[Diy_efi] Combustion temperature for max power

[Eric Byrd]

It seems to me, not knowing much about the specifics of this topic, that
having extremely hot exhaust gases is a symptom of inefficiency in your
cycle.  Heat = energy lost.

Plus, I have heard there is a relationship between fuel mix and EGT,
reliable enough that you can use it to diagnose fuel problems.  I have
heard the optimum EGT is 1500 F, and that 1800 F is hot enough in the
exhaust to denote cylinder temperatures hot enough to melt aluminum
pistons.

On Thu, 12 Dec 2002 11:26:56 +1300 "Bevan Weiss" <kaizen__ at hotmail.com>
writes:
> It's not a high output temperature that you want, it's a very large 
> change
> in temperature from input to output.  You want the coldest input gas 
> (or not
> gas if you can get it in there) that you can get and the largest 
> change in
> output gas temperature, this does inevitably mean that you want the 
> highest
> temperature possible, although not at a likewise increase in input
> temperature.  If you have a limited EGT then perhaps you should look 
> more
> into actually cooling the intake charge for more performance.
> 
> Remember that power isn't the amount of pressure in the cylinder, 
> but rather
> the change in pressure within the cylinder.
> 
> 
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