high turbo temp
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Junior User
Joined: Sep 2003
Posts: 77
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From: Quinton,VA
high turbo temp
So I'm driving home yesterday and noticed my Pyro at around 800° (it would climb up to 1000° going up small hills). I backed off and started watching the Guage all the way home. I was pulling an EMPTY 16ft dual axle trailer. All other guages were normal and no codes thrown. When I got home I dumped the trailer and drove around some more. The average temps dropped, but I could still easily get it to 800 and over. The ambient temp reached 82° yesterday and my Trans temp was 199° with the trailer and about 160° without. Any clues as to what it could be? I looked and found no leaks on the up-pipes.
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Junior User
Joined: Sep 2003
Posts: 77
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From: Quinton,VA
I do not have a chip yet, and the probe is before the turbo on the manifold. So ya'll are saying those temps are pretty normal? I just don't remember them ever being sustained that high.
Logistics Pro
Joined: Dec 2010
Posts: 4,738
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From: Temperance, MI
I agree with everyone here. Just to throw it out there, have you change your air filter lately?
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FTE Leadership Emeritus
Joined: May 2014
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From: Lake Hartwell, GA
I have read on numerous occasions that the 7.3 could run at 1200 degrees all day long if needed. When you start getting up to the 1250-1300 range is when it starts to be OK for only short bursts like going up a grade and towing heavy. After 1350 or so should be very short bursts if needed and changing driving styles or stopping to let it cool off.
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Elder User
Joined: Aug 2015
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Failure point is 1450. But keep in mind the reading you get at the pyro is after the fact so to speek. So there is a delay in the reading and the temp could be higher than that number. So I never go over 1350, as with the delay reading it could spike higher without me knowing. I also have ceramic coated pistons so don't worry as much. Your temps appear in line for the ambient temps outside, light towing etc.
Senior User
Joined: Jul 2014
Posts: 435
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From: Bloomfield, NM
That's normal for my truck even with the chip. At least on the 75 up tune with a similarly loaded trailer. I ease up on the skinny pedal at 1200. It's got plenty of power even below that to pull whatever I need.
Hotshot
Joined: Jan 2011
Posts: 18,849
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From: Puget Sound
All my research (and the redline on my ISSPRO EV2 EGT gauges) say 1250 degrees F is the line of death. I can't remember where I found the exact source, but I found a document that said 1250 degrees at about 2 minutes is the limit before things get permanent. My small understanding of metallurgy and better understanding of heat soak makes me feel this is a solid number. That's not to say 1250 degrees is bad and 1200 degrees all day long is good - variations in temperature sensors and placement can make the reading a little off from the actual temperature. I just try to avoid hanging out over 1100-1150 degrees F.