EGT temps for daily driving? What's dangerous? - Ford Powerstroke Diesel Forum
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Old 12-10-2009, 06:37 AM
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EGT temps for daily driving? What's dangerous?

What are you averaging on your EGT when driving and what's the highest it usually reaches daily driving for you. I'm just trying to do some comparison with what mine reads.

This morning mine reached slightly above 800 in freezing temps after getting on it hard and flucuates from 400-800 depending on how much i'm on the gas.

What temps are considered dangerous and should not be reached? I don't have a red zone on my gauge. I need to look to see about some parts and things to do to lower my EGTs more. If you have any ideas please let me know.
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Old 12-10-2009, 07:02 AM
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Many times, I've read that Navistar engineers say 1250 is the max you want to go for extended periods of time. Anything over that should be in SHORT bursts only. This information applies if your thermo couple is PRE turbo.
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Old 12-10-2009, 07:47 AM
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The probe is pre turbo on the drivers side exhaust manifold.
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Old 12-10-2009, 08:47 AM
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Quote:
Originally Posted by wsigo View Post
Many times, I've read that Navistar engineers say 1250 is the max you want to go for extended periods of time. Anything over that should be in SHORT bursts only. This information applies if your thermo couple is PRE turbo.
These trucks can handle staying on redline and hitting 1300* all day long and it will never be able to tell. You can hit 1500* for short bursts with no ill effects.
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Old 12-10-2009, 08:57 AM
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Where are you guys running your egt probes? I have always run mine after the turbo and allowed for a little hotter temps than the guage is reading. Im just affraid of something running through my turbo.
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Old 12-10-2009, 10:43 AM
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I run my probe pre turbo on at the end of the exhaust manifold around there.
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Old 12-10-2009, 10:47 AM
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Pre turbo is the only place for the EGT probe!!! Don't worry about your turbo and move the EGT probe to the correct location.
Back to the OP your temps seem right on. I use 1250 as a redline, but as already said it takes over 2 min to heat soak a piston so short burst above that is fine.

NCH
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Old 12-10-2009, 11:01 AM
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Good to know, thanks.
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Old 12-10-2009, 11:05 AM
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For post turbo operation, which shouldn't be done like said, the temps can differ by up to about 600 from a pre turbo probe.
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Old 12-12-2009, 02:23 PM
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I hit 1200 for a second when I installed a second smaller stiffer spring tightened down and hit 28psi then let off.
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