What oil is best? and what ratio?

[mdavlee]

Video is uploading now. Felt slower.

 

[mdavlee]

 

[Canadian farm boy]

Very interesting results. The first thing I noticed was the sound of the exhaust. The 87 seems to have more of a deeper sound with a bit more pop. I also noticed the 87 was easier to hear the saw 4 stroking. It also sounded to me like the 87 was holding rpms a touch better in the cut. May of just been exhaust note though.

 

[KenJax Tree]

You guys should start an octane thread, or some such, IMO! This is one of those beastly long threads that has morphed into some pretty awesome back and forth for the jv team such as myself to enjoy/learn from. But sheesh, you see a thread with this moniker, and then see 45 pages, zoiks!

You should see the one on Arboristsite, its about 450 pages and over 8500 posts.


#patheticbuddies

 

[wildroamer]

Erm...Ahh... I'm out of that place officially now..

 

[mdavlee]

Very interesting results. The first thing I noticed was the sound of the exhaust. The 87 seems to have more of a deeper sound with a bit more pop. I also noticed the 87 was easier to hear the saw 4 stroking. It also sounded to me like the 87 was holding rpms a touch better in the cut. May of just been exhaust note though.

Yep. Every time I tested 87 was faster. Looks like dumonde was the fastest oil by about 4%. Not,much but when .01 count racing it adds up

 

[Canadian farm boy]

Yep. Every time I tested 87 was faster. Looks like dumonde was the fastest oil by about 4%. Not,much but when .01 count racing it adds up

What's the flash point of the dumonde?
What's the flash point of the hp2?

 

[mdavlee]

What's the flash point of the dumonde?
What's the flash point of the hp2?

Dumonde no clue. Hp2 is 210 or something like that.

 

[Ron660]

If I can get time I'll try the 87 and 94 in the pine cants with the 346 or 562. They were 3 second range and the 7900 was in the 1.1 with a decent chain.

Throw in that 046 you mill with.

 

[mdavlee]

Throw in that 046 you mill with.

I may in a day or two. I got a new modded carb for it and have to get it tuned. It flooded yesterday so it hasn't been started since I got the carb. I know the milling cuts on back to back slabs were way different from 87 to 94 in time.

 

[Keith Gandy]

87 dumonde

Dang!!! I want a Dolmar!!!

 

[mdavlee]

Dang!!! I want a Dolmar!!!

I been telling you guys they're fast. I'd be lucky to be within .5 seconds with the 46

 

[Ron660]

I may in a day or two. I got a new modded carb for it and have to get it tuned. It flooded yesterday so it hasn't been started since I got the carb. I know the milling cuts on back to back slabs were way different from 87 to 94 in time.

To me timing cuts milling would definitely tell you if there's a difference in performance with octanes.

 

[mdavlee]

4 minutes 20 seconds to 6 minutes 40 seconds.

 

[Canadian farm boy]

To me timing cuts milling would definitely tell you if there's a difference in performance with octanes.

I agree. It would be a lot easier to see the difference in a cut that last 5mins compared to a cut that last 1 sec. I think it would also be interesting to see the difference in jug temps after a long cut. Maybe use a point and shot temp gun right after finishing the cut

 

[mdavlee]

I agree. It would be a lot easier to see the difference in a cut that last 5mins compared to a cut that last 1 sec. I think it would also be interesting to see the difference in jug temps after a long cut. Maybe use a point and shot temp gun right after finishing the cut

The 8x8 is the most consistent wood I have here to test in. If I can find one I'll get one to check.

 

[Kozak Logging]

What kinda wood is that? Soft or hardwood? what species do you mostly test with?

 

[mdavlee]

White pine. I have a small stick of oak. It might make a 10x10 if I milled it up.

 

[Kozak Logging]

I seen a vid today of a guy who tested a husky vs a jonsered 670 with the 272 kit. the husky cut through a block in 11 secs and 670 was 21 seconds, he switched chains to a diff brand chain and got 11.07 secs lol. I think he just had a dull chain, but claiming husky chains cut faster haha

 

[Canadian farm boy]

they are nearly identical. 221 and 225.

Interesting??? How does the viscosity compare?