I didn't and may not ask any more questions......
In the mean time:
Others seem to think that power loss at higher RPMs is caused by VE
reduction. They might be right depending on how VE is defined.
The same people (and lots of others) also think that power loss at higher
RPMs has nothing to do with the fact that the piston tries to outrun the
flamefront. It can't, of course, but the delta velocity causes less force
to be applied to the top of the piston as RPMs increase. Basic stuff........
Now back to the question at hand........considering all the factors that
you have accurately noted as constants or at least knowns for the purpose
of my question, I would like to (with my engine and it's factors, whatever
they are) be able to accurately predict the right amount spark advance to
apply at any operating RPM, by fuel type, to maximize power (force applied
to pistons). And then implement that advance curve. What's the problem with
wanting to do that?
Fuel companies that have said that they have the data and won't give it to
me......so where is it so I can get it???? I'm not making fuel for a
living....I don't even mess with it....much (-:
Skip (I don't care if the data is current at this point......just want data)
At 02:18 PM 3/1/02 -0500, Dave Dahlgren wrote:
>ok I am lost now, must be a units conversion thing...
>I give up how do you get from flame front speed to Ve???
>Is it squared or cubed by the plug heat range or divided by the 5'th root of
>the
>rod ratio???
>
>Dave
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