Mo' oil makes mo' powa!
661 Oil Test 32:1 vs 40:1 vs 50:1 ?
- Thread starter redbull660
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KG441c
Keith
Trx250r180
Saw polisher
I spoke with a customer of mine that runs Stihl Ultra @ 40:1 and the crown of his pistons are completely clean. The difference? He runs 100LL fuel. This would suggest that the fuel has as much to do with it as the oil. Food for thought
Is it because the race gas is not burning as hot ?
Trx250r180
Saw polisher
His answers remind me of how DC used to answer stuff ,would not go right out an blurt an answer ,but would give you hints so you learn something by having to figure it out .
AV Gas. I don't know.
Some of it is. THE CORRECT STUFF!.
Somes stuff you incorrectly infered..no supprise there.
Avgas distillation curve is such that unless you run real hot you end up puking liquid fuel out the exhaust is it doesn't vaporise when it reaches the crankcase or during combustion. This will wash the piston clean.
All gasoline has roughly the same BTU content provided it's not doped with ethanol or in the case of race fuel it's not doped with MTBE, Isoprene, etc.
Give a man fish or teach him to fish? Lots of people want hand outs around here..
Metals406
Granfodder Runningsaw
All mosquitos were harmed in the making of this video.
Super hunky is a entertaining guy but their are some technical mistruths in that article.
You still trying to figure out how a motors fuel requirements increase with load?? That's priceless! Maybe in a few years you will get it? OTOH probably not.
Priceless
KG441c
Keith
Which are?
One other thing about avgas is that it's a very clean fuel, lead withstanding. It.will not form.gum or varnish for a very long time. Like 5 years or more. ASPEN fuel that is marketed in Europe is a high alkylate fuel similar to avgas but minus the lead and also it has a more appropriate distillation curve.
Pump fuels are so.low in quality now days that they end up forming much of the deposits you see in a two cycle. If you use of a good race fuel like VP C12 or MR2, which both have distillation curves compatible with a two cycle you will have a pretty clean motor provided you use a decent quality oil.
Pump fuels are so.low in quality now days that they end up forming much of the deposits you see in a two cycle. If you use of a good race fuel like VP C12 or MR2, which both have distillation curves compatible with a two cycle you will have a pretty clean motor provided you use a decent quality oil.
bikemike
loud pipes save lives
Bet they had a mosquito problem to deal with. Fog em out
Trx250r180
Saw polisher
Was brought up that way ,good saying to go by ,Give a man a fish he eats for a day ,Teach a man to fish he eats for a lifetime .
The comment on octane is a huge blanket statement that isnt universaly true nor false. The info for the most part is dated, IE the Husky test, so it shouldn't be applied the present.
The overall jist if it is correct.
Ron660
Addicted to ArboristSite
****
I use Sunoco 110 with my Motul 800 off-road mixed at 32:1. My compression is over 210psi. Works for me.I spoke with a customer of mine that runs Stihl Ultra @ 40:1 and the crown of his pistons are completely clean. The difference? He runs 100LL fuel. This would suggest that the fuel has as much to do with it as the oil. Food for thought
That's what I said about a 1,000 posts ago. Like I said, no new information in this thread!!![emoji8]I spoke with a customer of mine that runs Stihl Ultra @ 40:1 and the crown of his pistons are completely clean. The difference? He runs 100LL fuel. This would suggest that the fuel has as much to do with it as the oil. Food for thought
So did I when Brad posted the pic of that 441 milling piston.. Was that like 50 pages back?
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