RE: Home-brewing fuel (Full Version)

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AndyW -> RE: Home-brewing fuel (8/30/2005 4:00:25 PM)

Has anyone tried Coolpower oil for diesel fuel??



johnfly -> RE: Home-brewing fuel (9/13/2005 4:56:48 AM)

has anyone heard of "upper lube" it's apparently an additive for the big v8 motors.... my question is will it be harmfull or mess up the mix for rc application???????? a local guy will sell me the alky pretty resonable but he has the company he gets it from add this upper lube. any comments....... thanks.



panzerd18 -> RE: Home-brewing fuel (10/18/2005 2:14:24 PM)

Very interesting thread.

Thanks for all the people who sent me a reply to my questions.

However I'm buying pre-mix at $6.40 a litre. I worked out with some prices that I will be saving around $3 every 5 litres which is not much.



downunder -> RE: Home-brewing fuel (10/18/2005 5:56:01 PM)

quote:

ORIGINAL: johnfly
has anyone heard of "upper lube"

Upper cylinder lubricant is usually added as a small bottle to a full tank of petrol so the amount involved would be far less than 1% and whatever they're using obviously mixes with methanol so I can't imagine it causing any harm. At the very worst there's the tiniest chance it won't be compatible with whatever oil you use.



speedster 1919 -> RE: Home-brewing fuel (10/27/2005 3:45:44 PM)

Julian $85 for 3 gallons of nitro is a great price ,so is the methanol price.



speedster 1919 -> RE: Home-brewing fuel (10/27/2005 3:56:48 PM)

Cool power gold is 30% castor 70% syn just like omega . Small RC engines use heavy green coolpower and will be replaced with green MV That is because of high rpm ,heat,no or little oil control on pistons. I,m not sure if gold is made in heavy so use med. to be safe.



ironhorsefly -> RE: Home-brewing fuel (11/26/2005 9:54:53 PM)

[8D]
Tell me if you know what the fuel ratios where back in the day when Cox was making fuel for both there Regular engines
and their Glow engines.
Is there anyone else currently making the fuels with the same mixtures or will I have to make my own blend?
I am thinking somewhere around
29% Castor Oil
5% Nitromethane
66% Methanol

are these close or is there someother combination or other additives that no one else is using to produce todays fuels.

Would like the feedback

Thank You
Ironhorse



Woody 51 -> RE: Home-brewing fuel (11/26/2005 10:08:43 PM)

What size engine are you looking at running? 29% Castor is an awful lot.

Cox used to have 2 blends for their glow engines. On was sold in a blue can (Standard) and the other in an orange can (Racing)
The "racing" blend had about 25 % Nitro and their engines really screamed on it. I cannot remember what Nitro content the Stadard" mix had. 10 % rings a bell though.




Sport_Pilot -> RE: Home-brewing fuel (11/29/2005 4:20:02 PM)


quote:

ORIGINAL: ironhorsefly

[8D]
Tell me if you know what the fuel ratios where back in the day when Cox was making fuel for both there Regular engines
and their Glow engines.
Is there anyone else currently making the fuels with the same mixtures or will I have to make my own blend?
I am thinking somewhere around
29% Castor Oil
5% Nitromethane
66% Methanol

are these close or is there someother combination or other additives that no one else is using to produce todays fuels.

Would like the feedback

Thank You
Ironhorse



That's the old Dukes Fuel used by the Fox .35 Stunt. The extra oil helps keep that engine cool and improves its 4-2-4 break from four cycle to two cycle and back. Cox probably needs 20% to 22% all castor 15% nitro and the rest methanol. I think the Cox racing fuel was 25% nitro instead of 15%. Also had a small amout of acetone added as I recall. The racing fuel would eventually eat up the styro wings on the foam winged models.



helicopters -> RE: Home-brewing fuel (1/12/2006 3:24:50 PM)

i can get a box of 4 3gallon 25% mix for $30.



speedster 1919 -> RE: Home-brewing fuel (1/22/2006 12:51:09 PM)

I 've used methanol with upper lube and it worked just fine . Not sure what % upper lube was in it (sunoco) I think it was 1-2% I backed off my oil 1%



jamesg25 -> RE: Home-brewing fuel (2/2/2006 2:11:21 PM)

hello all
I have become interested in the idea of mixing my own fuel after i spent a weekend were i a whole gallon of fuel... at $22sgd(14US)/gallon and 4 gallons/month=88bucks i cant afford that on my allowance.
so i want to make my own fuel.

But here in Singapore for just mentioning the word chemical you'll probably get arrested and fined and jailed and gassed etc(not really, but you cant get chemicals)eg. nitromethane or oils of soughts.

but what i can get is methanol and 2stroke oil.... so my question is would it be possible to run a 2stroke glow engine on 2stroke motorcycle oil and methanol?

thanks regards
James



Fuelman -> RE: Home-brewing fuel (2/2/2006 7:01:34 PM)

If you want straight fuel without nitromethane, then you could look for or ask for some castor oil at the motorcycle shops. Then if you can get methanol you are all set.



Richard D Bahmann aka/Wrongway -> RE: Home-brewing fuel (2/3/2006 1:07:54 PM)

Make sure that the 2 stroke oil is compatable for pure methanol use. For example Klotz makes a full synthetic KL-200, a synthetic/castor blend KL-100 thes are for use with methanol and nitromethane type fuels. They also have a blend designed specifically for gasoline model engines KL-300 which is not recommended for pure methanol/nitro applications.

http://www.klotzlube.com/storeCats.asp?ci=8

Also what size engine are you making the fuel for? The larger glow engines like the Moki 1.8 and 2.1 will run great on no nitro but smaller glow may not run as well.



Richard D Bahmann aka/Wrongway -> RE: Home-brewing fuel (2/3/2006 1:23:27 PM)

Good info here

http://www.cooperfuels.com/airfuel_2.htm



jamesg25 -> RE: Home-brewing fuel (2/4/2006 3:29:23 AM)

I am planning to mix the fuel for a ST G90
Ive found a source of Castor oil but at 11.25USD/quart i Know I'm getting ripped off[&o]
will keep looking for a source of methanol and Castor
thanks for your help regards
James



tribute -> RE: Home-brewing fuel (2/8/2006 10:45:17 AM)

FUEL is alcohol and methanol the same thing can i use alcohol and LHS castor just to try it thanks



downunder -> RE: Home-brewing fuel (2/8/2006 2:19:07 PM)

There's two types of alcohol...ethyl alcohol (which you drink) and methyl alcohol (methanol, and don't ever try drinking that!). Some people have reported having some success with ethyl alcohol so there's no harm in at least trying it. It's possible you might need to keep power on the plug. But unless you're making moonshine :), methanol would be cheaper.



jlkonn -> RE: Home-brewing fuel (2/8/2006 2:24:07 PM)

Also isopropyl...rubbing alcohol.
There are many, many more known in the chemical/refining industry but never run across by the average public.
ALL are toxic...including ethyl..."drinking" alcohol!
JLK



Sport_Pilot -> RE: Home-brewing fuel (2/8/2006 8:40:34 PM)

AntiFreeze, in all its versions is also and alcohol. Acetone is also and alcohol. Infact any hydrocarbon with an attached oxygen molecule is and alcohol.



tribute -> RE: Home-brewing fuel (2/8/2006 9:16:43 PM)

thanks for the help i went to a race car shop and for methanol he gave me alcohol is it the same thing HELP thanks



downunder -> RE: Home-brewing fuel (2/9/2006 3:55:46 AM)

If it's from a race car shop then it'll be methanol....I haven't heard of any drag racers running on rubbing alcohol :D



tribute -> RE: Home-brewing fuel (2/9/2006 10:50:42 AM)

thanks for the info. i have a moki 1.80 what % of oil to a gallon can i use castor from the LHS just to try it out thanks



downunder -> RE: Home-brewing fuel (2/9/2006 12:09:13 PM)

If it was my engine I'd use 20% castor. This may be more than it needs but be safe rather than sorry. Also, 20% is the easiest possible to mix. Use 4 parts methanol and 1 part oil, shaken not stirred :)



Richard D Bahmann aka/Wrongway -> RE: Home-brewing fuel (2/9/2006 2:59:16 PM)

Look at the link in post #240. Moki's do need castor oil. I have run mine at 18% total oil, (10% Klotz Synthetic, 8% castor). The castor is messy to clean up if your exhaust hits the wing/tail etc. EDIT[20%] castor in methanol is what FAI fuel is made of.
I run my Moki 1.8 in an Aeroworks 300X (80 inch profile) that weighs 13 lbs with fuel. On an 18X6 Zinger it runs 8600 rpm and puts out 17 lbs thrust with a digital fish scale. By the way this is with 5% nitro in the fuel. I ran it with 0% nitro and did not like the idle and transition as much and rpm's suffered slightly. I found the high speed mixture setting to be very sensitive on 0% nitro on this engine.



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