" what oil/fuel ratio you like to use ??"

[dart]

hi guys
i have been a fan of " amsoil "full synthetic oil once engine is always run in on non synthetic oil.
any way i have used dominator on air cooled non marine two strokes.
and currently use Saber outboard amsloil synthetic oil on my 50 hp mercury(tohatsu).
generally i run the oil/fuel ratio at 50:1 with mods i have done.
the plugs run a nice dry coffee color.
alot of guys reackon with all the mods they run,they like to use 40:1 ratio or even more oil.
i have heard that a little more oil can increase hp ??
and i suppose gives a bit more lubrication,but the amsoil seems such thick good quality oil that at 50:1 is good enough of a oil/fuel ratio,your thoughts please ?
also i came across another amsoil sytnthetic oil called " hp marine " oil,is this any good ??
have you used it before?
im still waiting on amsoil tech dep to get back to me r.e there oils!!
thanks
glen

[dart]

how come no replies ???,doesnt any one use two stroke oil????

[Bunker Hill]

Here is a reply:
Back in the day, 1960's through 1980's, before synthetic oils and before looper engines, in our race engines, KG 4's, KG 7's, 9's Mk 30H and Mk 55h's we ran 2 quarts to five gallons. This was over kill but in a cross flow, that worked pretty well. I today's world, in loopers, I always ran appx. 32 : 1, it seemed like a good number. As far as more horsepower, I have two thoughts:
1) Synthetic burns more completely and may add more power, in loopers only. the theory being that synthetic creates so much lubricity, that rings cant set or seal properly
2) Crossflow engines were designed back when petroleum oils were the only lubrications available and some of the compression in a crossflow comes from the non burnt oil so using petroleum oils can, i believe, raise compression.

On a few side notes...
I would not attempt to "Break in an engine" using synthetic oil, I believe it lubricates so well, that rings may not "Set" properly
and... keep in mind a lower fuelil ratio, lower being 10:1 rather than higher 50:1, will in effect, lean the engine out.
I think you are doing the right thing however, the sparkplugs are the window to an engine's happiness

-Bunker

[Binger]

Here is a reply:
Back in the day, 1960's through 1980's, before synthetic oils and before looper engines, in our race engines, KG 4's, KG 7's, 9's Mk 30H and Mk 55h's we ran 2 quarts to five gallons. This was over kill but in a cross flow, that worked pretty well. I today's world, in loopers, I always ran appx. 32 : 1, it seemed like a good number. As far as more horsepower, I have two thoughts:
1) Synthetic burns more completely and may add more power, in loopers only. the theory being that synthetic creates so much lubricity, that rings cant set or seal properly
2) Crossflow engines were designed back when petroleum oils were the only lubrications available and some of the compression in a crossflow comes from the non burnt oil so using petroleum oils can, i believe, raise compression.

On a few side notes...
I would not attempt to "Break in an engine" using synthetic oil, I believe it lubricates so well, that rings may not "Set" properly
and... keep in mind a lower fuelil ratio, lower being 10:1 rather than higher 50:1, will in effect, lean the engine out.
I think you are doing the right thing however, the sparkplugs are the window to an engine's happiness

-Bunker

Actually synthetic oil's don't burn completely as semi synthetic or mineral oils do.

[Bunker Hill]

Actually synthetic oil's don't burn completely as semi synthetic or mineral oils do.

I was refering to pure petroleum oils, thanks for the clarification
Bunker

[dart]

hi guys
thanks for your replies and info!!
i brought some "redline " race synthetic oil today!!
looks nice thin quality oil
will try it at 50:1 ratio.
quite expensive,cost me $26 aud for 473 ml.
i reackon it may be quite good perf oil,such as protection/lubrication,possble slight more hp,less wear,less gumming up e.c.t
cheers
glen

[Binger]

Lucas carries 2 stroke oil and they sure are trying to support boat racing with there new drag track they built , remember support those who support you http://www.lucasoil.com/products/dis...iid=13&catid=6