RE: Home-brewing fuel  
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RE: Home-brewing fuel - 1/27/2005 6:00:43 PM   
DesertHucker



Posts: 280
Joined: 9/23/2004
From: BoulderWest Australia, AUSTRALIA
Status: offline 		Try using Home Brew Buddy it will calculate the mix to your own specs and temprature variation. and is simple to use on scales place your container and zero the scales then add oil and zero add nitro and zero add methanol and zero or it will give the quantaties to mix by volume metric or imperial. 1.2mb in size contact me for a copy. i will try to find the web link and post it.

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Lawrie Goldfields Aeromodellers
www.gam.asn.au

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       Post #: 176

RE: Home-brewing fuel - 1/27/2005 6:13:40 PM   
DesertHucker



Posts: 280
Joined: 9/23/2004
From: BoulderWest Australia, AUSTRALIA
Status: offline 		download the gif file then change the file extention to exe so hbbuddy.gif = hbbuddy.exe

Attachments
Click to see fullsize image.
Click for fullsize


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Lawrie Goldfields Aeromodellers
www.gam.asn.au

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       Post #: 177

RE: Home-brewing fuel - 1/27/2005 6:17:17 PM   
wldcwbypilot


 

Posts: 467
Joined: 9/29/2003
From: Corpus Christi, TX, USA
Status: offline 		Check your calculator it would 0.0000025. that is twenty five part per million. Mighty miniscue if you ask me.

will

(in reply to russellk)
       Post #: 178

RE: Home-brewing fuel - 1/28/2005 5:01:19 AM   
speedster 1919



Posts: 1463
Joined: 12/17/2004
From: Martinsville, IN, USA
Status: offline 		I live close to Indianapolis In. racing capital of the world. Finding the ingrediants here are easy if you can buy large amounts. Like 4 drums of nitro at a time. Mixing my own fuel is just plain fun. If you fly alot it is worth it. Dragsters use 11 gallons of fuel in 1/4 mile ,that is 44 gallons to a mile. Engines have to be rebuilt every 1/4 mile. The simple fact is nitro kills engines and eats internal metal. The less you use the longer your engine will last. Nitro is expensive and should't make up for and under powered plane. Get a bigger motor. If you gather all the recommended engine manufactures fuel list it would bring you to conclude this. 20% oil of a blend like 20 /80 and 5 to 10% nitro. I still am not convinced 100% synthetic is good , so humor your engine and warranty with alittle castor oil..

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       Post #: 179

RE: Home-brewing fuel - 3/4/2005 3:16:11 AM   
blw



Posts: 4422
Joined: 3/15/2004
From: Auburn, AL, USA
Status: offline 		speedster,

It isn't exactly the nitro that kills top fuel engines. It could also be that they are putting out 7000+ hp to the wheels for 7 seconds flat out!

Some manufacturers recommend 15%, so that's what I'm using. I have seen enough engines that run on 15% and last something like 10 or 15 years.

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       Post #: 180

RE: Home-brewing fuel - 3/4/2005 3:35:13 AM   
Sport_Pilot



Posts: 7405
Joined: 1/21/2002
From: Acworth, GA, USA
Status: offline 		Model speed engines use 70% nitro without blowing up like a AA dragster, but then they are not blown, and do not have an ignition system that will ignite super rich mixtures. They seem to last well and the nitro doesn't seem to eat them up at least not to the degree that speedster would imply.

(in reply to blw)
       Post #: 181

RE: Home-brewing fuel - 3/7/2005 4:32:32 AM   
Eagle Flyer


 

Posts: 598
Joined: 12/28/2001
From: Ida Grove, IA, USA
Status: offline 		I just did the math with current local prices.
Methanol, 1.7 cents an ounce
Nitro 35 cents an ounce
Klotz lube 30 cents an ounce
So 15% nitro with 18% lube will cost me $15.09 to make.
I can buy it tax included for $13.76

I did get a gallon of 15% nitro 18% lube to mix with 2 more gallons of methanol to make 5% nitro and 6% lube for my ST 3000 with a needle bearing converted rod, both ends. Comes out to $6.05 a gallon. It would cost me $6.50 to make.
Guess I'm a buyer and not a brewer.

(in reply to Sport_Pilot)
       Post #: 182

RE: Home-brewing fuel - 3/7/2005 6:23:59 AM   
3d-aholic



Posts: 1990
Joined: 10/7/2003
From: Austin, TX, USA
Status: offline 		You don't make your own fuel because its that much cheaper. I can buy 20/20 for about $20 a gallon. I can make it for about $13.00 a gallon. A small savings but the savings would not be sufficient to convince me to make fuel. Its convenience. I need a gallon of fuel to fly this weekend, I go into my garage and make up a gallon in about 10 minutes. The nearest LHS is 35-45 mins and may not even have the fuel when I get there.

Also, I cannot buy any fuel for $13.76 tax included...not even 5% Nitro. If your have 2 LHS's with 15mins, I would say buy.

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       Post #: 183

RE: Home-brewing fuel - 4/26/2005 1:26:40 AM   
jfitter



Posts: 32
Joined: 10/22/2002
From: Mapleton, Queensland, AUSTRALIA
Status: offline 		Here is the Home Brew Buddy link. ftp://ftp.eagleairaust.com.au/HBBuddy.exe This is a self extracting archive.

Enjoy

(in reply to blw)
       Post #: 184

RE: Home-brewing fuel - 4/29/2005 2:07:45 AM   
RossW.au


 

Posts: 31
Joined: 4/27/2005
From: Toowoomba, AUSTRALIA
Status: offline 		The Home Brew buddy is a great free program. http://www.taa.org.au/html/home_brew.html TAA have a screen shot. Just don't tell the wife what your doing with the kitchen scales. If you don't have a set of digital scales it would make an ideal mothers day gift! HeHe

(in reply to jfitter)
       Post #: 185

RE: Home-brewing fuel - 4/30/2005 4:06:18 PM   
John@FLYRC



Posts: 65
Joined: 5/8/2003
From: Bethel, CT, USA
Status: offline 		I read a lot (certainly not all) of this thread. I make my own fuel. I am interested in the low nitro mixes and will give then a try

RE: Where to buy Nitro. I have used Price Chemical (www.pricechemical.com). Their prices are reasonable but the Hazmat surcharge is expensive. I try to get nitro from the local auto speed shops when I can. Price offers decent volume discounts.

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John Lee

(in reply to RossW.au)
       Post #: 186

RE: Home-brewing fuel - 4/30/2005 4:31:22 PM   
RC-Captain



Posts: 2955
Joined: 11/12/2002
From: RCHill, NJ, USA
Status: offline 		You are simply the man ! nice program.

I'm gonna have ME some fun.......

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I finally broke bread and bought a real charger , THE TRITON 2............

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       Post #: 187

RE: Home-brewing fuel - 5/9/2005 1:02:16 AM   
RossW.au


 

Posts: 31
Joined: 4/27/2005
From: Toowoomba, AUSTRALIA
Status: offline 		Home brew buddy was written by John Fitter from Eagle Air Australia. It has enabled me to mix with high precision exact amounts of oil and nitro so that from one batch to the next my engines do not require retuning. In short it has enabled me to have exactly repeatable results every time, just what is required for pattern.

(in reply to RC-Captain)
       Post #: 188

RE: Home-brewing fuel - 5/9/2005 1:14:01 AM   
RC-Captain



Posts: 2955
Joined: 11/12/2002
From: RCHill, NJ, USA
Status: offline 		Nice to know, and thanks again. So far All I have is a 4 oz bottle of CASTOR OIL, I'm on the hunt for the methanol next. I figure with these two ingredients I can start experimenting.

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I finally broke bread and bought a real charger , THE TRITON 2............

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       Post #: 189

RE: Home-brewing fuel - 6/2/2005 10:57:24 PM   
davidsai


 

Posts: 179
Joined: 9/21/2003
From: san andres islandsan andres, COLOMBIA
Status: offline 		Is there a replacement for nitromethane?

Cant get any here in Colombia.

regards
david
www.cybul.com/rcguide.html

(in reply to Capgains)
       Post #: 190

RE: Home-brewing fuel - 6/17/2005 2:58:21 PM   
MassiveMods



Posts: 1560
Joined: 11/23/2003
From: SydneyNSW, AUSTRALIA
Status: offline 		whats the adavantage of mixing fuel by weight as opposed to by volume ?

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www.massivemods.com Specialising in Engine Mods, Superior Quality Racing Fuels, Australian Go Engine distributor/developer.

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       Post #: 191

RE: Home-brewing fuel - 6/17/2005 3:21:02 PM   
DesertHucker



Posts: 280
Joined: 9/23/2004
From: BoulderWest Australia, AUSTRALIA
Status: offline 		Fuel like other solids or liquids expands and contracts at different rates with temperature changes. Using a program like home brew buddy compensates for this.
and it is easier to mix on scales use your favorite container on the scale hit tare add oil hit tare add nitro hit tare add meth and shake less tha 5 minutes 1 gallon mixed.

_____________________________

Lawrie Goldfields Aeromodellers
www.gam.asn.au

(in reply to MassiveMods)