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This is just my opinion, so ..........
I think ''stumping'' and ''36 inch bar'' is 2 key words here. Husky only rates the 390s for a 28'' bar, which I know for a fact they have more than enough power to pull a lot more than 28''....but not sure the rest would last that long in ''stumping with a 36'' bar'' conditions. Maybe Im wrong too
Here's an interesting quote I copied and pasted.
Ok for starters there is nothing wrong with a 390/2188 with a 36" bar up north in soft wood country gut in hard wood about a 30" is about max that I would run starting to put to much pressure on the PTO side bearing. Reason if you are liming with a long bar the chain likes to come off a lot easier than a short bar say 24" so the automatic thing to do is tighten the chain super tight so this happens less . But what people don't think about is how much more pressure that you are putting ion the PTO side bearing and with the inboard clutch design of the 2188 there is a farther distance between the bearing and the sprocket than there is on a 395 with a out board clutch .So the more distance between the bearing and the sprocket the more pressure that you are putting on the bearing when running the chain to tight. First the 395's Outboard clutch a plus when running a 33" and above bar length. Second the 395 has bigger crank bearings and a stronger clutch than a 2188/390. Third the 395 is one tough SOB and it is way lighter and cheaper than a 3120/880. So if I haven't made up your mind for you yet PM me and we'll talk. I have owned both 390/2188 is for average timber and the 395xp big timber and Harder hardwood like Hard Maple, Birch, and Beech. Oh and they run forever.
. Never thought about it that way, but you do have a point.
Well............................................. I dunno
LOL! Good one, shiat fellas I have seen 66's put more big wood on the ground here Brad, ah if you could only spend a weekend here. As far as abuse, and not coming apart and holding together they are second to hardly any. I would agree a 395 with the cc diff, and longer stroke I am sure would have more stump power. Agreed high output oiler may be needed. You guys know me I love both and do have more huskies in the shed, but gotta give credit where due, and the 66 has sure earned some. That being said my 2101 in the shed will out torque them all, and oil as much as you can pump. But then guys say oh there heavy. Well how much torque do you want? Put a light bar on it, and run the 3 side by side, and you wont feel enough difference. Trust me I got 25 years in actual wood. My buddy's dad fell quite a few like this, and it was 56 mag 2, and or 064. 750 homelite with a 48in Canon too. I will ask him, may have dropped it with the 750. But he put alot of big wood on the ground with a 56-64. Then went to a 66. The 66 has had one hell of a long run for being infererior. LOL! Its all good I love em all. P.S the 288xp fell and wore a 42in bar here quite often, and held together. Proof some are not made like they used too, and those who put the 288 in there tialights when the 390 came out, don't forget it too soon. Also the ten year old or more 660 that I have in my shed I will put against any new one, with just a dp Muffler stock. They had more torque, smog has added wieght, and become restrictive. Proof was the lighter faster 046 mag, before the ms series. Hope none take this personal just sharing some of what I have seen with my own eyes here, grew up with veteran loggers, and fallers, learned a hell of alot, and always payed attention to saws they run.
