661 Oil Test 32:1 vs 40:1 vs 50:1 ?
- Thread starter redbull660
- Start date
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KenJax Tree
Terraphobic
Yes i do....i use it in my dirt bike
KG441c
Keith
Chris why the highend oil for the bike but not the saws?
Has a higher flashpoint!
Maybe because in a low stress application like a saw it's the wrong oil for the application?
KenJax Tree
Terraphobic
My bike isn't stock at all....my saws are[emoji1]
Bikes, karts, etc put out WAAAAAY more HP for a given engine size. They are far more stressed than a chainsaw engine. There's simply not room in a chainsaw package to build that kind of performance.
R50 has the highest flashpoint. 800 2T Road Racing has 0.1 higher viscosity at 100°C.
Way lower BMEP on a saw. And pretty low load to boot.
KG441c
Keith
I believe you are way off on that. A saw is high stress imo especially milling and cutting bigwood non stop and noodling
What we have to caution for here, is taking a single piece of information, possibly out of context, making an uneducated assumption, and then running with it as fact. I watch this happen all the time, including this thread. I'm sure I've been guilty of it myself. We're not doing much more than guessing, including myself. The risk here is, others will suddenly jump on that bandwagon, and all of the sudden, it's fact. The fact of the matter is, none of us have the knowledge or means to really figure this out. That's why I say to simply pick a known good oil and run it at a safe ratio. You're really not going to do much better than that without a PHD in Tribology and a lab with significant resources to back it up. In the mean time, I'm thoroughly enjoying most of the conversation and seeing the results that the OP comes back with. Make sense?
Not even remotely close. Neither the porting, induction, or exhaust is in the ball park of what is employed on motorcycles, quads, sleds, etc.
KG441c
Keith
Well we r pissing our money away on these oils then?
KenJax Tree
Terraphobic
Pretty much...thats why my Lucas is only $30 a gallon[emoji1]
Quite possibly. Same with your insurance money. Like I've said before, most all oils made today are very good. I'm only looking at this as protection for that near catastrophic event, which isn't likely to happen. I fully believe that the amount of oil is more critical than the brand of oil. The truth be told, I run Baileys Full Synthetic as much or more than anything else.
They differance between the highest end oil and the lowest offer is very little in the way of insurance.
KG441c
Keith
I look at it like protection from double condoms!! Necessary? No!! But probably would make me feel better protected!! Lol!!!
KenJax Tree
Terraphobic
Just a little FYI Keith....2 condoms isn't really gonna make anything FEEL better[emoji23]
KG441c
Keith
Lmbo!! Sensitivity no but future security yes!!!
Let me put this in perspective. A factory built 125cc dirt bike makes more than 40 HP. What does a 3120XP make? Only 8.4HP. An 80cc dirt bike makes 20-25 HP. A ported 461 only makes 8 HP. The power output of a chainsaw, even ported, is quite low. The limiting factory is space. These other engines are water cooled, have reed induction, way more advanced porting, and a tuned pipe. All of these are huge factors that a chainsaw simply doesn't have.
