Lets speed things up

[rosshuber43]

Now that I'm done ripping with my big saw,(Jons 2083),I'd like to use it to cut firewood.All things being equal I'm not gaining over my smaller saw as the jons cuts the same speed and is a lot heavier.If I'm figuring right by using a bigger rim sprocket I should gain around 12" of chain per second for each increase in tooth.I now have a 7 tooth sprocket,8 tooth sprockets are common and easy to get.Here are the Questions I have,
Who sells 9 or 10 tooth rim sprockets?
Would this saw be able to pull in18" and smaller pine with a 20" bar?
Does increased chain speed pose a hazard?
Thanks,
Rosco

 

[chainsawworld]

russ,
stay with 7 or 8 tooth. i run 9 and 10 for racing with the larger saws on shorter bars in smaller wood. you need to keep the saw in the power range. no need to start burning out clutch packs and drums for what you plan to gain. marty

 

[mikek711]

Marty,
Just wondering if there is more likelyhood of chain derailment with those larger rim sprockets?? (9 - 10 tooth)
Mike.

 

[chainsawworld]

mike,
the problem there is the rim is larger then the heel of the bar. yes you do increase the possiblity of the chain flying off. even more when the carb is tuned for compitetion. marty

 

[timberwolf]

As going from 7 to 8 teeth or 8 to 9, makes about 12% increase in chain speed, you should see about 10 feet per second increase, not 12 inches.

I was considering a 9 tooth for Stihl 066 with 20" or less bar length.

so far I have found only one spot that sells racing sprockets on the web, madesons http://www.madsens1.com/sprktsaw.htm

I'm sure the AS guys that are into racing could give you more insite.

Timberwolf

 

[Tony Snyder]

The 2083 is used around here with 24" bars 7 tooth sprocket in hard woods, not pine.

I would say the 2083 would do fine with an 8 tooth sprocket and 20" bar for firewood or logs.

In theory the larger saw should not outrun the smaller saw until the comparison reaches enough load to tax the smaller saw; then the bigger saw would still stay in power its power band and leave the smaller saw in the dust. I other words your power requirement is low enough that it does not load down either saw.

I heard a logger tell another guy the other day "No sense in carrying a bigger saw than you need. You can only so much power in the stuff were cuttin". He was comparing a 2171 to an 066 where a 24 inch bar could get everything.

 

[rosshuber43]

Thanks guys,Timberwolf is correct,10 or 12 feet per second gain,not 12",don't know what I was thinking.Tony is also right about saw size ,as I have found out,I'll try an 8 toth and see how it goes.May have to get the 266xp back from mom.

Rosco