Low RPM torque/throttle response felling saw

[Czed]

Local log yard

 

[Czed]

They don’t know how to file.

I have 30/40+ chains homeowner guy's have gave me because they don't want to learn how to sharpen.
And I think it's 9.00 a loop at the local shop
I was doing it for 4.00 a loop but they just buy new mostly anymore.

 

[Czed]

they made an open port, and a closed port during the run of those
which ones on yours?

Steve can make those open ports run
I just have stock
all my 268s are closed ports I can really tell the difference.

 

[huskihl]

they made an open port, and a closed port during the run of those
which ones on yours?

Going off memory here, I think the 810’s and 910’s were open port. 20’s and 30’s were closed

 

[blackbruin]

Going off memory here, I think the 810’s and 910’s were open port. 20’s and 30’s were closed

910 and 930 are open port case fed. 820 and 920 are closed port cylinders.
The 910 doesn't have a windowed piston but the 820/920/30 does..

 

[huskihl]

910 and 930 are open port case fed. 820 and 920 are closed port cylinders.
The 910 doesn't have a windowed piston but the 820/920/30 does..

 

[Czed]

Going off memory here, I think the 810’s and 910’s were open port. 20’s and 30’s were closed

What happened to your uncle huskybill?

 

[Czed]

Interesting on the two piece. That’s all I have.

I did some boring on some fat rounds in my yard last night with a 24” tsumura full wrap. Light and handy. Pulled/lugged it well. I’ll have to try 28” skip. Only thing is, this morning my hands feel a little tingly. I think @Johnmn came up with a way to trim 288 AV springs for a 266, I’ll have to try it. @Czed

Just buy one of everything
400/462/500/7310/572/585/592

 

[huskihl]

What happened to your uncle huskybill?

 

[huskyboy]

The 920 cylinder looks like a 288’s with the lowers feeding thru the piston. The 930 is closed port still but has the lowers open to the case like a 372.

 

[davidwyby]

So I went out and dumped a couple trees with the 266. Worked fine. Then I came home and did some testing and my newer ported 60cc saws stomped on the stock 266 in power, speed, and smoothness…


@mettee starting cuts or cleaning out faces chest high on awkward ground is when you want a light grunt saw that can pull chain from an idle vs. a Cookie Monster.

 

[Gullet]

Cool video, all technique...

https://opeforum.com/threads/totally-underestimated-40ccm-saw.13767/

 

[mettee]

So I went out and dumped a couple trees with the 266. Worked fine. Then I came home and did some testing and my newer ported 60cc saws stomped on the stock 266 in power, speed, and smoothness…


@mettee starting cuts or cleaning out faces chest high on awkward ground is when you want a light grunt saw that can pull chain from an idle vs. a Cookie Monster.
View attachment 344215View attachment 344213

How much does that saw weigh

 

[davidwyby]

How much does that saw weigh

The 266? A couple pounds less than a 7900. But stock, not even in the same ballpark as the 7900 power wise. The 6100 has more snort I think. 6100 weighs about the same.

 

[Woodslasher]

6100 weighs about the same as a 7900.

Edited for clarity.

 

[Mastermind]

Edited for clarity.

Yes it does.

 

[davidwyby]

6100 is 1 lb lighter than 2166, 7900 is 1 lb heavier than 2166. The 6100 is heavy for it’s ccs, but also powerful for its ccs, so…

 

[davidwyby]

I’ll never forget dogging it into dry hard oak with 24” FC 3/8” on it and it mowing right thru.

 

[Woodslasher]

6100 is 1 lb lighter than 2166, 7900 is 1 lb heavier than 2166. The 6100 is heavy for it’s ccs, but also powerful for its ccs, so…

I'm confused, did you mis-type 266 in your first post or is the 2166 comparison in addition to a 266 comparison?

 

[mettee]

The 266? A couple pounds less than a 7900. But stock, not even in the same ballpark as the 7900 power wise. The 6100 has more snort I think. 6100 weighs about the same.

Yeah the dolmar in the pic.

I looked it up online the 6100 is 13.3 lb to a 7900 at 13.8, no bars.

What is snort, is that torque?

You can run full skip in situations like that too.