Nice work, and thanks for taking the time to do the testing and posting the results.
Dyno testing is a static test, but we can still learn from it. I dyno all the automotive V-8 engines built here, have for close to 20 years now. I look beyond peak power numbers. Average power, smooth/broad/flat torque curves are important as well. This is because ALL engines are variable RPM and load varies considerably as well. It applies to small power equipment most importantly chain saws. I've had a few over the years that would win dyno or do very well at them, but the narrow high peaking power curves means that they can fall out of them easily and stall against the clutch when too much load is applied.
There are other things to factor into the equation as well, weight, balance, anti-vibe, "ergonomics", reliability in long term service, etc.
For chainsaws we are using them to perform work, in a wide variety of material and great range of operating conditions. I'm sure all the saws tested wouldn't be all that far off in timed cutting performance in decent size wood and all would get the job done. For sure where power is important and getting work done quicker so we can make more money, or get onto something else like enjoying an adult beverage........speed and power are things to consider here.
Related a few years ago I did some timed cutting testing between my 262XP and Echo CS-600P. The CS-600P outran the "famous" 262XP but not by a wide margin, maybe a second or two making 3 cuts in an 18" log. So what does that mean, the "low" end Echo is a better saw, probably not. We'll see how well the Echo 600P is doing when it hit its 30th birthday having serving it's operator well w/o issues for that many years........FWIW......
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