OT a little 2 cycle Vs 4cycle
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
Two cycles are too dirty, and use way more fuel, even then in
bigger engines you need a way for them to breath, needing both turbo and
super chargers, and four valves per cylinder like the 1947 Detroit 6-71
still being used in diesel trucks with twelve cylinders, 92 cubic inches
per cylinder: http://blakeboatworks.com/janbill.jpg
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Brian Foster wrote:
>
> Just got rid of my 15 year old leaf blower. Something like a 30cc 16/1
> mixture 15 year old Craftsman.
>
> Bought a new Poulan 40/1 33 cc blower.
>
> Question is the 2 cycle VS 4 cycle engine. What are the pros vs cons of
> both? I realize mixing oil & gas would be a hassle for most car owners but
> what other negatives are there for 2 cycle engines?
>
> I have to believe that power to weight ratio is very high for 2 cycle vs 4
> cycle. Do 2 cycle engines wear more than 4 cycle?
>
> I guess I'm looking for the science behind these two types and how they lend
> themselves to automotive applications.
>
> Thanks, I appreciate the combined knowledge of the group.
bigger engines you need a way for them to breath, needing both turbo and
super chargers, and four valves per cylinder like the 1947 Detroit 6-71
still being used in diesel trucks with twelve cylinders, 92 cubic inches
per cylinder: http://blakeboatworks.com/janbill.jpg
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Brian Foster wrote:
>
> Just got rid of my 15 year old leaf blower. Something like a 30cc 16/1
> mixture 15 year old Craftsman.
>
> Bought a new Poulan 40/1 33 cc blower.
>
> Question is the 2 cycle VS 4 cycle engine. What are the pros vs cons of
> both? I realize mixing oil & gas would be a hassle for most car owners but
> what other negatives are there for 2 cycle engines?
>
> I have to believe that power to weight ratio is very high for 2 cycle vs 4
> cycle. Do 2 cycle engines wear more than 4 cycle?
>
> I guess I'm looking for the science behind these two types and how they lend
> themselves to automotive applications.
>
> Thanks, I appreciate the combined knowledge of the group.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
Two cycles are too dirty, and use way more fuel, even then in
bigger engines you need a way for them to breath, needing both turbo and
super chargers, and four valves per cylinder like the 1947 Detroit 6-71
still being used in diesel trucks with twelve cylinders, 92 cubic inches
per cylinder: http://blakeboatworks.com/janbill.jpg
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Brian Foster wrote:
>
> Just got rid of my 15 year old leaf blower. Something like a 30cc 16/1
> mixture 15 year old Craftsman.
>
> Bought a new Poulan 40/1 33 cc blower.
>
> Question is the 2 cycle VS 4 cycle engine. What are the pros vs cons of
> both? I realize mixing oil & gas would be a hassle for most car owners but
> what other negatives are there for 2 cycle engines?
>
> I have to believe that power to weight ratio is very high for 2 cycle vs 4
> cycle. Do 2 cycle engines wear more than 4 cycle?
>
> I guess I'm looking for the science behind these two types and how they lend
> themselves to automotive applications.
>
> Thanks, I appreciate the combined knowledge of the group.
bigger engines you need a way for them to breath, needing both turbo and
super chargers, and four valves per cylinder like the 1947 Detroit 6-71
still being used in diesel trucks with twelve cylinders, 92 cubic inches
per cylinder: http://blakeboatworks.com/janbill.jpg
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Brian Foster wrote:
>
> Just got rid of my 15 year old leaf blower. Something like a 30cc 16/1
> mixture 15 year old Craftsman.
>
> Bought a new Poulan 40/1 33 cc blower.
>
> Question is the 2 cycle VS 4 cycle engine. What are the pros vs cons of
> both? I realize mixing oil & gas would be a hassle for most car owners but
> what other negatives are there for 2 cycle engines?
>
> I have to believe that power to weight ratio is very high for 2 cycle vs 4
> cycle. Do 2 cycle engines wear more than 4 cycle?
>
> I guess I'm looking for the science behind these two types and how they lend
> themselves to automotive applications.
>
> Thanks, I appreciate the combined knowledge of the group.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
Two cycles are too dirty, and use way more fuel, even then in
bigger engines you need a way for them to breath, needing both turbo and
super chargers, and four valves per cylinder like the 1947 Detroit 6-71
still being used in diesel trucks with twelve cylinders, 92 cubic inches
per cylinder: http://blakeboatworks.com/janbill.jpg
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Brian Foster wrote:
>
> Just got rid of my 15 year old leaf blower. Something like a 30cc 16/1
> mixture 15 year old Craftsman.
>
> Bought a new Poulan 40/1 33 cc blower.
>
> Question is the 2 cycle VS 4 cycle engine. What are the pros vs cons of
> both? I realize mixing oil & gas would be a hassle for most car owners but
> what other negatives are there for 2 cycle engines?
>
> I have to believe that power to weight ratio is very high for 2 cycle vs 4
> cycle. Do 2 cycle engines wear more than 4 cycle?
>
> I guess I'm looking for the science behind these two types and how they lend
> themselves to automotive applications.
>
> Thanks, I appreciate the combined knowledge of the group.
bigger engines you need a way for them to breath, needing both turbo and
super chargers, and four valves per cylinder like the 1947 Detroit 6-71
still being used in diesel trucks with twelve cylinders, 92 cubic inches
per cylinder: http://blakeboatworks.com/janbill.jpg
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
Brian Foster wrote:
>
> Just got rid of my 15 year old leaf blower. Something like a 30cc 16/1
> mixture 15 year old Craftsman.
>
> Bought a new Poulan 40/1 33 cc blower.
>
> Question is the 2 cycle VS 4 cycle engine. What are the pros vs cons of
> both? I realize mixing oil & gas would be a hassle for most car owners but
> what other negatives are there for 2 cycle engines?
>
> I have to believe that power to weight ratio is very high for 2 cycle vs 4
> cycle. Do 2 cycle engines wear more than 4 cycle?
>
> I guess I'm looking for the science behind these two types and how they lend
> themselves to automotive applications.
>
> Thanks, I appreciate the combined knowledge of the group.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
The two cycle crankcase scavenged engine used in snow blowers, model
airplanes, chain saws, has nothing to do with two cycle diesels which
run dry crankcases and use plenum scavenging with a Roots (most
Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
cycle spark engines using direct injection and pressure oiling with
synthetic oils are much, much cleaner than they were years ago, which
is the only reason they are still allowed in outboards.
You don't know much about Detroit Diesels either. A 6-71 does not have
92 cid/cyl and does not have twelve pistons. A 12V-92 does.
Turbocharged two cycle diesels only use the mechanical Roots blower for
starting, as the turbos maintain positive plenum pressure from there
out. In fact racing Detroits now have no mechanical blower-they use air
impingement for starting.
it may interest you to know that the ONLY Detroit Diesel engine
meeting the most stringent new heavy vehicle standards for emissions is
the 6V92T DDEC.
airplanes, chain saws, has nothing to do with two cycle diesels which
run dry crankcases and use plenum scavenging with a Roots (most
Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
cycle spark engines using direct injection and pressure oiling with
synthetic oils are much, much cleaner than they were years ago, which
is the only reason they are still allowed in outboards.
You don't know much about Detroit Diesels either. A 6-71 does not have
92 cid/cyl and does not have twelve pistons. A 12V-92 does.
Turbocharged two cycle diesels only use the mechanical Roots blower for
starting, as the turbos maintain positive plenum pressure from there
out. In fact racing Detroits now have no mechanical blower-they use air
impingement for starting.
it may interest you to know that the ONLY Detroit Diesel engine
meeting the most stringent new heavy vehicle standards for emissions is
the 6V92T DDEC.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
The two cycle crankcase scavenged engine used in snow blowers, model
airplanes, chain saws, has nothing to do with two cycle diesels which
run dry crankcases and use plenum scavenging with a Roots (most
Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
cycle spark engines using direct injection and pressure oiling with
synthetic oils are much, much cleaner than they were years ago, which
is the only reason they are still allowed in outboards.
You don't know much about Detroit Diesels either. A 6-71 does not have
92 cid/cyl and does not have twelve pistons. A 12V-92 does.
Turbocharged two cycle diesels only use the mechanical Roots blower for
starting, as the turbos maintain positive plenum pressure from there
out. In fact racing Detroits now have no mechanical blower-they use air
impingement for starting.
it may interest you to know that the ONLY Detroit Diesel engine
meeting the most stringent new heavy vehicle standards for emissions is
the 6V92T DDEC.
airplanes, chain saws, has nothing to do with two cycle diesels which
run dry crankcases and use plenum scavenging with a Roots (most
Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
cycle spark engines using direct injection and pressure oiling with
synthetic oils are much, much cleaner than they were years ago, which
is the only reason they are still allowed in outboards.
You don't know much about Detroit Diesels either. A 6-71 does not have
92 cid/cyl and does not have twelve pistons. A 12V-92 does.
Turbocharged two cycle diesels only use the mechanical Roots blower for
starting, as the turbos maintain positive plenum pressure from there
out. In fact racing Detroits now have no mechanical blower-they use air
impingement for starting.
it may interest you to know that the ONLY Detroit Diesel engine
meeting the most stringent new heavy vehicle standards for emissions is
the 6V92T DDEC.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
The two cycle crankcase scavenged engine used in snow blowers, model
airplanes, chain saws, has nothing to do with two cycle diesels which
run dry crankcases and use plenum scavenging with a Roots (most
Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
cycle spark engines using direct injection and pressure oiling with
synthetic oils are much, much cleaner than they were years ago, which
is the only reason they are still allowed in outboards.
You don't know much about Detroit Diesels either. A 6-71 does not have
92 cid/cyl and does not have twelve pistons. A 12V-92 does.
Turbocharged two cycle diesels only use the mechanical Roots blower for
starting, as the turbos maintain positive plenum pressure from there
out. In fact racing Detroits now have no mechanical blower-they use air
impingement for starting.
it may interest you to know that the ONLY Detroit Diesel engine
meeting the most stringent new heavy vehicle standards for emissions is
the 6V92T DDEC.
airplanes, chain saws, has nothing to do with two cycle diesels which
run dry crankcases and use plenum scavenging with a Roots (most
Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
cycle spark engines using direct injection and pressure oiling with
synthetic oils are much, much cleaner than they were years ago, which
is the only reason they are still allowed in outboards.
You don't know much about Detroit Diesels either. A 6-71 does not have
92 cid/cyl and does not have twelve pistons. A 12V-92 does.
Turbocharged two cycle diesels only use the mechanical Roots blower for
starting, as the turbos maintain positive plenum pressure from there
out. In fact racing Detroits now have no mechanical blower-they use air
impingement for starting.
it may interest you to know that the ONLY Detroit Diesel engine
meeting the most stringent new heavy vehicle standards for emissions is
the 6V92T DDEC.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
The two cycle crankcase scavenged engine used in snow blowers, model
airplanes, chain saws, has nothing to do with two cycle diesels which
run dry crankcases and use plenum scavenging with a Roots (most
Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
cycle spark engines using direct injection and pressure oiling with
synthetic oils are much, much cleaner than they were years ago, which
is the only reason they are still allowed in outboards.
You don't know much about Detroit Diesels either. A 6-71 does not have
92 cid/cyl and does not have twelve pistons. A 12V-92 does.
Turbocharged two cycle diesels only use the mechanical Roots blower for
starting, as the turbos maintain positive plenum pressure from there
out. In fact racing Detroits now have no mechanical blower-they use air
impingement for starting.
it may interest you to know that the ONLY Detroit Diesel engine
meeting the most stringent new heavy vehicle standards for emissions is
the 6V92T DDEC.
airplanes, chain saws, has nothing to do with two cycle diesels which
run dry crankcases and use plenum scavenging with a Roots (most
Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
cycle spark engines using direct injection and pressure oiling with
synthetic oils are much, much cleaner than they were years ago, which
is the only reason they are still allowed in outboards.
You don't know much about Detroit Diesels either. A 6-71 does not have
92 cid/cyl and does not have twelve pistons. A 12V-92 does.
Turbocharged two cycle diesels only use the mechanical Roots blower for
starting, as the turbos maintain positive plenum pressure from there
out. In fact racing Detroits now have no mechanical blower-they use air
impingement for starting.
it may interest you to know that the ONLY Detroit Diesel engine
meeting the most stringent new heavy vehicle standards for emissions is
the 6V92T DDEC.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
The Poster was not asking about chain saws, or motorbike engines,
but why two cycles couldn't be use on a larger scale. And that answer
again is pollution: http://www.dieselnet.com/standards/us/light.html and
diesel-powered cars are banned in California:
http://www.detnews.com/2005/autosins.../C02-51826.htm As an
owner operator I've adjusted the rack and changed the buttons on every
tractor I've driven, even did a few in frames on my trucks:
http://www.----------.com/rextrans.jpg
http://www.----------.com/kenworth.jpg
http://www.----------.com/white.jpg
http://www.----------.com/mack.jpg
I bet you can't tell me what a button or rack is!
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
calcerise@hotmail.com wrote:
>
> The two cycle crankcase scavenged engine used in snow blowers, model
> airplanes, chain saws, has nothing to do with two cycle diesels which
> run dry crankcases and use plenum scavenging with a Roots (most
> Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
> cycle spark engines using direct injection and pressure oiling with
> synthetic oils are much, much cleaner than they were years ago, which
> is the only reason they are still allowed in outboards.
>
> You don't know much about Detroit Diesels either. A 6-71 does not have
> 92 cid/cyl and does not have twelve pistons. A 12V-92 does.
> Turbocharged two cycle diesels only use the mechanical Roots blower for
> starting, as the turbos maintain positive plenum pressure from there
> out. In fact racing Detroits now have no mechanical blower-they use air
> impingement for starting.
>
> it may interest you to know that the ONLY Detroit Diesel engine
> meeting the most stringent new heavy vehicle standards for emissions is
> the 6V92T DDEC.
but why two cycles couldn't be use on a larger scale. And that answer
again is pollution: http://www.dieselnet.com/standards/us/light.html and
diesel-powered cars are banned in California:
http://www.detnews.com/2005/autosins.../C02-51826.htm As an
owner operator I've adjusted the rack and changed the buttons on every
tractor I've driven, even did a few in frames on my trucks:
http://www.----------.com/rextrans.jpg
http://www.----------.com/kenworth.jpg
http://www.----------.com/white.jpg
http://www.----------.com/mack.jpg
I bet you can't tell me what a button or rack is!
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
calcerise@hotmail.com wrote:
>
> The two cycle crankcase scavenged engine used in snow blowers, model
> airplanes, chain saws, has nothing to do with two cycle diesels which
> run dry crankcases and use plenum scavenging with a Roots (most
> Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
> cycle spark engines using direct injection and pressure oiling with
> synthetic oils are much, much cleaner than they were years ago, which
> is the only reason they are still allowed in outboards.
>
> You don't know much about Detroit Diesels either. A 6-71 does not have
> 92 cid/cyl and does not have twelve pistons. A 12V-92 does.
> Turbocharged two cycle diesels only use the mechanical Roots blower for
> starting, as the turbos maintain positive plenum pressure from there
> out. In fact racing Detroits now have no mechanical blower-they use air
> impingement for starting.
>
> it may interest you to know that the ONLY Detroit Diesel engine
> meeting the most stringent new heavy vehicle standards for emissions is
> the 6V92T DDEC.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
The Poster was not asking about chain saws, or motorbike engines,
but why two cycles couldn't be use on a larger scale. And that answer
again is pollution: http://www.dieselnet.com/standards/us/light.html and
diesel-powered cars are banned in California:
http://www.detnews.com/2005/autosins.../C02-51826.htm As an
owner operator I've adjusted the rack and changed the buttons on every
tractor I've driven, even did a few in frames on my trucks:
http://www.----------.com/rextrans.jpg
http://www.----------.com/kenworth.jpg
http://www.----------.com/white.jpg
http://www.----------.com/mack.jpg
I bet you can't tell me what a button or rack is!
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
calcerise@hotmail.com wrote:
>
> The two cycle crankcase scavenged engine used in snow blowers, model
> airplanes, chain saws, has nothing to do with two cycle diesels which
> run dry crankcases and use plenum scavenging with a Roots (most
> Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
> cycle spark engines using direct injection and pressure oiling with
> synthetic oils are much, much cleaner than they were years ago, which
> is the only reason they are still allowed in outboards.
>
> You don't know much about Detroit Diesels either. A 6-71 does not have
> 92 cid/cyl and does not have twelve pistons. A 12V-92 does.
> Turbocharged two cycle diesels only use the mechanical Roots blower for
> starting, as the turbos maintain positive plenum pressure from there
> out. In fact racing Detroits now have no mechanical blower-they use air
> impingement for starting.
>
> it may interest you to know that the ONLY Detroit Diesel engine
> meeting the most stringent new heavy vehicle standards for emissions is
> the 6V92T DDEC.
but why two cycles couldn't be use on a larger scale. And that answer
again is pollution: http://www.dieselnet.com/standards/us/light.html and
diesel-powered cars are banned in California:
http://www.detnews.com/2005/autosins.../C02-51826.htm As an
owner operator I've adjusted the rack and changed the buttons on every
tractor I've driven, even did a few in frames on my trucks:
http://www.----------.com/rextrans.jpg
http://www.----------.com/kenworth.jpg
http://www.----------.com/white.jpg
http://www.----------.com/mack.jpg
I bet you can't tell me what a button or rack is!
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
calcerise@hotmail.com wrote:
>
> The two cycle crankcase scavenged engine used in snow blowers, model
> airplanes, chain saws, has nothing to do with two cycle diesels which
> run dry crankcases and use plenum scavenging with a Roots (most
> Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
> cycle spark engines using direct injection and pressure oiling with
> synthetic oils are much, much cleaner than they were years ago, which
> is the only reason they are still allowed in outboards.
>
> You don't know much about Detroit Diesels either. A 6-71 does not have
> 92 cid/cyl and does not have twelve pistons. A 12V-92 does.
> Turbocharged two cycle diesels only use the mechanical Roots blower for
> starting, as the turbos maintain positive plenum pressure from there
> out. In fact racing Detroits now have no mechanical blower-they use air
> impingement for starting.
>
> it may interest you to know that the ONLY Detroit Diesel engine
> meeting the most stringent new heavy vehicle standards for emissions is
> the 6V92T DDEC.
Guest
Posts: n/a
Re: OT a little 2 cycle Vs 4cycle
The Poster was not asking about chain saws, or motorbike engines,
but why two cycles couldn't be use on a larger scale. And that answer
again is pollution: http://www.dieselnet.com/standards/us/light.html and
diesel-powered cars are banned in California:
http://www.detnews.com/2005/autosins.../C02-51826.htm As an
owner operator I've adjusted the rack and changed the buttons on every
tractor I've driven, even did a few in frames on my trucks:
http://www.----------.com/rextrans.jpg
http://www.----------.com/kenworth.jpg
http://www.----------.com/white.jpg
http://www.----------.com/mack.jpg
I bet you can't tell me what a button or rack is!
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
calcerise@hotmail.com wrote:
>
> The two cycle crankcase scavenged engine used in snow blowers, model
> airplanes, chain saws, has nothing to do with two cycle diesels which
> run dry crankcases and use plenum scavenging with a Roots (most
> Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
> cycle spark engines using direct injection and pressure oiling with
> synthetic oils are much, much cleaner than they were years ago, which
> is the only reason they are still allowed in outboards.
>
> You don't know much about Detroit Diesels either. A 6-71 does not have
> 92 cid/cyl and does not have twelve pistons. A 12V-92 does.
> Turbocharged two cycle diesels only use the mechanical Roots blower for
> starting, as the turbos maintain positive plenum pressure from there
> out. In fact racing Detroits now have no mechanical blower-they use air
> impingement for starting.
>
> it may interest you to know that the ONLY Detroit Diesel engine
> meeting the most stringent new heavy vehicle standards for emissions is
> the 6V92T DDEC.
but why two cycles couldn't be use on a larger scale. And that answer
again is pollution: http://www.dieselnet.com/standards/us/light.html and
diesel-powered cars are banned in California:
http://www.detnews.com/2005/autosins.../C02-51826.htm As an
owner operator I've adjusted the rack and changed the buttons on every
tractor I've driven, even did a few in frames on my trucks:
http://www.----------.com/rextrans.jpg
http://www.----------.com/kenworth.jpg
http://www.----------.com/white.jpg
http://www.----------.com/mack.jpg
I bet you can't tell me what a button or rack is!
God Bless America, ßill O|||||||O
mailto:-------------------- http://www.----------.com/
calcerise@hotmail.com wrote:
>
> The two cycle crankcase scavenged engine used in snow blowers, model
> airplanes, chain saws, has nothing to do with two cycle diesels which
> run dry crankcases and use plenum scavenging with a Roots (most
> Detroits) or centrifugal (Foden, a few odd Detroits, Junkers Jumo). Two
> cycle spark engines using direct injection and pressure oiling with
> synthetic oils are much, much cleaner than they were years ago, which
> is the only reason they are still allowed in outboards.
>
> You don't know much about Detroit Diesels either. A 6-71 does not have
> 92 cid/cyl and does not have twelve pistons. A 12V-92 does.
> Turbocharged two cycle diesels only use the mechanical Roots blower for
> starting, as the turbos maintain positive plenum pressure from there
> out. In fact racing Detroits now have no mechanical blower-they use air
> impingement for starting.
>
> it may interest you to know that the ONLY Detroit Diesel engine
> meeting the most stringent new heavy vehicle standards for emissions is
> the 6V92T DDEC.