I mix my fuel by volumeThere was a topic on this a while ago and one of my questions was, do they measure by weight or volume for the ingredients.
Hey Jack,I can only tell you about the Punch fuel we make. We use a little bit of this and a little bit of that, shake it up and I almost forgot the most important part, we check the smell if it smells ok we ship it.J.
Bob & Jack are correct it is really bad stuff - I just never got rid of it until we moved north and disposed of it correctly with some other bad stuff that I had acquired.Before anybody starts fooling around with nitrobenzene, please google it and read about it. It is very dangerous stuff.
Regarding fuel mixing, a chemist will almost always mix liquids by weight, but it has been tradition to mix model fuel by volume because it is easier to do and mixing by volume gives a higher nitro content than doing it by weight.
are you using prope Terry?If you have a postal scale that measures grams you can mix fuel very accurately by weighing the components.
Four liters (4000 ml) of fuel fills a US gallon can full with no air space to allow contamination, also phenolic lines cans prevent moisture from creeping in or your prope from leaching out.
For example the SG of nitro is 1.13 so for 60% fuel 4000 x .6 = 2400 ml x 1.13 ml/g = 2712g
Alcohol is .79 and most oils are close to 1.0.
Accuracy down to the 1 ml level.
I've also started adding 0.1% of amyl acetate to help keep the castor in solution, so far so good.
Yes, been running 3% for years. Helps starting, idle and transition, also very important at lower temps to burn the volume of fuel we throw at them!are you using prope Terry?If you have a postal scale that measures grams you can mix fuel very accurately by weighing the components.
Four liters (4000 ml) of fuel fills a US gallon can full with no air space to allow contamination, also phenolic lines cans prevent moisture from creeping in or your prope from leaching out.
For example the SG of nitro is 1.13 so for 60% fuel 4000 x .6 = 2400 ml x 1.13 ml/g = 2712g
Alcohol is .79 and most oils are close to 1.0.
Accuracy down to the 1 ml level.
I've also started adding 0.1% of amyl acetate to help keep the castor in solution, so far so good.
Always a good idea to check the rule book before commenting - seems to me the last time propylene oxide was mentioned someone claimed it was not allowed by the IMPBA rule book but on further review it is allowed.Before you start putting in additives, best check the rule book. Most have been outlawed and if caught banishment will result. That is not even considering the health risks which are not worth it.
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