Joined
·
4,099 Posts
OK - we know that the proper A/F ratio for a gasoline engine is 14.7 (or thereabouts) to 1. I'm curious how having to burn fuel with ethanol would affect that. The proper A/F ratio for ethanol is 9:1. Since our fuel typically has up to 10% ethanol, should the ideal A/F ratio be something more around 14.2:1? * In other words, if we're running our machines on a fuel that they weren't originally designed for (hence the 14.7:1 ratio), wouldn't it make sense that they should be run on a slightly richer mixture for best performance?
I know, my mind comes up with some strange questions but still, I find it interesting to think about such things.
* Pure gasoline - 14.7:1 and ethanol - 9:1
So, attempting to do the math, ((9 * 14.7) + 9)10 = 14.2 (or thereabouts).
I know, my mind comes up with some strange questions but still, I find it interesting to think about such things.
* Pure gasoline - 14.7:1 and ethanol - 9:1
So, attempting to do the math, ((9 * 14.7) + 9)10 = 14.2 (or thereabouts).