661 Oil Test 32:1 vs 40:1 vs 50:1 ?
- Thread starter redbull660
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Ron660
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Fastest to slowest using ALL timed cuts:
1) HP2
2) R2
3) K2
4) R50
5) Saber
There was a 7.1% difference in total cut times between 1st place (HP2) and last place (Saber).
Ron660
Addicted to ArboristSite
So next is HP2 vs 800 off-road? If you need any 800 I'll send you a liter.
Don't forget octane also plays a role in the amount of energy in a given amount of fuel, so octane does effect combustion temperature as well.
RB thanks again for all the hard work. However your theory about the most oils effecting cut times isn't adding up. I'm not pointing this out to be argumentative, just pointing out that the margin of error is much larger than most would believe. And you're own times don't reflect you sluggish theory. You must remove gut feeling from any type of testing.
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RB thanks again for all the hard work. However your theory about the most oils effecting cut times isn't adding up. I'm not pointing this out to be argumentative, just pointing out that the margin of error is much larger than most would believe. And you're own times don't reflect you sluggish theory. You must remove gut feeling from any type of testing.
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Gotcha
Octane has little to no role in BTU per gallon.
KG441c
Keith
R50 and hp2 sounded deeper toned? More torque?
There is no way anyone can reasonably know that.. I suspect the tuning on this particular saw is fairly coarse and is responsible for alot of what is observed.
If that's the case, then there's something wrong with the saw that it cannot tune correctly.
redbull660
Addicted to ArboristSite
or maybe the oil isn't burning off fast enough!
mtronic is always tuning for max RPM
So mtronic is getting that deep tone exhaust sound on the r50 and hp2 at max rpm say for example it's 11k in the cut and 13k out. And at max rpm 11k in 13k out, it's getting screamer tone from 2r and k2. Alright fine. So we throw in a carb that u can tune.
r50 & hp2 so get the deep tone at 11k in 13k out.
next we tune out the scream so we richen. ok so
2r k2 now get deep tone at say 10.5k in cut 12.5k out. Still gonna suck and be slower than hp2 & r50. So what have you accomplished other than proving they suck in a different way?!?!
Just like the gutted muffler. Just because you could "tune it out" doesn't mean it's the best performing muffler mod. Mtronic is smarter than you and I. You try the different oils and the different mods and it will tell you what is best. You don't tell it, by tuning it.
Some of you guys are just too closed minded and biased.
Trx250r180
Saw polisher
I have a pretty good ear for tuning from mx ,of the vids i watched the 4th one sounded like it ran the smoothest in that 661 ,was not a huge difference ,but the bark of the exhaust seems to put out the best power in the cut ,i have watched 3 of the tests ,in all 3 it seemed the same the r50 stuff i guess in that particular saw seemed to be power i like to run if had to pick from the 4 ,the yamaha oil seemed a tad lean or something ,was running out of power loaded at the ends of the cuts .that saw seemed to not compensate as much for some reason .the stopwatch times may show different but i would rather sacrifice a second and have smooth power cutting .
I said at the begining I wasnt going to change what I am doing based on your test. As such I could care less how 2R or any of the other oils tested did... I am simply not vested and do not believe your methods are sound.
Your out of your league and seem to have problems grasping the scientific method. Combine that with a severe need for validation from others and it's no supprise your butt hurt anytime someone questions you.
Right...it's the saw..
That is not my understanding of the matter. From my research lower octane fuel has more energy per give volume. Nevertheless we are in agreement higher octane fuels have no benefit in a work saw.
RB I have done my own testing over the yeas. Just because I didn't make a video of it doesn't mean it didn't happen. Your grasping at straws and attacking, doing so won't help you.
Trx250r180
Saw polisher
It may be what the autotune can compensatr for or it could be the way the oil combusts , without testing a few other saws on the same day same logs etc hard to prove anything ,but in that 661 the r50 seemed to sound better to me.
redbull660
Addicted to ArboristSite
scientific method - yeah dude whatever. I've watched your videos "testing" your 260. And you think my methods are questionable. Get a mirror. We aren't even close in our methods.
validation - nah, I don't care what you think of me. Not in the least. What I worry about Joe Public coming on here spending his time reading all this and listening to you. You have this extreme need to always be right. Your closed minded and completely biased. You have incredible debating skills and thus can easily twist things to your liking. You ignore all valid information and pick the weakest link and attack that to discredit the whole. You are highly manipulative to no end, but to serve your own interests... inner need for being right and respected. Which makes you completely unreliable source of any information.
Bottom line is - I'm trying to share data and have people be open minded and actually learn something and try stuff and provide feedback so we can all get faster saws....ultimately I learn more and get a faster saw win win...because two heads is better than one, 3 or 4...etc. All your doing is using your debating skills to manipulate the thread for your own entertainment.
and nah I am not a conspiracy guy. See it's not just me...I get Pm's from guys all the time saying their experience agrees with what I'm showing. But they don't post because, no one seems to have the balls to stand up to you. Or the common one is it's like talking to a brick wall.
BTW - I was actually hoping 2r would come out on top on this test (why I included it over 710 or si-7 or schaeffers (all very low about equal viscosity to 2R) Because it would of made life a lot easier. You'd be right...granted we would have probably never heard the end of it. But at least we would have a fast oil. But it didn't work out that way and here we are.
and uhh so where is the data? Do something now. Help out. sheesh.
Nah dude I'm dead on.
Right on dude.
So far you information has only confirmed what I've been saying all along more oil, the vast majority of the time, is better. Myself and others were right. Remember not long ago you were betting running 50:1 in a stock saw would give it enough added power it could cut with a ported saw running 32:1. Which was absurd, and showed how little you know. Mentioning what others say about myself in pm's is pretty childish. People who can't take constructive criticism never learn.
Your test proved all the oils work fine, nothing more. Your test isn't scientific data, it is what it is. Be happy with that and move on.
Say hello to John for me in you next pm.[emoji8]
BTU content is essentially related to density. It's kind of an old wives tale that 87 has a higher btu content than premium.
Correct higher octane fuels have a multitude of solvents which raises octane but lowers the burn rate, which means less energy. Sorry it's been awhile sense I was on top of this particular subject, so bare with me.
