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Search: Posts Made By: Fuel Dinosaur
Showing results 1 to 25 of 141
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Forum: RC Fuels
07-07-2012, 01:00 PM
Replies: 1
Views: 1,589
Posted By Fuel Dinosaur

RE: MORGAN MV and other Morgan fuels

I believe 30% and certainly 50% castor in 4-stroke engines is far too much castor. I have mixed all my own fuels for my Saito .91 and 170 radial and many older engines for over 50 years now. I am...
Forum: RC Fuels
05-15-2012, 09:58 AM
Replies: 27
Views: 10,360
Posted By Fuel Dinosaur

RE: Mobil Jet Oil II mixing with Methanol

Mobil Jet II is not a very safe oil to use on a regular basis and I do not recommend it. There are other, better and safer oils to use. I have used dozens of different oils over the years and it is...
Forum: RC Fuels
11-23-2011, 04:40 PM
Replies: 10
Views: 4,144
Posted By Fuel Dinosaur

RE: TEST: How nitro content effects RPM

You can slightly change the compression ratio, by removing or using thinner shims, or by redesigning the head. You can also vary performance by the heat range of the glow plug, by using fairly dry...
Forum: RC Fuels
11-23-2011, 04:38 PM
Replies: 10
Views: 4,144
Posted By Fuel Dinosaur

RE: TEST: How nitro content effects RPM

You can slightly change the compression ratio, by removing or using thinner shims, or by redesigning the head. You can also vary performance by the heat range of the glow plug, by using fairly dry...
Forum: RC Fuels
11-19-2011, 03:16 PM
Replies: 10
Views: 4,144
Posted By Fuel Dinosaur

RE: TEST: How nitro content effects RPM

Although the oil contents are slightly different, it looks like doubling the nitromethane content resulted in an 11% increase in speed. Nitromethane results in more power, a better idle, slightly...
Forum: RC Fuels
10-01-2011, 01:50 PM
Replies: 5
Views: 4,722
Posted By Fuel Dinosaur

RE: 2 stroke fuel in a 4 stroke engine

2-stroke fuels with high castor work fine in 2-stroke engines, but NOT well in 4-stroke engines. I recommend 0-4% maximum castor in 4-stroke fuels for Saito and other 4-stroke engines. Too much...
Forum: RC Fuels
06-06-2011, 03:32 PM
Replies: 11
Views: 28,158
Posted By Fuel Dinosaur

RE: NITROMETHANE SUBSTITUTE.

You are right, we did use nitrobenzene. It is also called Oil of Mirbane, and is the great smell when you open a fresh can of Kiwi shoe polish. We also used propylene oxide, tried ethanol (did not...
Forum: RC Fuels
06-06-2011, 08:13 AM
Replies: 11
Views: 28,158
Posted By Fuel Dinosaur

RE: NITROMETHANE SUBSTITUTE.

Ethanol does not work well in model airplane engines. Second, it is extremely dangerous to use petrol in engines designed to run methanol/nitromethane/oil-based fuels. Nitromethane is much harder...
Forum: RC Fuels
05-21-2011, 04:04 AM
Replies: 140
Views: 13,762
Posted By Fuel Dinosaur

RE: Fuel mixing advice

http://www.geistware.com/rcmodeling/mixing_fuel.htm

It makes sense to mix your own fuel if you use about 15-20 gallons a year, or if you just like to mix up your own fuel. It is getting very...
Forum: RC Fuels
03-23-2011, 05:41 AM
Replies: 2
Views: 2,295
Posted By Fuel Dinosaur

RE: cool power synthetic oils, which grade to buy?

Suggest you buy the SIG formulations. They use generous amounts of Klotz Techniplate oils and AA grade castor. SIG does NOT skimp on oil and the Klotz oils they use have been around since the mid...
Forum: RC Fuels
08-04-2010, 08:00 PM
Replies: 42
Views: 11,766
Posted By Fuel Dinosaur

RE: Why castor oil?

Got a chemistry degree in my bag of degrees and have been mixing fuels since I was 12 for racing and plain old flying by the seat of the pants. Castor oil is a natural product of a pressing of the...
Forum: RC Fuels
06-24-2010, 03:16 PM
Replies: 26
Views: 24,893
Posted By Fuel Dinosaur

RE: Nitro fuel storage.

The following is an MSDS sheet (safety data sheet) for nitromethane:
"Stability and Reactivity

Stability:
Shock and heat sensitive. Thermally unstable. Reacts violently with a broad range...
Forum: RC Fuels
06-24-2010, 11:01 AM
Replies: 26
Views: 24,893
Posted By Fuel Dinosaur

RE: Nitro fuel storage.

You will have a hard time explaining that relative lack of flammability and burning near the top of the can to the fellow who loosened a rusty cap on a gallon can of fuel and got burns over much of...
Forum: RC Fuels
06-24-2010, 07:44 AM
Replies: 26
Views: 24,893
Posted By Fuel Dinosaur

RE: Nitro fuel storage.

Sport Pilot,

You are right about the unopened cans. My concern is that some inexperienced modelers might use an old handy gallon can. In those cans, the spark generated from just opening a...
Forum: RC Fuels
06-24-2010, 07:06 AM
Replies: 26
Views: 24,893
Posted By Fuel Dinosaur

RE: Nitro fuel storage.

I do not recommend storing model fuels in tin cans, UNLESS the cap is plastic. Old metal cans will rust, and present a very dangerous spark that can fire up your fuel. Modelers have been severely...
Forum: RC Fuels
06-06-2010, 03:12 PM
Replies: 21
Views: 2,574
Posted By Fuel Dinosaur

RE: nitro % help

Most (but not all) 2-stroke engines do well on 18% oil, and engine manufacturers recommend this minimum level of lubrication for a very good reason. In order to reduce costs and maximize profits,...
Forum: RC Fuels
06-05-2010, 04:37 PM
Replies: 21
Views: 2,574
Posted By Fuel Dinosaur

RE: nitro % help

Downunder gets it and might well agree that Americans in general use way more nitromethane than they need. I wonder if downunder uses a little acetone or other igniter in the winter there for a...
Forum: RC Fuels
06-02-2010, 07:07 AM
Replies: 21
Views: 2,574
Posted By Fuel Dinosaur

RE: nitro % help

15% nitro is fine for most 2-strokes, and I also use 15% in my Saito 4-strokes. Higher nitro will give you a little more power and good for competitive flying. That being said, most Americans use...
Forum: RC Fuels
11-08-2009, 08:29 AM
Replies: 4
Views: 1,254
Posted By Fuel Dinosaur

RE: fuel compatability

Please do NOT ever mix gasoline and glow fuel, it is highly dangerous to do so. Glow fuels are either synthetic and/or castor oils, with methanol and usually some nitromethane. Gasoline should be...
Forum: RC Fuels
09-30-2009, 10:34 AM
Replies: 26
Views: 24,893
Posted By Fuel Dinosaur

RE: Nitro fuel storage.

Please store your fuel in a cool place, in the dark, tightly capped. It is better if stored when the bottle is mostly full, this prevents excess moisture from going from the air in the bottle into...
Forum: RC Fuels
08-14-2009, 07:54 AM
Replies: 6
Views: 2,365
Posted By Fuel Dinosaur

RE: fuel mixing container ?

I recommend using metric graduated cylinders, even in the U.S. (among the SLOWEST to implement metric measurements!). For small to medium lots, you can use a 1,000 ml NALGENE graduated cylinder. It...
Forum: RC Fuels
05-30-2009, 11:02 AM
Replies: 3
Views: 953
Posted By Fuel Dinosaur

RE: Need a fuel Answer

Methanol evaporates easier and faster than nitromethane. The previous post is incorrect. Except for speed and a few other events, most people use much more nitromethane than their engines require in...
Forum: RC Fuels
02-03-2009, 12:38 PM
Replies: 5
Views: 2,146
Posted By Fuel Dinosaur

RE: Glow fuel

http://www.sigmfg.com/ Also PowerMaster

Both make decent fuels. I mix all my own and have since I was 12 years old, and still buy by the barrels, still getting nitro okay. SIG generally uses...
Forum: RC Fuels
02-01-2009, 08:56 AM
Replies: 9
Views: 2,275
Posted By Fuel Dinosaur

RE: sig champion 4 stroke fuel

I agree with the 10-12% range for oil for the large ST engines. You can use these engines with 8% Klotz Original Techniplate oil and add 2-4% AA castor or, slightly better, 2% Klotz Benol. The Benol...
Forum: RC Fuels
11-08-2008, 11:50 AM
Replies: 8
Views: 5,124
Posted By Fuel Dinosaur

RE: Klotz 198

The Klotz Helicopter oil is a low viscosity oil and is used at 22-24% in 15-30% nitromethane fuels for helicopters. You can use it, but I would use it at 22% and 10-15% nitromethane. An even better...
Showing results 1 to 25 of 141
 
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