Why is it so?
I have read and believed in the power of model diesels but what bothers me is that both methanol and kerosene has an energy rating of 48 foot/pound per inch and further the fuel/air ratio of diesel is 15:1 whereas glow fuel is 7:1.
The leaner and drier mix in diesel means that you will need to factor in more oil to get the same percentage of lubrication for the engine for any given period of time - kero only has about the equivalence of a 2% castor oil/methanol mix for lubricity so will not make up that much of the difference.
And any added ether, it could be up to 33% of the total fuels volume, further reduces the total power available due to its even lower calorific value.
So for any given rpm a glow engine is using burning twice the amount of fuel so should be a heck of a lot more powerful ............. and yet it is not always the case.
What am Imissing here since any engines power is given as how much fuel it can burn in a set period of time and a glow wins that race hands down.
I have taken the rose coloured glasses off for this one!