deere's larger two-cylinder diesel tractors from the 50's era (e.g. -
models 720, 730, etc.) had a small pony motor to start the diesel engine.
Same deal, electric start of a four-stroke gasser V-4, rev it up, then
clutch it to the big two-cylinder diesel to fire up the big motor. It's
really quite a show for the uninitiated. Check 'em out if you run across an
old tractor show in your neighborhood...
> Needless to say, there was zero expenditure of development time on NVH.
> The engine was reportedly very harsh when used in the car.
I don't recall the JD V-4 being rough-running, but it's hard to tell when
you're on one of those tractors. It sure sounded smooth, especially
compared to the big two-cylinder it fired up.
> This particular engine was originally designed for installation in a
> military tank. It seems the diesel angine in the tank was too heavy for
> a regular starter motor, so the Russians designed a compact air-cooled
> V4 to start it instead. A regular electric starter motor started the V4,
> the the V4 started the diesel engine.
John Deere's larger two-cylinder diesel tractors from the 50's era (e.g. -
models 720, 730, etc.) had a small pony motor to start the diesel engine.
Same deal, electric start of a four-stroke gasser V-4, rev it up, then
clutch it to the big two-cylinder diesel to fire up the big motor. It's
really quite a show for the uninitiated. Check 'em out if you run across an
old tractor show in your neighborhood...
> Needless to say, there was zero expenditure of development time on NVH.
> The engine was reportedly very harsh when used in the car.
I don't recall the JD V-4 being rough-running, but it's hard to tell when
you're on one of those tractors. It sure sounded smooth, especially
compared to the big two-cylinder it fired up.
#64
Guest
Posts: n/a
Re: Honda I-4 smoothness
"mrdancer" <mrdancer@atmchsi.com> wrote in
news:OGrJg.161545$1i1.101737@attbi_s72:
> "TeGGeR®" wrote in message...
>> This particular engine was originally designed for installation in a
>> military tank. It seems the diesel angine in the tank was too heavy
>> for a regular starter motor, so the Russians designed a compact
>> air-cooled V4 to start it instead. A regular electric starter motor
>> started the V4, the the V4 started the diesel engine.
>
> John Deere's larger two-cylinder diesel tractors from the 50's era
> (e.g. - models 720, 730, etc.) had a small pony motor to start the
> diesel engine. Same deal, electric start of a four-stroke gasser V-4,
Who made that V4?
--
TeGGeR®
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
news:OGrJg.161545$1i1.101737@attbi_s72:
> "TeGGeR®" wrote in message...
>> This particular engine was originally designed for installation in a
>> military tank. It seems the diesel angine in the tank was too heavy
>> for a regular starter motor, so the Russians designed a compact
>> air-cooled V4 to start it instead. A regular electric starter motor
>> started the V4, the the V4 started the diesel engine.
>
> John Deere's larger two-cylinder diesel tractors from the 50's era
> (e.g. - models 720, 730, etc.) had a small pony motor to start the
> diesel engine. Same deal, electric start of a four-stroke gasser V-4,
Who made that V4?
--
TeGGeR®
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#65
Guest
Posts: n/a
Re: Honda I-4 smoothness
"mrdancer" <mrdancer@atmchsi.com> wrote in
news:OGrJg.161545$1i1.101737@attbi_s72:
> "TeGGeR®" wrote in message...
>> This particular engine was originally designed for installation in a
>> military tank. It seems the diesel angine in the tank was too heavy
>> for a regular starter motor, so the Russians designed a compact
>> air-cooled V4 to start it instead. A regular electric starter motor
>> started the V4, the the V4 started the diesel engine.
>
> John Deere's larger two-cylinder diesel tractors from the 50's era
> (e.g. - models 720, 730, etc.) had a small pony motor to start the
> diesel engine. Same deal, electric start of a four-stroke gasser V-4,
Who made that V4?
--
TeGGeR®
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
news:OGrJg.161545$1i1.101737@attbi_s72:
> "TeGGeR®" wrote in message...
>> This particular engine was originally designed for installation in a
>> military tank. It seems the diesel angine in the tank was too heavy
>> for a regular starter motor, so the Russians designed a compact
>> air-cooled V4 to start it instead. A regular electric starter motor
>> started the V4, the the V4 started the diesel engine.
>
> John Deere's larger two-cylinder diesel tractors from the 50's era
> (e.g. - models 720, 730, etc.) had a small pony motor to start the
> diesel engine. Same deal, electric start of a four-stroke gasser V-4,
Who made that V4?
--
TeGGeR®
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#66
Guest
Posts: n/a
Re: Honda I-4 smoothness
"mrdancer" <mrdancer@atmchsi.com> wrote in
news:OGrJg.161545$1i1.101737@attbi_s72:
> "TeGGeR®" wrote in message...
>> This particular engine was originally designed for installation in a
>> military tank. It seems the diesel angine in the tank was too heavy
>> for a regular starter motor, so the Russians designed a compact
>> air-cooled V4 to start it instead. A regular electric starter motor
>> started the V4, the the V4 started the diesel engine.
>
> John Deere's larger two-cylinder diesel tractors from the 50's era
> (e.g. - models 720, 730, etc.) had a small pony motor to start the
> diesel engine. Same deal, electric start of a four-stroke gasser V-4,
Who made that V4?
--
TeGGeR®
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
news:OGrJg.161545$1i1.101737@attbi_s72:
> "TeGGeR®" wrote in message...
>> This particular engine was originally designed for installation in a
>> military tank. It seems the diesel angine in the tank was too heavy
>> for a regular starter motor, so the Russians designed a compact
>> air-cooled V4 to start it instead. A regular electric starter motor
>> started the V4, the the V4 started the diesel engine.
>
> John Deere's larger two-cylinder diesel tractors from the 50's era
> (e.g. - models 720, 730, etc.) had a small pony motor to start the
> diesel engine. Same deal, electric start of a four-stroke gasser V-4,
Who made that V4?
--
TeGGeR®
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
#67
Guest
Posts: n/a
Re: Honda I-4 smoothness
"TeGGeR®" <tegger@tegger.c0m> wrote in message
news:Xns982FE7E8AC0C7tegger@207.14.116.130...
> "mrdancer" wrote in
> news:OGrJg.161545$1i1.101737@attbi_s72:
>
> > "TeGGeR®" wrote in message...
> >> This particular engine was originally designed for installation in a
> >> military tank. It seems the diesel angine in the tank was too heavy
> >> for a regular starter motor, so the Russians designed a compact
> >> air-cooled V4 to start it instead. A regular electric starter motor
> >> started the V4, the the V4 started the diesel engine.
> >
> > John Deere's larger two-cylinder diesel tractors from the 50's era
> > (e.g. - models 720, 730, etc.) had a small pony motor to start the
> > diesel engine. Same deal, electric start of a four-stroke gasser V-4,
>
>
>
> Who made that V4?
Not sure, but I think JD made it. You might do a google search for john
deere pony motor and see what you come up with... here's a couple to start
with:
http://petcaretips.net/history-john-deere.html
http://petcaretips.net/john-deere-720.html
http://www.tractordata.com/td/td44.html
I believe they also made some 2-cylinder (gasoline, opposed) pony motors for
some of their earlier diesel tractors.
news:Xns982FE7E8AC0C7tegger@207.14.116.130...
> "mrdancer" wrote in
> news:OGrJg.161545$1i1.101737@attbi_s72:
>
> > "TeGGeR®" wrote in message...
> >> This particular engine was originally designed for installation in a
> >> military tank. It seems the diesel angine in the tank was too heavy
> >> for a regular starter motor, so the Russians designed a compact
> >> air-cooled V4 to start it instead. A regular electric starter motor
> >> started the V4, the the V4 started the diesel engine.
> >
> > John Deere's larger two-cylinder diesel tractors from the 50's era
> > (e.g. - models 720, 730, etc.) had a small pony motor to start the
> > diesel engine. Same deal, electric start of a four-stroke gasser V-4,
>
>
>
> Who made that V4?
Not sure, but I think JD made it. You might do a google search for john
deere pony motor and see what you come up with... here's a couple to start
with:
http://petcaretips.net/history-john-deere.html
http://petcaretips.net/john-deere-720.html
http://www.tractordata.com/td/td44.html
I believe they also made some 2-cylinder (gasoline, opposed) pony motors for
some of their earlier diesel tractors.
#68
Guest
Posts: n/a
Re: Honda I-4 smoothness
"TeGGeR®" <tegger@tegger.c0m> wrote in message
news:Xns982FE7E8AC0C7tegger@207.14.116.130...
> "mrdancer" wrote in
> news:OGrJg.161545$1i1.101737@attbi_s72:
>
> > "TeGGeR®" wrote in message...
> >> This particular engine was originally designed for installation in a
> >> military tank. It seems the diesel angine in the tank was too heavy
> >> for a regular starter motor, so the Russians designed a compact
> >> air-cooled V4 to start it instead. A regular electric starter motor
> >> started the V4, the the V4 started the diesel engine.
> >
> > John Deere's larger two-cylinder diesel tractors from the 50's era
> > (e.g. - models 720, 730, etc.) had a small pony motor to start the
> > diesel engine. Same deal, electric start of a four-stroke gasser V-4,
>
>
>
> Who made that V4?
Not sure, but I think JD made it. You might do a google search for john
deere pony motor and see what you come up with... here's a couple to start
with:
http://petcaretips.net/history-john-deere.html
http://petcaretips.net/john-deere-720.html
http://www.tractordata.com/td/td44.html
I believe they also made some 2-cylinder (gasoline, opposed) pony motors for
some of their earlier diesel tractors.
news:Xns982FE7E8AC0C7tegger@207.14.116.130...
> "mrdancer" wrote in
> news:OGrJg.161545$1i1.101737@attbi_s72:
>
> > "TeGGeR®" wrote in message...
> >> This particular engine was originally designed for installation in a
> >> military tank. It seems the diesel angine in the tank was too heavy
> >> for a regular starter motor, so the Russians designed a compact
> >> air-cooled V4 to start it instead. A regular electric starter motor
> >> started the V4, the the V4 started the diesel engine.
> >
> > John Deere's larger two-cylinder diesel tractors from the 50's era
> > (e.g. - models 720, 730, etc.) had a small pony motor to start the
> > diesel engine. Same deal, electric start of a four-stroke gasser V-4,
>
>
>
> Who made that V4?
Not sure, but I think JD made it. You might do a google search for john
deere pony motor and see what you come up with... here's a couple to start
with:
http://petcaretips.net/history-john-deere.html
http://petcaretips.net/john-deere-720.html
http://www.tractordata.com/td/td44.html
I believe they also made some 2-cylinder (gasoline, opposed) pony motors for
some of their earlier diesel tractors.
#69
Guest
Posts: n/a
Re: Honda I-4 smoothness
"TeGGeR®" <tegger@tegger.c0m> wrote in message
news:Xns982FE7E8AC0C7tegger@207.14.116.130...
> "mrdancer" wrote in
> news:OGrJg.161545$1i1.101737@attbi_s72:
>
> > "TeGGeR®" wrote in message...
> >> This particular engine was originally designed for installation in a
> >> military tank. It seems the diesel angine in the tank was too heavy
> >> for a regular starter motor, so the Russians designed a compact
> >> air-cooled V4 to start it instead. A regular electric starter motor
> >> started the V4, the the V4 started the diesel engine.
> >
> > John Deere's larger two-cylinder diesel tractors from the 50's era
> > (e.g. - models 720, 730, etc.) had a small pony motor to start the
> > diesel engine. Same deal, electric start of a four-stroke gasser V-4,
>
>
>
> Who made that V4?
Not sure, but I think JD made it. You might do a google search for john
deere pony motor and see what you come up with... here's a couple to start
with:
http://petcaretips.net/history-john-deere.html
http://petcaretips.net/john-deere-720.html
http://www.tractordata.com/td/td44.html
I believe they also made some 2-cylinder (gasoline, opposed) pony motors for
some of their earlier diesel tractors.
news:Xns982FE7E8AC0C7tegger@207.14.116.130...
> "mrdancer" wrote in
> news:OGrJg.161545$1i1.101737@attbi_s72:
>
> > "TeGGeR®" wrote in message...
> >> This particular engine was originally designed for installation in a
> >> military tank. It seems the diesel angine in the tank was too heavy
> >> for a regular starter motor, so the Russians designed a compact
> >> air-cooled V4 to start it instead. A regular electric starter motor
> >> started the V4, the the V4 started the diesel engine.
> >
> > John Deere's larger two-cylinder diesel tractors from the 50's era
> > (e.g. - models 720, 730, etc.) had a small pony motor to start the
> > diesel engine. Same deal, electric start of a four-stroke gasser V-4,
>
>
>
> Who made that V4?
Not sure, but I think JD made it. You might do a google search for john
deere pony motor and see what you come up with... here's a couple to start
with:
http://petcaretips.net/history-john-deere.html
http://petcaretips.net/john-deere-720.html
http://www.tractordata.com/td/td44.html
I believe they also made some 2-cylinder (gasoline, opposed) pony motors for
some of their earlier diesel tractors.
#70
Guest
Posts: n/a
Re: Honda I-4 smoothness
Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
very well balanced and have a lower center of gravity. I don't know why
more cars don't use these.
Many small aircraft engines are horizontally opposed and are made by
Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
ones are actually made by parent company Fuji Heavy Industries come to think
of it and are very durable in aircraft or in Subarus.
TL
"High Tech Misfit" <me@privacy.net> wrote in message
news:18jssgu03all3$.dlg@hightech.misfit...
> Matt Ion wrote:
>
>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>> had
>> one, it was an incredibly durable engine. Lowers the center of gravity a
>> lot
>> too, for great stability. Dunno if Subaru is still using them
>
> I'm pretty sure Subaru still uses flat-4's.
very well balanced and have a lower center of gravity. I don't know why
more cars don't use these.
Many small aircraft engines are horizontally opposed and are made by
Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
ones are actually made by parent company Fuji Heavy Industries come to think
of it and are very durable in aircraft or in Subarus.
TL
"High Tech Misfit" <me@privacy.net> wrote in message
news:18jssgu03all3$.dlg@hightech.misfit...
> Matt Ion wrote:
>
>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>> had
>> one, it was an incredibly durable engine. Lowers the center of gravity a
>> lot
>> too, for great stability. Dunno if Subaru is still using them
>
> I'm pretty sure Subaru still uses flat-4's.
#71
Guest
Posts: n/a
Re: Honda I-4 smoothness
Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
very well balanced and have a lower center of gravity. I don't know why
more cars don't use these.
Many small aircraft engines are horizontally opposed and are made by
Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
ones are actually made by parent company Fuji Heavy Industries come to think
of it and are very durable in aircraft or in Subarus.
TL
"High Tech Misfit" <me@privacy.net> wrote in message
news:18jssgu03all3$.dlg@hightech.misfit...
> Matt Ion wrote:
>
>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>> had
>> one, it was an incredibly durable engine. Lowers the center of gravity a
>> lot
>> too, for great stability. Dunno if Subaru is still using them
>
> I'm pretty sure Subaru still uses flat-4's.
very well balanced and have a lower center of gravity. I don't know why
more cars don't use these.
Many small aircraft engines are horizontally opposed and are made by
Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
ones are actually made by parent company Fuji Heavy Industries come to think
of it and are very durable in aircraft or in Subarus.
TL
"High Tech Misfit" <me@privacy.net> wrote in message
news:18jssgu03all3$.dlg@hightech.misfit...
> Matt Ion wrote:
>
>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>> had
>> one, it was an incredibly durable engine. Lowers the center of gravity a
>> lot
>> too, for great stability. Dunno if Subaru is still using them
>
> I'm pretty sure Subaru still uses flat-4's.
#72
Guest
Posts: n/a
Re: Honda I-4 smoothness
Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
very well balanced and have a lower center of gravity. I don't know why
more cars don't use these.
Many small aircraft engines are horizontally opposed and are made by
Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
ones are actually made by parent company Fuji Heavy Industries come to think
of it and are very durable in aircraft or in Subarus.
TL
"High Tech Misfit" <me@privacy.net> wrote in message
news:18jssgu03all3$.dlg@hightech.misfit...
> Matt Ion wrote:
>
>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>> had
>> one, it was an incredibly durable engine. Lowers the center of gravity a
>> lot
>> too, for great stability. Dunno if Subaru is still using them
>
> I'm pretty sure Subaru still uses flat-4's.
very well balanced and have a lower center of gravity. I don't know why
more cars don't use these.
Many small aircraft engines are horizontally opposed and are made by
Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
ones are actually made by parent company Fuji Heavy Industries come to think
of it and are very durable in aircraft or in Subarus.
TL
"High Tech Misfit" <me@privacy.net> wrote in message
news:18jssgu03all3$.dlg@hightech.misfit...
> Matt Ion wrote:
>
>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>> had
>> one, it was an incredibly durable engine. Lowers the center of gravity a
>> lot
>> too, for great stability. Dunno if Subaru is still using them
>
> I'm pretty sure Subaru still uses flat-4's.
#73
Guest
Posts: n/a
Re: Honda I-4 smoothness
Tom Levigne wrote:
> Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
> very well balanced and have a lower center of gravity. I don't know why
> more cars don't use these.
lower c.g. may be good [but minor - and in the case of a subaru,
somewhat academic]. from what i understand however, they're not
necessarily better balanced than straight 4's - they're still subject to
second order free moments. only 6's are inherently balanced, but that's
the same for straight or flat. no real advantage plus higher cost means
they're not worth bothering with.
>
> Many small aircraft engines are horizontally opposed and are made by
> Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
> ones are actually made by parent company Fuji Heavy Industries come to think
> of it and are very durable in aircraft or in Subarus.
>
> TL
>
>
>
>
>
>
>
>
> "High Tech Misfit" <me@privacy.net> wrote in message
> news:18jssgu03all3$.dlg@hightech.misfit...
>> Matt Ion wrote:
>>
>>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>>> had
>>> one, it was an incredibly durable engine. Lowers the center of gravity a
>>> lot
>>> too, for great stability. Dunno if Subaru is still using them
>> I'm pretty sure Subaru still uses flat-4's.
>
>
> Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
> very well balanced and have a lower center of gravity. I don't know why
> more cars don't use these.
lower c.g. may be good [but minor - and in the case of a subaru,
somewhat academic]. from what i understand however, they're not
necessarily better balanced than straight 4's - they're still subject to
second order free moments. only 6's are inherently balanced, but that's
the same for straight or flat. no real advantage plus higher cost means
they're not worth bothering with.
>
> Many small aircraft engines are horizontally opposed and are made by
> Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
> ones are actually made by parent company Fuji Heavy Industries come to think
> of it and are very durable in aircraft or in Subarus.
>
> TL
>
>
>
>
>
>
>
>
> "High Tech Misfit" <me@privacy.net> wrote in message
> news:18jssgu03all3$.dlg@hightech.misfit...
>> Matt Ion wrote:
>>
>>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>>> had
>>> one, it was an incredibly durable engine. Lowers the center of gravity a
>>> lot
>>> too, for great stability. Dunno if Subaru is still using them
>> I'm pretty sure Subaru still uses flat-4's.
>
>
#74
Guest
Posts: n/a
Re: Honda I-4 smoothness
Tom Levigne wrote:
> Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
> very well balanced and have a lower center of gravity. I don't know why
> more cars don't use these.
lower c.g. may be good [but minor - and in the case of a subaru,
somewhat academic]. from what i understand however, they're not
necessarily better balanced than straight 4's - they're still subject to
second order free moments. only 6's are inherently balanced, but that's
the same for straight or flat. no real advantage plus higher cost means
they're not worth bothering with.
>
> Many small aircraft engines are horizontally opposed and are made by
> Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
> ones are actually made by parent company Fuji Heavy Industries come to think
> of it and are very durable in aircraft or in Subarus.
>
> TL
>
>
>
>
>
>
>
>
> "High Tech Misfit" <me@privacy.net> wrote in message
> news:18jssgu03all3$.dlg@hightech.misfit...
>> Matt Ion wrote:
>>
>>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>>> had
>>> one, it was an incredibly durable engine. Lowers the center of gravity a
>>> lot
>>> too, for great stability. Dunno if Subaru is still using them
>> I'm pretty sure Subaru still uses flat-4's.
>
>
> Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
> very well balanced and have a lower center of gravity. I don't know why
> more cars don't use these.
lower c.g. may be good [but minor - and in the case of a subaru,
somewhat academic]. from what i understand however, they're not
necessarily better balanced than straight 4's - they're still subject to
second order free moments. only 6's are inherently balanced, but that's
the same for straight or flat. no real advantage plus higher cost means
they're not worth bothering with.
>
> Many small aircraft engines are horizontally opposed and are made by
> Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
> ones are actually made by parent company Fuji Heavy Industries come to think
> of it and are very durable in aircraft or in Subarus.
>
> TL
>
>
>
>
>
>
>
>
> "High Tech Misfit" <me@privacy.net> wrote in message
> news:18jssgu03all3$.dlg@hightech.misfit...
>> Matt Ion wrote:
>>
>>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>>> had
>>> one, it was an incredibly durable engine. Lowers the center of gravity a
>>> lot
>>> too, for great stability. Dunno if Subaru is still using them
>> I'm pretty sure Subaru still uses flat-4's.
>
>
#75
Guest
Posts: n/a
Re: Honda I-4 smoothness
Tom Levigne wrote:
> Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
> very well balanced and have a lower center of gravity. I don't know why
> more cars don't use these.
lower c.g. may be good [but minor - and in the case of a subaru,
somewhat academic]. from what i understand however, they're not
necessarily better balanced than straight 4's - they're still subject to
second order free moments. only 6's are inherently balanced, but that's
the same for straight or flat. no real advantage plus higher cost means
they're not worth bothering with.
>
> Many small aircraft engines are horizontally opposed and are made by
> Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
> ones are actually made by parent company Fuji Heavy Industries come to think
> of it and are very durable in aircraft or in Subarus.
>
> TL
>
>
>
>
>
>
>
>
> "High Tech Misfit" <me@privacy.net> wrote in message
> news:18jssgu03all3$.dlg@hightech.misfit...
>> Matt Ion wrote:
>>
>>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>>> had
>>> one, it was an incredibly durable engine. Lowers the center of gravity a
>>> lot
>>> too, for great stability. Dunno if Subaru is still using them
>> I'm pretty sure Subaru still uses flat-4's.
>
>
> Horizontally opposed engines like in Subaru, old VW beetles, Porsche are
> very well balanced and have a lower center of gravity. I don't know why
> more cars don't use these.
lower c.g. may be good [but minor - and in the case of a subaru,
somewhat academic]. from what i understand however, they're not
necessarily better balanced than straight 4's - they're still subject to
second order free moments. only 6's are inherently balanced, but that's
the same for straight or flat. no real advantage plus higher cost means
they're not worth bothering with.
>
> Many small aircraft engines are horizontally opposed and are made by
> Mitsubishi, Saab, Kohler, Kawasaki, Bombardier, Fuji and others. The Subaru
> ones are actually made by parent company Fuji Heavy Industries come to think
> of it and are very durable in aircraft or in Subarus.
>
> TL
>
>
>
>
>
>
>
>
> "High Tech Misfit" <me@privacy.net> wrote in message
> news:18jssgu03all3$.dlg@hightech.misfit...
>> Matt Ion wrote:
>>
>>> Some use a flat-4 though, which is like a V flattened out. My '82 Subaru
>>> had
>>> one, it was an incredibly durable engine. Lowers the center of gravity a
>>> lot
>>> too, for great stability. Dunno if Subaru is still using them
>> I'm pretty sure Subaru still uses flat-4's.
>
>
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10-20-2004 09:09 AM
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