chain saw bar question

[mcfarmall]

Buckin' Billy Ray knows his chainsaws too.

 

[RandyT]

Unless you change the size of the drive sprocket, chain speed won't change. A skip tooth chain has less teeth and will cut slower....but, it will help a saw pull a long bar if it is struggling. I have a MS460 with the dual port muffler and jetted to match and it is wicked with a 20" bar. I sharpen chains with a file so they are very sharp.

In theory yes, but in reality is incorrect. Lot more things going on that mitigate the 1/3 less teeth on the chain. Takes less power to pull the chain through the cut therefore maintains speed more. But another big thing is a chain when going through the cut porpoises until the area between the cutter fills with chips and then is a dead drag for chips. With the longer distance between teeth on a skip link will allow for more chip containment. so if a chain fills the between cutter gap with 6 bites of wood and then had to drag it out without any further cutting, the skip length will make 12 cuts before filling up and doing the same thing.

 

[MiserableOldFart]

As mentioned above, the longer bar will have slightly more friction, all other things equal, but the extra teeth will dull somewhat slower and you won't have to stop as often to sharpen. Of course, when you do, there are more teeth to sharpen, but I like being able to go a little longer between sharpenings if possible. The extra friction probably is barely noticeable, if at all.