7 or 8 tooth sprocket

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How about an 8 tooth on a 460 mag with 20" bar? Would this be better than the 7 tooth, or should I leave it alone?

Ted
 
460Ted said:
How about an 8 tooth on a 460 mag with 20" bar? Would this be better than the 7 tooth, or should I leave it alone?

Ted
Your 77cc saw, (of excellent quality I might add), will easily pull this chain and bar set-up with an 8 tooth. I recommend it. Cheers.
 
460Ted said:
How about an 8 tooth on a 460 mag with 20" bar? Would this be better than the 7 tooth, or should I leave it alone?

Ted


If it cuts fine for you, leave it alone. If you don't know, then just spend $5 (or less) and try it...

I'd just put on a full skip and forget about it, but that's just my 2c from the evergreen state.
 
I would frigging hope so. If I had a $700 chainsaw and it wasn't able to pull a measly 20" bar with an 8 pin and full comp chain, I'd take it back to the dealer and demand a refund. The only people running full skip on a bar that short are people who can't file a chain in the field.
 
OK, another dumb question for you guys.

I have a SXL 925 Homelite (82 cc) in very good condition.

Do you think it will do Ok with an 8t & 20 bar ??

Been thinking of it for a while.
 
Mike mandry said:
OK, another dumb question for you guys.

I have a SXL 925 Homelite (82 cc) in very good condition.

Do you think it will do Ok with an 8t & 20 bar ??

Been thinking of it for a while.
You could run a 28" no problem. 20" is nothing for that saw.
 
Actually, I have a 24"/7t on my other 925 & it does great.

I just put the 20" on this other one because I dont always need that much bar, but I love the power of that (those ) saws.

I've never fooled around with different sprockets. Always used the standard 7t

Simon, where at in Canada are you ??

I do a lot of biz in canada (Tembec)

If Im lucky, I might make it up there one day.
 
Mike mandry said:
Actually, I have a 24"/7t on my other 925 & it does great.

I just put the 20" on this other one because I dont always need that much bar, but I love the power of that (those ) saws.

I've never fooled around with different sprockets. Always used the standard 7t

Simon, where at in Canada are you ??

I do a lot of biz in canada (Tembec)

If Im lucky, I might make it up there one day.
Almost as far West as you can go. Vancouver Island BC.
 
If you have the power to increase chain speed why wouldn't you be better off to stay with the smaller sprocket and take more off the rakers? Every time a tooth passes over a given distance in a cut it dulls a little bit. So wouldn't you be better off to keep the chain speed down and pull a bigger chip? A tooth dulls weather you pull a big chip or little one.
 
If I'm in clean wood, my chains stay sharp for a long time. I also know that the higher HP saws run bigger sprockets with faster cutting times. You can do only so much with just the chain.
 
Marco said:
If you have the power to increase chain speed why wouldn't you be better off to stay with the smaller sprocket and take more off the rakers? Every time a tooth passes over a given distance in a cut it dulls a little bit. So wouldn't you be better off to keep the chain speed down and pull a bigger chip? A tooth dulls weather you pull a big chip or little one.
Marco, a faster chain speed is much smoother in the cut and actually is less likely to grab and kick back. Chip removal is as big of a task as cutting so the faster chain speed results in significantly faster cuts.
 
Marco said:
If you have the power to increase chain speed why wouldn't you be better off to stay with the smaller sprocket and take more off the rakers? Every time a tooth passes over a given distance in a cut it dulls a little bit. So wouldn't you be better off to keep the chain speed down and pull a bigger chip? A tooth dulls weather you pull a big chip or little one.
Marco, a faster chain speed is much smoother in the cut and actually is less likely to grab and kick back. Chip removal is as big of a task as cutting so the faster chain speed results in significantly faster cuts.


ooops, the site locked up on me and I didn't see Ben's post. I'm a day late and a dollar short...
 
I guess at some point the chain would load up with my idea, may stretch more too. Myself, when I start to have that much power on hand I like to get .404 chain. It seems to go longer between sharpenings, slower from the start though I hear. Just using what I have learned from working with a circular sawmill and what a very experienced machinist told me, take a big chip. If you are making a big chip and still have power left over I guess it makes sense to speed things up, that or add teeth.
 

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