Sachs Dolmar Chainsaws Thread

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Why Ron I believe you may be harboring a resentment. Hell brother, let it out, tell us how you really feel!!! :blob2: :rock: :D
 
There is a difference a 510 is 3.3hp and 12.1pounds a 5100 is 3.9hp and 11.2 pounds so its .9lbs lighter with .6hp more and the 510 is 13500 rpm the 5100 is 14500 rpm both are 50.4cc saws. I dont know about the 5105 but ive heard there tuned down a bit.
My father 1st bought a 510 till I showed him the stats on both saws.. he traded it in on a 5100 :D

as far as i know they dont sell the 5100 anymore just the 5105.the 510 yes has 3.3 hp the 5105 is3.8 hp,this is staight from dolmar's website.Also from my understanding they put new coils that limit it to 13,500 rpm which is the same as the 510 which also leadsme to beleive thats where the .5 hp comes from. A thousand rpm's is alot to give up.Weight wise i put both saws in my hands and honestly thought that the 5105 felt heavier.Thats just me.After talkin weeks with the shop owner about both saws he plain out told me that the difference between the two saws is very little,that the 510 was right there with the new 5105,and that it would cut just as good.
 
.Also from my understanding they put new coils that limit it to 13,500 rpm which is the same as the 510 which also leadsme to beleive thats where the .5 hp comes from. A thousand rpm's is alot to give up..

Yes a 1000 rpm is a lot and will definitely change the HP numbers, but I doubt it would have any real world implication. I would imagine that these saws are never turning anywhere 13500 while cutting.
 
no grease points

Or . . . better look again, it might be a hardnose :D

whats a hard nose?And also ive ran e3 spark plugs in every saw ive owned and seen significant gains in fuel economy and the way it revs harder under load.just wondering this 510 is the first prograde saw ive owned and dont want to ruin it by puting to hot a plug in it.Or not so much that its ahotter plug but twice the spark,would this hurt it in any way?
 
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whats a hard nose?And also ive ran e3 spark plugs in every saw ive owned and seen significant gains in fuel economy and the way it revs harder under load.just wondering this 510 is the first prograde saw ive owned and dont want to ruin it by puting to hot a plug in it.Or not so much that its ahotter plug but twice the spark,would this hurt it in any way?

A hardnose bar has no sprocket in it, the rails on the old bars were given extra heat treatment to make them even harder as they wore more on the tip radius. All bars that do not have a sprocket have become known as hardnose.

Pioneerguy600
 
whats a hard nose?And also ive ran e3 spark plugs in every saw ive owned and seen significant gains in fuel economy and the way it revs harder under load.just wondering this 510 is the first prograde saw ive owned and dont want to ruin it by puting to hot a plug in it.Or not so much that its ahotter plug but twice the spark,would this hurt it in any way?

E3 is a major deal, I doubt not only all their claims, but that it will do harm to your engine. I've used a lot of different plugs in different motors, some make a difference, not saying these don't, but none have ever hurt the motor. As long as they fit right, cross reference and all that, use what you want.
 
whats a hard nose?And also ive ran e3 spark plugs in every saw ive owned and seen significant gains in fuel economy and the way it revs harder under load.just wondering this 510 is the first prograde saw ive owned and dont want to ruin it by puting to hot a plug in it.Or not so much that its ahotter plug but twice the spark,would this hurt it in any way?
You're kidding, right? :dunno:
 
A hardnose bar has no sprocket in it, the rails on the old bars were given extra heat treatment to make them even harder as they wore more on the tip radius. All bars that do not have a sprocket have become known as hardnose.

Pioneerguy600

it does have a sprocket already checked
 
You're kidding, right? :dunno:

am i kidding,to what are you refering to? ithink both are legitimate questions,also im not a proffesional i do not log and cut trees for a living i do it cause its extra money and i like being in the woods doing something i love.so dont come in here making people feel like idiots because you might know more.
 
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Yes a 1000 rpm is a lot and will definitely change the HP numbers, but I doubt it would have any real world implication. I would imagine that these saws are never turning anywhere 13500 while cutting.

How will the max rpm change hp in any way? It doesn't! The 5100/5105 both make max power at 10,000 rpm. The only thing 14,500 rpm really does is zip off small limbs, that's it. Sure the extra rotating mass helps a little at first, but as soon as you pull the rpm's down it mean nothing IMHO. Like you said, in a 10" log 14,500 max rpm means nothing.:cheers:
 
How will the max rpm change hp in any way? It doesn't! The 5100/5105 both make max power at 10,000 rpm. The only thing 14,500 rpm really does is zip off small limbs, that's it. Sure the extra rotating mass helps a little at first, but as soon as you pull the rpm's down it mean nothing IMHO. Like you said, in a 10" log 14,500 max rpm means nothing.:cheers:

You are correct, but I would bet my bottom dollar that "claimed" HP (off of a graph) at 14,500 is higher than at 13,500. It would have nothing to do with real world conditions when cutting.
I have a little two stroke (smaller than any used in a chainsaw) that spins at over 25,000 rpm. It has a very high HP rating for its size, in practicality what the manufacturer claims and how it is used is much different. It never turns over 15,000 in said application. I run another 116cc twin (weighs 4lbs) that the manufacturer claims over 11 HP. It might have that but not at the rpms we use them at which is around 7000rpm., that is about peak torque also on these reed engines. In my application anything much over that and you have too much prop noise which is still way below peak HP.
You know how manufacturers like to stretch the truth:)
 
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Good idea to start a Sachs thread, it would help :newbie: s like me to find the parts and information that we need. :bang:

My ailing 112 needs lots of tlc to bring it back to peak performance and I need all the help that I can get.
 
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