Fuji and Amsoil 100:1
08-12-2004, 08:44 AM
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Fuji and Amsoil 100:1
Can you run Amsoil 100:1 premix at 40:1 in this engine? I run 100:1 in my Gasser heli at 60:1 with no prolbems.
Any info will help.
Thanks,
Brian M.
Any info will help.
Thanks,
Brian M.
08-12-2004, 11:51 AM
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RE: Fuji and Amsoil 100:1
WHile you can do this, it is not recommended for RC applications.
ORIGINAL: lifesintheair
Can you run Amsoil 100:1 premix at 40:1 in this engine? I run 100:1 in my Gasser heli at 60:1 with no prolbems.
Any info will help.
Thanks,
Brian M.
Can you run Amsoil 100:1 premix at 40:1 in this engine? I run 100:1 in my Gasser heli at 60:1 with no prolbems.
Any info will help.
Thanks,
Brian M.
08-12-2004, 12:00 PM
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RE: Fuji and Amsoil 100:1
Why would you wanna do that? What purpose should this mixture have? Amsoil is designed to be mixed 1:100, provided adequate cooling is guaranteed. If think to mix it that way to break in a new engine, my answer is: DON'T ! Break in the engine with standard (ashless) 2-stroke oil and switch to Amsoil once the engine is really free. The highest mixture you should run with Amsoil is 1:80.
08-12-2004, 12:04 PM
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RE: Fuji and Amsoil 100:1
The engine isn't new. It is already broke in. I use the 100:1 amsoil at 60:1 in a G26 heli engine with the manufacture reccomendations. The mix instructions on the bottle goes all the way down to 50:1. If I wanted 40:1 I would only add 2.5-3 oz to a gallon to come up with that.
Brian M.
Brian M.
08-12-2004, 12:18 PM
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RE: Fuji and Amsoil 100:1
This is from Aircraft proving grounds from the moderator that replied to this's site" http://www.rcaircraft.net/ "
So why won't this work for me?
Thanks, Brian M.
So why won't this work for me?
Thanks, Brian M.
"New to Gas
By Branwell
Fuel/Oil mixture:
Most 2-cycle oils on the market will work with R.C. Gas motors.
Saying that, a high quality synthetic oil will burn cleaner and help the motor last longer.
Amsoil 100-1 mix mixed at 100-1 has a very good reputation for keeping the motor clean and providing very good protection.
Klotz R/C lube is another good one mixed at 50-1.
A note on mixture:
A Glow motor relies heavily on its fuel for cooling and timing. Without a pump and regulator, you have to set them very rich to have a good run.
The Gas motor on the other hand really doesn't rely as much on fuel for cooling and has a regulated carb. This means that you set the high end for peak and go rich only slightly, not enough to realize an RPM change. This is important because if you set it too rich, you will have a horrible midrange response."
By Branwell
Fuel/Oil mixture:
Most 2-cycle oils on the market will work with R.C. Gas motors.
Saying that, a high quality synthetic oil will burn cleaner and help the motor last longer.
Amsoil 100-1 mix mixed at 100-1 has a very good reputation for keeping the motor clean and providing very good protection.
Klotz R/C lube is another good one mixed at 50-1.
A note on mixture:
A Glow motor relies heavily on its fuel for cooling and timing. Without a pump and regulator, you have to set them very rich to have a good run.
The Gas motor on the other hand really doesn't rely as much on fuel for cooling and has a regulated carb. This means that you set the high end for peak and go rich only slightly, not enough to realize an RPM change. This is important because if you set it too rich, you will have a horrible midrange response."
08-12-2004, 08:04 PM
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RE: Fuji and Amsoil 100:1
Brian,
Mixing oil at lower than recommended amounts can cause fowling of the plug and sticking rings. If you want to mix oil at lower ratios, then go with a oil specifically made for lower ratios.
Mixing oil at lower than recommended amounts can cause fowling of the plug and sticking rings. If you want to mix oil at lower ratios, then go with a oil specifically made for lower ratios.
ORIGINAL: lifesintheair
This is from Aircraft proving grounds from the moderator that replied to this's site" http://www.rcaircraft.net/ "
So why won't this work for me?
This is from Aircraft proving grounds from the moderator that replied to this's site" http://www.rcaircraft.net/ "
So why won't this work for me?
08-12-2004, 08:16 PM
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RE: Fuji and Amsoil 100:1
If you purchase the Amsoil 2000 with is recommended at 50:1 and use it at 40:1 then you will be OK.
ORIGINAL: lifesintheair
So if I buy the 50:1 and lower amsoil It will work then at 40:1
So if I buy the 50:1 and lower amsoil It will work then at 40:1
08-13-2004, 03:24 AM
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RE: Fuji and Amsoil 100:1
Actually..I have a quart of Amsoil 100:1 mix sitting right here and there is a chart for mixing at lower ratios right on the back and it says "For "servere service" applications, which include racing motors and hot operating workhorse motors that run continuosly for extended periods of time, richer mix ratios of 50"1 and 80:1 are recommened"
It says nothing about buying a different oil and I've seen Amsoil used at 40:1 in a ZDZ 80 for almost 4 gallons and no problems. Now your fuji motor is no different really that any other motor other than craftsmanship. Heck Zenoah's two cycle oil is 100% synthetic, so why not just run Amzoil? People are doing it and they run fine.
My suggestion since the motor is already broken in would be to mix up some 100:1 and try it out, you won't hurt anything and you maybe suprised.
It says nothing about buying a different oil and I've seen Amsoil used at 40:1 in a ZDZ 80 for almost 4 gallons and no problems. Now your fuji motor is no different really that any other motor other than craftsmanship. Heck Zenoah's two cycle oil is 100% synthetic, so why not just run Amzoil? People are doing it and they run fine.
My suggestion since the motor is already broken in would be to mix up some 100:1 and try it out, you won't hurt anything and you maybe suprised.
08-13-2004, 10:29 AM
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RE: Fuji and Amsoil 100:1
So if I buy the 50:1 and lower amsoil It will work then at 40:1
08-13-2004, 11:35 AM
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RE: Fuji and Amsoil 100:1
Amsoil, or other oils.
It all depends on the oil manufacturer recommendations. Some synth. oils just won't mix well at high oil contents. If the manufacturer states 50:1 / 100:1 that is the range in which the oil can be mixed. An example is BellRay racing oil, which will not mix below 50:1. Try 40:1 and trouble is waiting to happen. (My ancient MX experience)
Fouling of plugs is not a result of oil content, but a result of plug selection, or too rich a mixture setting, be it the Low needle or the High needle. Many engines run quite well at 15:1, and keep their plugs clean, which provides proof of above statements. We ran a 50cc 12 hp engine at a 20:1 mix using a quite cold racing plug. It would foul at any gas-oil mix ratio when not allowed to come up to working temperature quickly. A hotter plug would solve that, but at the same time not allow prolonged full power without detonation. Of course, our low specific output RC engines will not have this narrow selection range of all components involved.
As final word of caution, oil is not equal to oil. Stick to the engine manufacturer's recommendation. It is he who provides warranty in the end, not the guy at the gas station who sells you the oil he has in stock.
It all depends on the oil manufacturer recommendations. Some synth. oils just won't mix well at high oil contents. If the manufacturer states 50:1 / 100:1 that is the range in which the oil can be mixed. An example is BellRay racing oil, which will not mix below 50:1. Try 40:1 and trouble is waiting to happen. (My ancient MX experience)
Fouling of plugs is not a result of oil content, but a result of plug selection, or too rich a mixture setting, be it the Low needle or the High needle. Many engines run quite well at 15:1, and keep their plugs clean, which provides proof of above statements. We ran a 50cc 12 hp engine at a 20:1 mix using a quite cold racing plug. It would foul at any gas-oil mix ratio when not allowed to come up to working temperature quickly. A hotter plug would solve that, but at the same time not allow prolonged full power without detonation. Of course, our low specific output RC engines will not have this narrow selection range of all components involved.
As final word of caution, oil is not equal to oil. Stick to the engine manufacturer's recommendation. It is he who provides warranty in the end, not the guy at the gas station who sells you the oil he has in stock.
