Okay, what is your strategy? Your formula? Your theory?
Time and time again I read in this interweb thingy about bar length suggestion that to me in my part of the World seem a bit excessive for the CC rating of the powerhead.
For me this usually occurs in say the 60-65cc and 25 inch bar- or the low 70cc saws with suggestions of 32" as a general purpose fitment.
Generally my own rules of thumb (not cast in stone) are 60 to mid 60cc are 18-20 inch bar saws (most often 20"), 70-mid70cc are the 24/25"domain and 80-90cc can use a 28-30-32" really well. After that I hit a bit of a grey area around Stihl saws and oil delivery and do not like going above 30" on 066 sized saws, but will happily run 36" bars on 95cc Swedish saws- over 36" I like to step up and somewhat backward in age to 100cc and the old CD saws like the 2100 Husqvarna (manual assist oil pump help here as well as slower chain speed and more torque).
So that's kind of how I do it, not a hard and fast rule- have a Husqvarna 61 happily wearing a 22" bar, have a D025 36" I will put on an 066 now and then- but the above is my general guideline and I have multiple saws in all the above CC ranges to choose from.
If you really want to have some fun, try fitting low to mid 60cc saws with .325 chain and 20 inch bars- the results can surprise run against similar 3/8 set ups.
Time and time again I read in this interweb thingy about bar length suggestion that to me in my part of the World seem a bit excessive for the CC rating of the powerhead.
For me this usually occurs in say the 60-65cc and 25 inch bar- or the low 70cc saws with suggestions of 32" as a general purpose fitment.
Generally my own rules of thumb (not cast in stone) are 60 to mid 60cc are 18-20 inch bar saws (most often 20"), 70-mid70cc are the 24/25"domain and 80-90cc can use a 28-30-32" really well. After that I hit a bit of a grey area around Stihl saws and oil delivery and do not like going above 30" on 066 sized saws, but will happily run 36" bars on 95cc Swedish saws- over 36" I like to step up and somewhat backward in age to 100cc and the old CD saws like the 2100 Husqvarna (manual assist oil pump help here as well as slower chain speed and more torque).
So that's kind of how I do it, not a hard and fast rule- have a Husqvarna 61 happily wearing a 22" bar, have a D025 36" I will put on an 066 now and then- but the above is my general guideline and I have multiple saws in all the above CC ranges to choose from.
If you really want to have some fun, try fitting low to mid 60cc saws with .325 chain and 20 inch bars- the results can surprise run against similar 3/8 set ups.
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