Author Topic: .325 to 3/8 Picco Feasability  (Read 2243 times)

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Offline Cut4fun .

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Re: .325 to 3/8 Picco Feasability
« on: May 02, 2014, 07:38:35 pm »
I read about a set up for 024 026 261 in picco. I will copy and paste. Make sure of this info because I dont know.

NOT MY INFO


Rollomatic E 3/8 Picco bar in a 3003 mount. Your dealer probably doesn't stock this thing.  But it lets me run Picco/Low-Pro chain on my MS261

3/8" LP 63PS3 60DL

 Stihl only makes 3/8P rim sprockets in the Mini format so don't go thinking you can run this exact setup on your MS460 etc.

3/8" P Mini in 7 and 8 pin


.325" Mini in 7 and 8 pin
3/8" Mini in 7 pin
3/8"P Mini in 7 and 8 pin




 MS261C-M Try on three types of chisel chain. All are chisel type, round filed, but they are all different pitches. I also had two different size sprockets for the .325 and 3/8P chains. I think you will be surprised at the results.

 3/8 PS3 on 8 pin is running about 8.5-9 secs a cut.

 3/8" RS 7 pin and PS 8 pin about the same, 9.5-10 secs a cut.

 .325 7 pin was about 10 secs 8 pin was 11.5.







The .325 and 3/8 were closer than I thought they would be. But the difference in available torque is quite obvious to me with the saw in my hands. The 3/8ths def. loaded the saw a bit more. The video goes to prove that while the 261 certainly has the grunt to pull 3/8" on a 16" bar like that, it won't do it as well as the other options. The 3/8" 7P was the slowest run of them all IMO. There are other reasons to dislike 3/8" on this size saw too. In smaller, twiggy wood, 3/8ths will grab and bind the saw more than .325 and a lot more than 3/8"P. In bigger wood, especially with longer bars or the nose buried, the extra power consumption will be more apparent.

The 3/8 7 pin had 1 cut that was faster than any of the .325's and some slower..
the PS was the clear winner here though.
It's fast stuff...
Can I put it on the 028??
And what bar am I gonna need again??
I took fastest times..
.325 7 pin = 10.3
8 pin = 10.7
3/8 7 pin = 9.6
PS3 7 pin = 8.4
PS3 8 pin = 7.3
Wood started to shrink at the end...
This was a really good comparison...


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