[Diy_efi] exhaust gas temps

[Eric Byrd]

Actually, I read this from a site called, I think, homemadeturbo.com, a
site this fella developed to help new guys trying to turbocharge their
motors, and teach them what they need to know to avoid blowing up a
motor.  Even under boost, you can run a rich enough mix to keep EGT down
to 1500.  I would guess if you went much richer, there would be a danger
of fouling plugs.  I've also heard that AF gauges bounce around too much
to be of any use in precise tuning, but since EGT occurs after the fact,
it will give you a better "average" reading.  Oh, and, please forgive me
oh-so-humbly if any of this "advice" is not purely, perfectly, factually
correct.  Some of the guys on this forum think what they find here is
always utterly reliable, and they take great offense when they discover
errors, even errors that could have a perfectly natural explanation, not
realizing that they give this place a bad smell when they respond with
hostility.

On Fri, 13 Dec 2002 15:36:20 -0800 (PST) Ohio Benz <ohiobenz at yahoo.com>
writes:
> 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
> 
> __________________________________________________
> Do you Yahoo!?
> Yahoo! Mail Plus - Powerful. Affordable. Sign up now.
> http://mailplus.yahoo.com
> 
> _______________________________________________
> Diy_efi mailing list
> Diy_efi at diy-efi.org
> http://www.diy-efi.org/mailman/listinfo/diy_efi
> 


________________________________________________________________
Sign Up for Juno Platinum Internet Access Today
Only $9.95 per month!
Visit www.juno.com

_______________________________________________
Diy_efi mailing list
Diy_efi at diy-efi.org
http://www.diy-efi.org/mailman/listinfo/diy_efi