[Diy_efi] exhaust gas temps

[Ohio Benz]

Subject: Re: [Diy_efi] Combustion temperature for max
power
From: Eric Byrd <klox at juno.com>
Reply-To: diy_efi at diy-efi.org

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.


So... how hot could I expect the exhaust gasses from a
turbocharged engine to be???  Reason I as is because I
need to make a custom wastegate for our VW project and
the temp range is a big factor in material selection.
Thanks

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