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PAW .60 mix

Old 10-11-2015, 04:52 AM
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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.)
Old 10-11-2015, 01:47 PM
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Originally Posted by FormerDairyFarmer
If you consider that the kerosene is the largest component in the fuel then the 2%, (of castor) lube factor is huge, requiring less lube not more.
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.
Old 10-11-2015, 02:04 PM
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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

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