2 stroke
Feb 1, 2004 | 03:10 PM
#12
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2 stroke
im not sure whether the new regs in the usa will affect gasgas's abiltiy to import the quad into the usa, but as far as im aware off road vehicles are not part of the environmental equation in europe, at the end of the day there are far fewer ORV than cars who are the real culprits,
the only time emmisions and noise polution are an issue is when your on the public highways
the only time emmisions and noise polution are an issue is when your on the public highways
Feb 1, 2004 | 03:39 PM
#13
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2 stroke
Originally posted by: UKzilla
your actualy wrong about the energy situation on a per cc basis the 2 stroke is the most powerfull internal combustion engine ever designed,
as an example my stock zilla is pumping out more power per cc than a dodge viper, and many so called super cars,
so if you look on tru efficiency basis 2 strokes produce there power more efficiently than four strokes cos they can produce more power with less effort,
your actualy wrong about the energy situation on a per cc basis the 2 stroke is the most powerfull internal combustion engine ever designed,
as an example my stock zilla is pumping out more power per cc than a dodge viper, and many so called super cars,
so if you look on tru efficiency basis 2 strokes produce there power more efficiently than four strokes cos they can produce more power with less effort,
Originally posted by: peteyz24
we are gonna see injected 2 strokes in the the sled world real quick as well as more 4 strokes, Arctic Cat supposedly has a new 4 stroke around 800cc coming out next model year no one is sure if it will be N/A, turbo, or blown. there are rumors of all 3, i guess only time will tell
we are gonna see injected 2 strokes in the the sled world real quick as well as more 4 strokes, Arctic Cat supposedly has a new 4 stroke around 800cc coming out next model year no one is sure if it will be N/A, turbo, or blown. there are rumors of all 3, i guess only time will tell
An 800 4-stroke sled is nothing. I'd imagine it would have about as much power as a 500 2-stroke, but it wouldn't be able to compare to the big 800s and such. Why an 800 if Yamaha has a 1000 4-stroke?
Feb 1, 2004 | 05:44 PM
#14
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From: upper michigan
2 stroke
Originally posted by: jed250
An 800 4-stroke sled is nothing. I'd imagine it would have about as much power as a 500 2-stroke, but it wouldn't be able to compare to the big 800s and such. Why an 800 if Yamaha has a 1000 4-stroke?
An 800 4-stroke sled is nothing. I'd imagine it would have about as much power as a 500 2-stroke, but it wouldn't be able to compare to the big 800s and such. Why an 800 if Yamaha has a 1000 4-stroke?
Feb 1, 2004 | 06:37 PM
#15
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2 stroke
yam mange to squeeze 176hp out of the R1 engine, why dont they do that,
one thing i dont understand is why the the manufacturers of off road bikes and atv's seem to be obsessed with single cylinder 4 stroke engines, just seems like the worst possable combination,
on the the 2v4 stroke power/emissions thing i still think your wrong an engines efficiecy is measured by its ability to produce power if a 500 cc 2 stroke engine produce 50 hp and to get 50 hp from a four stroke you need 1000cc then thoes 1000 cc will produce more polution than 500cc's
sory i need to rephraze that, im not trying to argue that im right and your wrong but we seem to be aproaching things from oposite ends of the equation,
and ill be the first to admit that the enviro ***** that have pushed for the law change would not be impressed with any figures regarding an engines power efficiency, they just want less smoke.
as i have said earlier, scooters are cosidered the ultimate in enviro friendly motorised personal transport and im sure it has nothing to do with power efficiency or small engine capasity its simply the fact that your getting from a 2 b causing less polution,
one thing i dont understand is why the the manufacturers of off road bikes and atv's seem to be obsessed with single cylinder 4 stroke engines, just seems like the worst possable combination,
on the the 2v4 stroke power/emissions thing i still think your wrong an engines efficiecy is measured by its ability to produce power if a 500 cc 2 stroke engine produce 50 hp and to get 50 hp from a four stroke you need 1000cc then thoes 1000 cc will produce more polution than 500cc's
sory i need to rephraze that, im not trying to argue that im right and your wrong but we seem to be aproaching things from oposite ends of the equation,
and ill be the first to admit that the enviro ***** that have pushed for the law change would not be impressed with any figures regarding an engines power efficiency, they just want less smoke.
as i have said earlier, scooters are cosidered the ultimate in enviro friendly motorised personal transport and im sure it has nothing to do with power efficiency or small engine capasity its simply the fact that your getting from a 2 b causing less polution,
Feb 1, 2004 | 07:13 PM
#17
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2 stroke
Originally posted by: UKzilla
yam mange to squeeze 176hp out of the R1 engine, why dont they do that,
one thing i dont understand is why the the manufacturers of off road bikes and atv's seem to be obsessed with single cylinder 4 stroke engines, just seems like the worst possable combination,
on the the 2v4 stroke power/emissions thing i still think your wrong an engines efficiecy is measured by its ability to produce power if a 500 cc 2 stroke engine produce 50 hp and to get 50 hp from a four stroke you need 1000cc then thoes 1000 cc will produce more polution than 500cc's
sory i need to rephraze that, im not trying to argue that im right and your wrong but we seem to be aproaching things from oposite ends of the equation,
and ill be the first to admit that the enviro ***** that have pushed for the law change would not be impressed with any figures regarding an engines power efficiency, they just want less smoke.
as i have said earlier, scooters are cosidered the ultimate in enviro friendly motorised personal transport and im sure it has nothing to do with power efficiency or small engine capasity its simply the fact that your getting from a 2 b causing less polution,
yam mange to squeeze 176hp out of the R1 engine, why dont they do that,
one thing i dont understand is why the the manufacturers of off road bikes and atv's seem to be obsessed with single cylinder 4 stroke engines, just seems like the worst possable combination,
on the the 2v4 stroke power/emissions thing i still think your wrong an engines efficiecy is measured by its ability to produce power if a 500 cc 2 stroke engine produce 50 hp and to get 50 hp from a four stroke you need 1000cc then thoes 1000 cc will produce more polution than 500cc's
sory i need to rephraze that, im not trying to argue that im right and your wrong but we seem to be aproaching things from oposite ends of the equation,
and ill be the first to admit that the enviro ***** that have pushed for the law change would not be impressed with any figures regarding an engines power efficiency, they just want less smoke.
as i have said earlier, scooters are cosidered the ultimate in enviro friendly motorised personal transport and im sure it has nothing to do with power efficiency or small engine capasity its simply the fact that your getting from a 2 b causing less polution,
A 500cc 2-stroke does pollute more than a 1000cc 4-stroke. The oil is mixed in with the gas in a 2-stroke and it doesn't burn off completely and this causes smoke. A 4-stroke engine burns most of it's fuel and causes less pollution. I don't think I can make you think the way I'm thinking right now, so I might as well stop this argument. I don't feel like looking for proof and ya....heh.
4-stroke singles are used because they are lighter than a Twin. That's one reason why the sleds are Twins rather than Triples.
Feb 1, 2004 | 07:42 PM
#18
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2 stroke
never thought of that with the weight issue,
and yes your probably right about the polution aspect of 2 v 4 stroke but like i say were aproaching engine efficiency from diferent angles,
im sure the whole issue has given and continues to give the manufacturers a head ache,
the problem for us as atv enthusisats is are we gona be the ones who loose out??
ive oten heard people talk of the legendary status of certain atvs and how theres nothing around to match them and never will be
and if thats the truth then it seems theres an attempt being made to try and rewrite the history books and and almost try to uninvent a technology that has served a purpose and served it well,
saying things like "things move on" just doesnt seem to cut it with me,
and as far as the origial topic of this post is concerend the issue simply isnt about strokes its just emmisions, if you meet the emmisions your in, its down to the individual manufacturers to decide whether they want to make the investment in development of an emissions friendly 2 stoke, and it seems the majority of manufacturers dont want to,
shame tho,
and yes your probably right about the polution aspect of 2 v 4 stroke but like i say were aproaching engine efficiency from diferent angles,
im sure the whole issue has given and continues to give the manufacturers a head ache,
the problem for us as atv enthusisats is are we gona be the ones who loose out??
ive oten heard people talk of the legendary status of certain atvs and how theres nothing around to match them and never will be
and if thats the truth then it seems theres an attempt being made to try and rewrite the history books and and almost try to uninvent a technology that has served a purpose and served it well,
saying things like "things move on" just doesnt seem to cut it with me,
and as far as the origial topic of this post is concerend the issue simply isnt about strokes its just emmisions, if you meet the emmisions your in, its down to the individual manufacturers to decide whether they want to make the investment in development of an emissions friendly 2 stoke, and it seems the majority of manufacturers dont want to,
shame tho,
Feb 1, 2004 | 09:18 PM
#19
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2 stroke
Originally posted by: UKzilla
and as far as the origial topic of this post is concerend the issue simply isnt about strokes its just emmisions, if you meet the emmisions your in, its down to the individual manufacturers to decide whether they want to make the investment in development of an emissions friendly 2 stoke, and it seems the majority of manufacturers dont want to,
shame tho,
and as far as the origial topic of this post is concerend the issue simply isnt about strokes its just emmisions, if you meet the emmisions your in, its down to the individual manufacturers to decide whether they want to make the investment in development of an emissions friendly 2 stoke, and it seems the majority of manufacturers dont want to,
shame tho,
I completely agree that it's a shame. Many snowmobiles are heavy as it already is and with a larger 4-stroke engine, they'll be even heavier. Thta's just for sleds though...
