7 tooth VS. 8 tooth rims?

[Husky nut]

any difference? and what is best on a slightly modded saw?

 

[Rotax Robert]

what size of saw? and what size of wood are you cutting?

Rotax

 

[Lawn Masters]

7t will give more torque on most saws if you're talking 3/8 pitch. 8t will give about 14% more chain speed, but 14% less power. same basic deal on .325 I think.

 

[Husky nut]

husky 395 slightly modded and cutting upto 36" pines and oaks

 

[kf_tree]

husky 395 slightly modded and cutting upto 36" pines and oaks

on 2 of my 395's i have 8 tooth sprocket's. one has a 20in bar and one a 28in bar. on the other 2 i have 7 tooth sprockets they run 32 and 36in bars.

 

[klickitatsacket]

Rims are only $5 each. Why not have both and when the situation calls for it switch them out. Small wood or short bar run the 8. In big wood run a 7. Play with different combinations and see what you like best. For extra $5 it seems like cheap entertainment to me.

 

[West Texas]

I agree with Dean. I've played with both on various bar lengths in different woods. And then settled on the combinations that work best for me, in the hard oak I usually cut. But my rule of thumb is short bar 8 and long bar 7.

 

[Lawn Masters]

I too agree with dean. I run mostly just 8T rims, but then again, I prefer 16" bars too. there isnt really much need for more than that here I guess.

 

[Husky nut]

well $5 bucks to most but free to me (work at a husky / stihl service shop)...i posted this to make sure these saws acted just like racing dirt bikes with the optional drive spoket tooth variations (something i'm familar with)

 

[pbtree]

I seem to have luck running the 8t on 20 inch and shorter bars, but I generally like the 7t on anything longer...

 

[SawTroll]

Rims are only $5 each. Why not have both and when the situation calls for it switch them out. Small wood or short bar run the 8. In big wood run a 7. Play with different combinations and see what you like best. For extra $5 it seems like cheap entertainment to me.

Ditto from me too!

I like to use 3/8"x8 and 15" bar on my 361 when cutting small stuff
- mostly the setup is 3/8"x7 and 18" bar.

 

[Rotax Robert]

Just go with a 7 1/2 tooth sprocket.

 

[Stihl Crazy]

KF, what are you running on the 880? I have a 10 on mine but only 21 inch bar.

 

[kf_tree]

KF, what are you running on the 880? I have a 10 on mine but only 21 inch bar.

were running the same set up.............i have a 10 tooth sprocket and 20 in bar.

 

[SawTroll]

Just go with a 7 1/2 tooth sprocket.

Yes, that would be a very nice compromise if you can't afford 2 x 5 USD or so ......... :blob4:

 

[pinus]

7t will give more torque on most saws if you're talking 3/8 pitch. 8t will give about 14% more chain speed, but 14% less power. same basic deal on .325 I think.

This difference 14% 7/8 is valid for all pitches,
but 0.375-7 is by diam comparable to 0.325-8