best power to weight ratio

[CR888]

Solo has made saws for a lot of years and has made models for companies that would surprise you. Poor marketing and support is why you don't hear more from them. Remember that the 681 and Dolmar 7900 are essentially the same saw.

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l think dolmar did a little better out of that deal than solo to be quite frank and l don't think thay have plans to build any other models and share knowledge. A 681 is noticably stronger than the 7900 (probably Dolmars latest success story) and yes 'some' parts exchange. l think solo had a point to proove with the 681after their dealings with dolmar. This is not to suggest l don't like dolmar saws hell no they make a geat quality product and have been doing so for quite some time. Both solo and dolmar deserve a better market share imho...

 

[singinwoodwackr]

Not really. The usual measurement is kg/kW, so You have to divide the weight with the power. According to solo-germany.com, the weight of the 681 is 6.6kg and power is 4.7kW, so it is 1.404kg/kW. I think "on the paper" the best one is the new Stihl MS661 (from stihl.de) 7.4kg/5.4kW=1.370kg/kw. Stihl MS660 is 1.404kg/kW (from honeybros.com, as stihl.de doesn't include it no more); MS461 is 1.523kg/kW.
But from personal experience there is definately more to this than power and weight. I always consider vibration levels of the saw as well, because those can wear You out faster than the weight of the saw. That's why I sold my MS660 to get 390XPW, and there hasn't been a day I have regretted it. Really like the 390XPW.
Have to admit - those SOLO 681 stats are very good.

Ok, somebody 'splain this to me...
as stated above: MS661 (from stihl.de) 7.4kg/5.4kW=1.370kg/kw 16.3#/7.0hp
My early red-eye has a factory spec of 7.4kg/5.8kW equating to 1.275kg/kw 16.3#/7.8hp

so, it would seem that a smaller # is more advantageous, no?

 

[CR888]

Yeah but stihl just tells lies lol...just ask sawtroll!

 

[Uldis]

Ok, somebody 'splain this to me...
as stated above: MS661 (from stihl.de) 7.4kg/5.4kW=1.370kg/kw 16.3#/7.0hp
My early red-eye has a factory spec of 7.4kg/5.8kW equating to 1.275kg/kw 16.3#/7.8hp

so, it would seem that a smaller # is more advantageous, no?

I was comparing now available models mathematically. As the "red eye" has 5.8kW power, then it has better weight/power ratio.
Smaller weight is advantegous only if there is no decrease in power. If You could make MS661 weigh only 6.0kg, then you have even more power to weight.
I always think of this number as this: How much material goes into the saw to make one kW of power. And most would agree that the less You use the better (not sacrificing quality.)

 

[XSKIER]

The Solo is 1.9kw per kilo where as the 660 is closer to 1.5kw per kilo.

We really need video of your 35 horsepower 14 pound rocket. I guess all others would be clunkers in comparison.

 

[Tnshaker]

Again I am not talking factory specs or numbers. I understand people want to use them and I use numbers for data at my job everyday. However, as stated earlier in the thread on paper a 660 is near the top. When you run one in wood that is not the case at all. I am still thinkig 461 or 7900 in real use. The 390 is also very impressive after porwork as my brothers was much stronger than my 660 and lighter. I sold my 660.

 

[67L36Driver]

Old magnesium entry in the derby:

Just going by the seat of my pants but, my Remington SL-55A has the most diaplacement per pound of saw. 82cc in a package no larger than a Homie SXL (58cc). He do run out of fuel quick so, tank capacity did suffer.

 

[blsnelling]

The Poulan 5200/5400/8500 have to be way up on the list!

 

[MacLaren]

From what very little Ive ran stock:562xp ported:390xp

 

[Trx250r180]

The 461 runs pretty good for it's weight ,the xpw husky isn't bad either

 

[singinwoodwackr]

I was comparing now available models mathematically. As the "red eye" has 5.8kW power, then it has better weight/power ratio.
Smaller weight is advantegous only if there is no decrease in power. If You could make MS661 weigh only 6.0kg, then you have even more power to weight.
I always think of this number as this: How much material goes into the saw to make one kW of power. And most would agree that the less You use the better (not sacrificing quality.)

again, a smaller # would be a better power-to-weight ratio, correct? In other words, the 1.9 for the Solo is not nearly as good as the 1.4 of the 661.

 

[Uldis]

again, a smaller # would be a better power-to-weight ratio, correct? In other words, the 1.9 for the Solo is not nearly as good as the 1.4 of the 661.

Yes, exactly. (Solo is 1,404kg/kW, so it is actually not very far..)

 

[jpj6780]

Yes, exactly. (Solo is 1,404kg/kW, so it is actually not very far..)

That's a weight to power ratio, not a power to weight ratio.

Most would prefer a higher p/w ratio, but a lower w/p ratio. Just flip the numbers.

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[Uldis]

That's a weight to power ratio, not a power to weight ratio.

Most would prefer a higher p/w ratio, but a lower w/p ratio. Just flip the numbers.

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Sorry, You are right "Power to weight" would be the power divided by weight. I am just used to way Stihl specs it - it always has been weight divided by power.

 

[Wilywood]

Just thought I would share this. I did a quick run through the specs of the different brands to get a sense of the power to weight ratios. I have an MS660 and and MS211, and looking for a mid-power, lightest weight, multi-purpose saw. I like the specs on the 550XP and how it stacks up. I used to have a Jonsered, but got it used and it was pretty beat up (did not last long).

All big stuff !! Ill get laughed at..but I like the Husky 550xp . Seems to have snappy power and low weight . On paper Im sure it doesnt win..but in my hands it does !! I cant really say much about the bigger saws...I dont have any..and Im gonna keep it that way

 

[Jordan3605]

Now that's Power to Weight Ratio

 

[jockeydeuce]

I only seem to run older crap, so a lot of the newer stuff you guys talk about, I can't comment on. (Or a lot of older stuff either for that matter)

Strictly speaking of stock form, saws that come to mind that really impressed me in the power to weight ratio, are the 254xp Husky and a stock 064 Stihl.