I checked the listed hp from STIHL as 8.6hp for the stock 881. On your Dyno she ran 10.34hp or 1.74hp more than the STIHL given 8.6hp output. I know temp,humidity , elevation and a whole host of other factors come into play when doing this- do you get consistent results run after run? I think that’s a trick set-up but man that had to cost 5grand or more! It’s all about relative results though , as long as you get consistent measurements. I should send you my 064 , she’ll break 10hp on your Dyno no problem-0! Right now I’m limited to the “wood Dyno”
Sure, send in the 064 in, would be interesting to see.
Some models are very close, and others are way of..
I wonder how much we rating has to be done for insurance/epa rating
Over 3-4 good runs they will be within 1-2% across 3 runs. Very repeatable setup.
Just like the 881 I ran a couple months ago was 10.13 hp. Vs this 10.3 that is 2% across 2 different saws and a month or so apart.
Yeh, I have close to 8k wrapped up into it, so I could get good repeatable data run after run. Have over 1100 pulls on this setup.
The older saws, 066/044 /395 are closer to the published numbers for some reason.