EGT Tempature
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Junior User
Joined: Dec 2008
Posts: 87
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From: Pittsburgh,Pa
EGT Tempature
I have a 2002 7.3 P.S. with a Gryphon Pegasus Progammer.It set it on stage one when I tow my 44FT Box Trailer,with my race car.I don't know the weight of the Goosneck Trailer,the EGT has went as high as 1400 degree.Is that too high?That is climing a hill from a dead stop.When i'm not racing i run the truck in stage 2,it doesn't go over 1200 degree.
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
Where is your pyro probe? It should be before the turbo, either in the manifold or up-pipe. If it's in the downpipe after the turbo, relocate it.
Pre-turbo EGT's should not sustain past 1250 degrees. You can go above that in short bursts of a few seconds, but that's it. Sustaining temps of 1250 and higher for longer periods will result in engine damage.
Pre-turbo EGT's should not sustain past 1250 degrees. You can go above that in short bursts of a few seconds, but that's it. Sustaining temps of 1250 and higher for longer periods will result in engine damage.
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Junior User
Joined: Dec 2008
Posts: 87
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From: Pittsburgh,Pa
EGT
In my race i have 2 EGT Guage Sensors on it,the front Sensors reads a lower temp,do you guys put yours in the front port?Also how close do you put the sensor in to the cylinder head?I'm used to gas and alcohal motors.
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
For a tow setting (and pulling a trailer), your EGT's were too high. Unless you were lugging the engine at low RPM's, you need to check for problems. Boost and/or exhaust leaks is where I would start first.
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Junior User
Joined: Dec 2008
Posts: 87
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From: Pittsburgh,Pa
EGT
I guess I did not say that right,about were to put the sensor,I ment when you put it in the ex. manifold,adout how far away from the head should you drill the hole for the sensor?SORRY.I will check for any other problems.
Elder User
Joined: Jul 2005
Posts: 659
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From: Berthoud, CO
I will only allow my truck to reach 1250, never more. For sustained pulling, like long hills, etc, 1200 is about all I'll ever do. Dont want to melt something.....
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Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
My first pyro gauge had the probe in the up-pipe a few inches from the exhaust manifold. My current gauge has a probe in the manifold just before it bolts to the up-pipe. No difference between temp readings between the two.
So take your pick. When you crawl underneath the truck, look up on the driver's side manifold and up-pipe. Depending on how you decide to mount the probe, look for the easiest spot to drill. That's the place to put it.
This isn't my truck, but it's where my probe is currently placed:
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Thread Starter
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Junior User
Joined: Dec 2008
Posts: 87
Likes: 0
From: Pittsburgh,Pa
EGT
Mine is right above the last port on the drivers side in the ex. manifold,before the downpipe.The EGT temp gets cooler on headers as it gets farther away from the head,i wonder if that is possible on a turbo diesel.It is tempting to plug that hole and move the sensor down to the down pipe which is farther away from the head.HOPING FOR NOT HAVING A MONEY COSTING PROBLEM!
Post Fiend
Joined: Mar 2007
Posts: 26,966
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From: Texas
Just some clarification for you Jerry. If you look at the picture posted by Pocket, you will see his probe installed in the exhaust manifold just behind #8 and just before it connects to the pipe going up to the turbo. The pipe between the exhaust manifold and back of the turbo is the up-pipe. The exhaust pipe coming off the other end of the turbo that goes down and connects to the exhaust pipe is your down pipe.
Your pyro probe needs to be either in the tail end of your exhaust manifold or in the up pipe before the turbo. As long as you have it there, and the tip of the probe is somewhere near the center of the opening in the manifold or pipe, you're in good shape. A pyro probe in the down pipe is useless.
Your pyro probe needs to be either in the tail end of your exhaust manifold or in the up pipe before the turbo. As long as you have it there, and the tip of the probe is somewhere near the center of the opening in the manifold or pipe, you're in good shape. A pyro probe in the down pipe is useless.
