Please explain why. Chip clearance or what? If I go 3/8, I'll probably be running like a 9-pin rim.
Need a 48"-50" Bar
- Thread starter blsnelling
- Start date
Help Support Arborist Forum:
Please explain why. Chip clearance or what? If I go 3/8, I'll probably be running like a 9-pin rim.
brncreeper
Addicted to ArboristSite
You're gonna be pulling quite a load, so why put the engine in overdrive???
I'll run what ever it can pull comfortably. I was just trying to point out that it'll have more chain speed than a stock saw if that affects my chain selection. I'll probably put a square grind on what ever I go with.
Wet1
Addicted to ArboristSite
A 9 pin in 7' wood?!?!?! :jawdrop: This thing gotta hemi? 
I would imagine you'll want semi or full skip to clear the chips.
I would imagine you'll want semi or full skip to clear the chips.
What are you cutting the wood up for? If you're just making firewood, full skip is fine. If you were cutting wood for the intention of milling, my recommendation would be semi-skip. If were milling, I'd say full-comp ripping chain.
I had an 8-pin .404 on the 41" bar buried in solid Beech and not a bit of struggle. With 3/8 I'll be cutting a smaller curf and movnig less wood. a 9-pin 3/8 should be similiar to a 8-pin .404. I'll just have to try it and see.
Go to about 26 seconds in.
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/c0Z0Dc6O7FU&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/c0Z0Dc6O7FU&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>
So you think I need full-skip for chip clearance? I have no experience on this topic.
Go to about 26 seconds in.
<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/c0Z0Dc6O7FU&hl=en&fs=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/c0Z0Dc6O7FU&hl=en&fs=1" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>
So you think I need full-skip for chip clearance? I have no experience on this topic.
Last edited:
Firewood.
Wet1
Addicted to ArboristSite
At the high chain speeds you're planning on running, I'd guess a square ground 3/8 full skip would probably be your best bet.
Just my 2 cents.
Tree Sling'r
Addicted to ArboristSite
More narrow kerf, less weight = more chain speed. Hence the full skip, less weight - chip clearance won't be an issue with a 9 pin on an 084. In this case less is more IMO.
If you think it's all about weight, then wouldn't that suggest that full-skip would be faster with any length. My reasoning would suggest that if chip clearance isn't the issue, then full-comp would be faster with a power head this size.
Nothing like real world experience. Do you think that's due to chip clearance or chain speed?
Tree Sling'r
Addicted to ArboristSite
As it should.
Brad, my experience is the same, full skip is always faster. Smoother no, but faster no matter what size saw or bar and chain.
I'd guess it's chip clearance. Seems that the further into the cut I get, the slower the saw gets. I can usually pull the saw up out of the kerf a bit and 'clear' the chips to alleviate the problem. This seems especially common on softer hardwoods like silver maple.
Good to know. It seems as if they are about even with an 8-pin and 28" bar. Sure does cut rough when ripping with skip.
Well. You're making me rethink going full-comp on the 36" bar I ordered. I haven't ordered chain for the 36" or 50" bars I ordered today.
Boogieman142
ArboristSite Guru
I have a full comp square ground chain on my 42" bar and pull it with an 8-pin with my 660. I am able to set the dogs and pull in hard maple and black locust....the only thing i noticed is that pulling it faster requires more oil and my 660 doesn't oil the greatest with long bars.
Tree Sling'r
Addicted to ArboristSite
Buy a loop of each and see what you like best for your situation.
I'm thinking maybe get full-comp for the 36" and full-skip for the 50". Yes the one bar is a lot longer but I should still get an idea which one it likes best cutting in the same log.
Here's the big Bur Oak the 50" bar is for. These pics are the first I've seen of the tree. I was told 7' trunk and 36" limbs. It doesn't look that big to me in the pics. More like 5' trunk maybe. The root flare might be 7' foot but more like 5' DBH. The 36" bar would have gotten that done.
The "Grandpa" is the friend of mine that collects big Homelites. He and his two sons are looking for a 750 I guess to help work this tree over
The "Grandpa" is the friend of mine that collects big Homelites. He and his two sons are looking for a 750 I guess to help work this tree over
