Amsoil Saber, Tanaka Perfect Mix, Universal One-Mix 80:1 100:1 affect RPM?

Arborist Forum

Help Support Arborist Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

SEAM

Addicted to ArboristSite
. AS Supporting Member.
Joined
Aug 12, 2013
Messages
1,768
Location
Japan
Besides the oil/ratio used the speeds the engine is run at are also vital.
In my experience, with modern saws revving up to 13,000 rpm and more the engine will be torquier when set somewhat (approx. 500 rpms) below the max. speed rating which will never be reached in the cut anyhow.
Friction increases drastically at higher speeds as does the resulting temperature.
 
dsell

dsell

Addicted to ArboristSite
Joined
Mar 4, 2009
Messages
1,864
Location
Kansas
Besides the oil/ratio used the speeds the engine is run at are also vital.
In my experience, with modern saws revving up to 13,000 rpm and more the engine will be torquier when set somewhat (approx. 500 rpms) below the max. speed rating which will never be reached in the cut anyhow.
Friction increases drastically at higher speeds as does the resulting temperature.
I've noticed that too. Sometimes you have to fatten them a bit to get the power in the cut.
 
HarleyT
Joined
Dec 6, 2014
Messages
21,238
Really, 40 years later, doesn't make it funny.
I'll stop now. But, it is amazing how quickly this stuff fades away from common knowledge, so it is good to talk about stuff, because it isn't really written down.
Like my second concert that I attended, was the Who in 1979.
 
Deleted member 149229
D

Deleted member 149229

Guest
Really, 40 years later, doesn't make it funny.
I'll stop now. But, it is amazing how quickly this stuff fades away from common knowledge, so it is good to talk about stuff, because it isn't really written down.
Like my second concert that I attended, was the Who in 1979.

Now we have revisionist history. I saw the Doobie Broothers in Erie, Pa in 1975 I think. Believe it or not, their opening act was Heart.
 
Deleted member 149229
D

Deleted member 149229

Guest
Can't remember, not that that's a shock, but they opened with either Barracuda or Magic Man.
 

Latest posts

Top