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RE: Changes? - 4/20/2005 5:19:02 PM   
chuckb13


 

Posts: 30
Joined: 12/13/2003
From: Hunlock Creek, PA, USA
Status: offline 		Fuelman,

I recently purchased a Super Tigre G-90 and am curious to see what fuel you would reccomend. The directions state you need 5-15% nitro and 18%-20% oil. I am new to Super Tigre engines and want a fuel that I can break the motor in with but also use at the field. Any advise would be greatly appreciated.

(in reply to Fuelman)
       Post #: 151

RE: Changes? - 4/21/2005 12:33:39 AM   
Fuelman


 

Posts: 980
Joined: 12/31/2001
From: Jordan, NY, USA
Status: offline 		Chuck B13
Since you live in PA, I would highly recommend one of the 5%, 10% or 15% blends from S&W. Their standard fuels contain a castor synthetic blend at 18 or 205 total oil and it is fantastic fuel. They are in Easton PA, phone 610-252-2024, tell him I told you to call.
Back to the subject, Any of the national brands that fall within the recommended nitro content that contain a castor/ synthetic blend. I have always touted the benefits of castor oil in reasonable quantities in modern engines. Cooper's, S&W, Omega, and a couple other popular brands would all be just fine for your 90.


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Cooper Fuels LLC

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       Post #: 152

RE: Changes? - 4/21/2005 12:45:47 AM   
tailskid



Posts: 5413
Joined: 11/30/2001
From: Tolleson, AZ, USA
Status: offline 		Fuelman, what fuel should we use out here in Arizona?

Jerry

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       Post #: 153

RE: Changes? - 4/21/2005 12:54:17 AM   
Fuelman


 

Posts: 980
Joined: 12/31/2001
From: Jordan, NY, USA
Status: offline 		Hey Jerry,
Mine of course.


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Cooper Fuels LLC

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       Post #: 154

RE: Changes? - 4/21/2005 4:31:21 PM   
chuckb13


 

Posts: 30
Joined: 12/13/2003
From: Hunlock Creek, PA, USA
Status: offline 		Unfortunately the area I live in is about 2 hrs north of easton and every shop around me either sells omega or cool power. I havent put any fuel in the engine yet. I did buy the omega since it was 17% oil and 15% nitro. Should I add aditional oil to get the oil % above 18 or would omega by itself be ok to use without any additional oil. I have 3 planes and would be running all 3 on the same fuel. I have an tiger thunder .42 an os .46ax and the Super Tigre G-90. Any advice would help. Thanks a bunch. I am actually going down to philadelphia next friday so I may have to make a quick stop at S&W to get their fuel. Couldnt hurt.

(in reply to Fuelman)
       Post #: 155

RE: Changes? - 4/23/2005 1:51:29 AM   
Fuelman


 

Posts: 980
Joined: 12/31/2001
From: Jordan, NY, USA
Status: offline 		Chuck,
the Omega will be fine, if you want to add a couple ounces of castor or synthetic to it that will not hurt a thing, but you're OK without doing that.
I would call S&W and see if you could arrange something, his fuel is top notch.


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Cooper Fuels LLC

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       Post #: 156

RE: Changes? - 4/30/2005 8:03:10 AM   
RossW.au


 

Posts: 31
Joined: 4/27/2005
From: Toowoomba, AUSTRALIA
Status: offline 		Fuelman,
To mix fuel using weight measurements, use home brew buddy available http://www.taa.org.au/html/home_brew.html . This program uses the SG of the fuel and oils and temperature coefficients to determine the correct weight to attain the correct volumetric ratio's.

Ross

(in reply to John Palica)
       Post #: 157

RE: Changes? - 4/30/2005 11:44:46 AM   
Fuelman


 

Posts: 980
Joined: 12/31/2001
From: Jordan, NY, USA
Status: offline 		Ross,
Yes, that is a nice tool if you choose to work in small batches (few liters at a time) and use a kitchen scale. I still prefer measurement by level volume at a constant temp.


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       Post #: 158

RE: Changes? - 5/2/2005 12:52:34 AM   
RossW.au


 

Posts: 31
Joined: 4/27/2005
From: Toowoomba, AUSTRALIA
Status: offline 		Fuelman,
To mix fuel in small batches, I can not think of a more precise method. It takes into account the different expansion rates of the different chemicals. Obviously for a commercial application it would not be suitable, larger amounts involved. Do you sell straight synthetic oil? What is the oil called, and is it available in Australia?

Ross

(in reply to Fuelman)
       Post #: 159

RE: Changes? - 5/2/2005 1:49:30 AM   
Fuelman


 

Posts: 980
Joined: 12/31/2001
From: Jordan, NY, USA
Status: offline 		Yes, we sell our oils.


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       Post #: 160

RE: Changes? - 5/2/2005 3:02:02 AM   
RossW.au


 

Posts: 31
Joined: 4/27/2005
From: Toowoomba, AUSTRALIA
Status: offline 		Fuelman,
Is it available in Australia?

(in reply to Fuelman)
       Post #: 161

RE: Changes? - 5/2/2005 6:38:52 AM   
Quick 1


 

Posts: 213
Joined: 7/6/2003
From: West Chester , OH, USA
Status: offline 		First let me apologize if you have covered this already. I fly and mess around with nitro trucks and cars and in all my years of beginning this hobby have really not known the affects of the two different fuels in different applications (Nitro cars and Aircraft) Why do they say, do not use airplane fuel in nitro car motors or vice versa?

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       Post #: 162

RE: Changes? - 5/2/2005 12:56:09 PM   
Fuelman


 

Posts: 980
Joined: 12/31/2001
From: Jordan, NY, USA
Status: offline 		Good question Jon,
quote:

Why do they say, do not use airplane fuel in nitro car motors or vice versa?


Lets not let the flames get out of hand here folks, this is my opinion.
First of all- many car fuels have low oil contents, usualy around 10% to 15% or so. That is where the little hi-revving, over cooled engines are most responsive in transition and top end.
Second- Many airplane fuels contain between 16% and 22% or more in total lubricant because that is what many engine manufacturers recommend.

To answer your question, car makers recommend car fuel because they more than likely have a car fuel blend made for them and want you to buy the very expensive car fuel (with their name on it of course). The engines will run just fine with most car fuels on the market with the appropriate nitro content.
No airplane engine manufacturer that I know of has a fuel made for them, so they just recommend a fuel which contains XXXX and XXX. I have not seen an airplane engine instruction book that recommends a real low oil for a common use sport engine. I have seen one that recommends 15% or more, and that is about as low as I've seen recently.

So, unless you are real sharp on the needles and the car fuel has some pretty spectacular oils in it, you may not want to run a low oil car fuel in an airplane or heli engine. (I have several customers that do, but thats a different story). Now, you can run a high oil airplane fuel in a car engine without any problems, you just will not have the performance or the super crisp transition. The extra oil in a car engine will change the tune considerably, you will need to open the high and low speed needles up a considerable amount to get the same amount of burnable mixture in the combustion chamber and they will run a touch warmer.

You will not hurt a car engine by running a high oil fuel through it, it just needs to be tuned correctly.


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       Post #: 163

RE: Changes? - 5/2/2005 6:09:41 PM   
Quick 1


 

Posts: 213
Joined: 7/6/2003
From: West Chester , OH, USA
Status: offline 		Thank you very much for your quick response and good info

(in reply to Fuelman)
       Post #: 164

RE: Changes? - 10/11/2005 2:13:20 PM   
michael96048


 

Posts: 2
Joined: 10/11/2005
From: napa, CA, USA
Status: offline 		Hi all.....I am new to this site and I have a problem. I am in the Army and deployed to Iraq. I would love to have my T-Maxx sent out here but as you probably know its not legal to ship nitro via air. I do have access to some materials to make the fuel but not all of them. I have methanol and synthetic lube but no nitro. I wanted to know it I can still use a mixture of methanol and synthetic oil to power my truck. If I can, let me know what mixture I should use....I was thinking 20% synthetic oil and 80% methanol. Thank you for all of your help on this.


Michael

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       Post #: 165

RE: Changes? - 10/11/2005 6:05:17 PM   
Dr Nitro


 

Posts: 162
Joined: 11/12/2002
From: The Great Midwest, USA
Status: offline 		Michael,
What synthetic oil are you talking about? Rather than chance it, have whoever is going to ship you your truck, send a quart of castor oil with it, that way you'll be sure you can make it mix with methanol. No problems shipping castor.
And yes, 0% nitro will work in a car engine if you remove the head shims, use a hotter plug and take the time to tune it so it runs good on it. It will probably need to be leaned out both high speed and low speed needles. 20% oil is probably way too much, but it could be made to work, I was thinking about m