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HomeAircraftHelicopterGasser Model RC HelicoptersOther › 32:1, 50:1, 100:1 Can someone explain...
01-12-2009 02:22 PM  9 years agoPost 1
iskoos

rrKey Veteran

Orlando, FL

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... what the myth is behind these numbers and what mixing ratio to use if one does NO 3D but all scale like flyings and needs reliable smooth performance from his engine (Zenoah 231 PUH)?

Greatly appreciated...

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01-12-2009 03:24 PM  9 years agoPost 2
predatorman

rrVeteran

Falkland Islands

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I wont try to explain too much but for general flying about I use 40:1 and have done for many hours.

I did have the mix around 30:1 for a few tanks when the motor was new.
I think the most important thing is not to overload the engine...no magical mixtures will help.

Rob

Quality takes........time!

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01-12-2009 05:23 PM  9 years agoPost 3
smallplanes

rrElite Veteran

S.C. ,SSA

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This is the oil i'm going to run after breakin.
http://www.amsoil.com/storefront/atp.aspx


Spectra G 26cc
Jewel
Bat 27cc
Trex 700<br

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01-12-2009 07:28 PM  9 years agoPost 4
erichevy

rrVeteran

Zevenhoven The Netherlands

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To be honest...
The better the oil, the leaner the oil ratio.

For years I use the 2 stroke Aspen fuel from Husqvarna, which has a 1:50 mix. it comes pre-mixed with a full synthetic oil.
It's a alkalyd fuel without the "regular" fuel dopings like benzeen ... so it smells good too
No piston or cylinder scratched/damaged.

Eric.

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01-12-2009 08:19 PM  9 years agoPost 5
iskoos

rrKey Veteran

Orlando, FL

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This is the oil i'm going to run after breakin.
Yep, that's the exact same one I got...

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01-12-2009 09:34 PM  9 years agoPost 6
Christopher J

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Kansas City, MO Californian lost in land of Oz

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I run "Amsoil 100:1" mixed at 2.5oz (or 51:1) Once I run out I'll more then likely switch to the "Amsoil Sabre" mixed at 2oz per gallon (64:1) Most of my flying is scale and camera ships.

Christopher J
same as I ever was
"Still all set & Flying the original"

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01-12-2009 09:55 PM  9 years agoPost 7
iskoos

rrKey Veteran

Orlando, FL

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Chris do you see any critical point between using 32:1 and 50:1 if the oil and fuel are same?

I will use this ship as a camera ship if I can tune the engine well down the road.
Just trying to find what's best...

Thanks

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01-13-2009 12:11 AM  9 years agoPost 8
Christopher J

rrElite Veteran

Kansas City, MO Californian lost in land of Oz

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32:1=4oz per gallon. I'd do that to break in. I'm sure the engine will run just fine at that mix and if that's what you want to do it can't hurt to try. For "me" though that's too much oil. I prefer mixing my Amsoil at 2.5 after the motor is broken in on the camera ships.

On UH-1D scaler I've run as low at 2oz per gallon but I also believe that at 3oz and under you need to have your motor broken and dialed in very well.

Christopher J
same as I ever was
"Still all set & Flying the original"

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