dkwflight

Hi Don't forget the function of nitromethane in an engine.
Adds oxygen to the mix.
That is what makes it hard to compare diesels to nitro engines.
To the really curios. Make up some alcohol only +lube mix to run a glow engine. (Requires a higher compression ratio.)

Chris W

Hi Dave,
regardless of being the largest component it will still only give a 2% value.

So as a mental exercise here, if we take this to the extreme and say we some how manage to use a fuel that has its largest component of 100% kerosene it still only ever equals a 2% castor lubricity value, and in actual fact the more a % of base fuel used used the less of a % the castor (and ether) gets.

Please accept that I am not running down model diesels, in fact I think that they are wonderful!
I am only trying to understand them better and some of the claims that i have read for them simply don't make any sense to me.

Thanks.

dkwflight

Hi
Much of the sayings about diesels is from the old days. This engine is a very old long stroke engine.
Needless to say much has changed since then. Look at the prop this engine is spinning.
https://www.youtube.com/watch?v=3p__kUa1SKE

This is an 3.2cc Indian engine spinning a 9x4 Indian prop
https://www.youtube.com/watch?v=9JsP...ature=youtu.be