Jon 2156 vs 357XP horse power

[ve2vk]

Hello to all,
This is my first posting. I looked thru the catalogues and noticed that the Jonsered 2156 has a rating of 4.4hp vs the the Husky 357xp has a rating of 3.9hp. These are supposed to be the same saws, does anyone know why the ratings are different ?

Bruno the bear

 

[HiOctane]

Probably an error in the specs,because they got both same cyl,piston,ignition,etc.Maybe one hp rating was Kwh and the other in hp.

 

[jokers]

The 359 is rated at 3.9hp.

Russ

 

[Max]

357xp advertised at 4.4 hp

 

[ehp]

Russ both of your 2159 and 359 I think are alittle above 3.9 horsepower, maybe someday I should put them on a dyno, Carm has one that goes as low as 1.0 horsepower

 

[Simonizer]

Probably an error in the specs,because they got both same cyl,piston,ignition,etc.Maybe one hp rating was Kwh and the other in hp.

Kwh is a unit of energy not power. Kw is power, (1000 watts) there are 745.6 watts in one horsepower. One horsepower is defined as 550 ft.lbs per second.

 

[ehp]

yes but that has to be correct to the proper air temp. to get the true horsepower at sea level. I have spent lots of time on dynos

 

[Simonizer]

yes but that has to be correct to the proper air temp. to get the true horsepower at sea level. I have spent lots of time on dynos

How many horsepower are you?

 

[ehp]

I guess that depends on how I lifted the 550 pounds , I have never benched 550 pounds before so that is out but have benched 512 pounds at a contest before, dead lifted 680, and squatted 720 all at the same show but that was a few years ago so maybe I would have the power of a wild thing for a couple seconds anyway

 

[Simonizer]

I guess that depends on how I lifted the 550 pounds , I have never benched 550 pounds before so that is out but have benched 512 pounds at a contest before, dead lifted 680, and squatted 720 all at the same show but that was a few years ago so maybe I would have the power of a wild thing for a couple seconds anyway

You could dead-lift 7 plus plates? Jesus. You probably wouldn't know if the power-steering belt fell off your 5000lb Cadillac ha ha. I dead-lifted 305 lbs (barely) when I was in college. I am a small dude though, 5' 7" about 140 lbs. I was a good size for roadracing motorcycles, had a lot of fun and some good get-offs at high speed.

 

[SAWGIRL]

I guess that depends on how I lifted the 550 pounds , I have never benched 550 pounds before so that is out but have benched 512 pounds at a contest before, dead lifted 680, and squatted 720 all at the same show but that was a few years ago so maybe I would have the power of a wild thing for a couple seconds anyway

I have a video of you choping. does not look like you can hardley lift the ax let alone 512 pounds. I will give it to wood junkie.

 

[jokers]

Russ both of your 2159 and 359 I think are alittle above 3.9 horsepower, maybe someday I should put them on a dyno......

I would think so, but it`s not necessary, the watch doesn`t lie now that I figured out how hard I can push on them.

Russ

 

[ehp]

Like I said a few years ago, it was 1994 at a gym in Vancouver , BC if you need to know by the time I came back here I had both shoulders done so yes I know I cannot chop so that is why I have oly chopped 1 block in 4 years, it hurts so why do it

 

[jokers]

I have a video of you choping. does not look like you can hardley lift the ax let alone 512 pounds. I will give it to wood junkie.

Looks like you`re having a little trouble handling the keyboard, Darlin'
You wanna try out Ed`s Wildthing for power?

Russ

 

[SawTroll]

Russ both of your 2159 and 359 I think are alittle above 3.9 horsepower, maybe someday I should put them on a dyno, Carm has one that goes as low as 1.0 horsepower

KWF/DLG has put them on a dyno during testing. Both versions turned out 2.9 kw, as advertised.
The surprice is that the 357xp only did put out 3.0 kw vs. the 3.2 adverticed. :alien:
The 2156 is not on the list of tested saws, (yet?).

Most saws that they have tested (mainly Stihl, Husky, Jred and Dolmar) have scored within +/- .1 kw from the factory numbers.

http://www.kwf-online.de/deutsch/pruef/pruef_index.htm

http://www.dlg.org/de/landwirtschaft/testzentrum/pruefberichte/forstkommunal.html#Motor

 

[jokers]

Hi SawTroll,

My 2159 and 359 have both been modified by Ed, hence, they are both putting out 3.9hp beofre I even start them.

I can`t explain some of the info I have seen you post from that magazine that you often refer to, but there is no comparison between the 357 and 359 when both stock as your post would imply, based on their "findings". I noted the same thing when you posted the link for the article about the Dolmar 5000, how it stated something to the effect that the 346 is far behind the ms260 in power and speed. I`ve never seen that in real life.

Russ

 

[SawTroll]

Russ, if you read my post again, you will see that I (sort of) questioned the result on the 357xp. The alien smiley was put there for a reason......

Not that it matters, but I am not referring to any magazine; but test reports made available on the internet.

The infamous magazine article that you are mentioning was heavily criticized by me on several occasions, and it was not me that first posted a link to it on this forum. In fact it was first posted several months before I joined the forum.
Even though KWF was involved in that test, it had nothing to do with the ordinary DLG/KWF test procedures.

Here is one of my posts about the test:

I don't think that those chains are standard on this saws in Germany, where the test took place.

The test has been shown and commented on at this forum earlier, and there is several factors that make the results questionable at best.

-Lack of knowledge about cutting attachment is one.
-Undue focus on rip cutting performance is another - who does a lot of this with 50 cc saws?
-It seems only one saw of each model was tested.
-The PS 5000 was pre-production, probably with a lot of time on it, while the others were new and probably not run in. :angry2:
-The test was conducted in collaboration with Dolmar, and cannot be regarded as an independent test, I think.

 

[pinus]

Looking the DLG/KWF tests results is interesting that Stihls 341 versus 361 (both have the same piston and cranck?) the first is 3.1kw versus 3.0kw of 361. At the same, time both saws are very fuel economy compared to husqy 357 which is 3.0kw saw too..

 

[SawTroll]

Looking the DLG/KWF tests results is interesting that Stihls 341 versus 361 (both have the same piston and cranck?) the first is 3.1kw versus 3.0kw of 361. At the same, time both saws are very fuel economy compared to husqy 357 which is 3.0kw saw too..

Pinus, the 361 test show 3.4 kw, not 3.0.
The saws tested are the European version, which have slightly different pistons, cylinders and mufflers compared to the US and Canadian saws usually commented on at this forum. At least the part numbers are different.

 

[pinus]

Pinus, the 361 test show 3.4 kw, not 3.0.
The saws tested are the European version, which have slightly different pistons, cylinders and mufflers compared to the US and Canadian saws usually commented on at this forum. At least the part numbers are different.

You are right 3.4kw, I was mistaken