what is max safe egt?
Elder User
Joined: Jul 2004
Posts: 938
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From: North Carolina
Originally Posted by BBBxcursion
1250, yeah right! Have you ever seen a truck blow something @ 1250?? I have sustained 1400 for maybe 30 seconds and have peeked at 1500. Truck has over 120,000 miles and still runs great. I have had many talks with big name diesel performance shops and they laugh at the usual 1300 safe point. They have never had problems with 1300, and never seen it. I ask this, have you really seen a powerstoke 'blow it's heads' going over 1250??? I and many others must have lucky heads then 
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From: South Texas Coast
Originally Posted by NightBiker
Sweet! I'll do that. I like the idea of an A-post guage rack.
and now that I'm typing this, I see an ad for ISSPRO guages flashing up in the banner.
Much abliged. Hope its not too difficult to route and hook up this stuff. I'm wondering (before actually going there) if they have whole kits for each guage (the sensor, mount, etc etc) or do I have to buy each individual part (the pyro sensor, the air-flow meter sensor, etc -and for that matter, where do I learn about these things?)
Thanks!
and now that I'm typing this, I see an ad for ISSPRO guages flashing up in the banner.
Much abliged. Hope its not too difficult to route and hook up this stuff. I'm wondering (before actually going there) if they have whole kits for each guage (the sensor, mount, etc etc) or do I have to buy each individual part (the pyro sensor, the air-flow meter sensor, etc -and for that matter, where do I learn about these things?)
Thanks!
Good luck and dont be afraid to ask cause most of these guys love to help.
Senior User
Joined: Apr 2004
Posts: 132
Likes: 0
Originally Posted by FORD352V8
This is interesting, however you dont have very many miles on your truck. You could be delvoloping pinholes in your pistion from the heat, or maybe burning them excessivly which could lead too hole(s) in your pistion, no? Is there any conclusive evidnece that its okay to peak the EGT's at 1400 degrees? We will see if your singing the same song when your engine is at 300,000 if it gets there. All Im saying is, do you think its wise to reccomend these temps when its not proven that its okay?
Postmaster
Joined: Jan 2004
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From: colorado
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Elder User
Joined: Jul 2004
Posts: 938
Likes: 1
From: North Carolina
Originally Posted by BBBxcursion
It has not yet been proven that it's not ok is my point. I too was concerned about this, don't get me wrong. But I also contacted many diesel performance shops asking about this. They don't understand why people on the internet say 1300. They have never had problems with 1500. 1300 is more than safe, but you're not going to hurt anything if you go higher once and awhile. I brought this up because I don't want this person feeling horrible one day if they go past 1300 on accident. Can you prove that 1400 is not ok?? At what egt will the engine melt down...or 'blow a head'
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Senior User
Joined: Dec 2003
Posts: 172
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Originally Posted by NightBiker
thanks. Pre it shall be!
lookin' forward to adding a tripple-guage column to the post
lookin' forward to adding a tripple-guage column to the post
I bought a 3 guage pillar mount already painted, with the guages (pyro, tranny, boost) already mounted in the pillar and wired up. The kit included everything I needed, plus some spare parts.
The hardest part of the whole install for me was to remove the original pillar and get the other one snapped in w/out losing my patience and accidentally breaking something or pinching a wire.
After that, everything went smooth as could be. I was pleased that everything was correct in the instructions - wires were where they were supposed to be, same color, etc. Even drilling for the pyro probe was easy - WAY easier than I had thought. (that was the main reason for me delaying getting the guages for so long).
The whole thing took less than 2 hrs with minimal hand tools and a cordless drill.
Of course I can't remember where I ordered the kit from now...
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Senior User
Joined: Dec 2003
Posts: 172
Likes: 0
Originally Posted by wlihntr
the whole boost vs. EGT vs speed is kind of a "dance on the fence". you can pulling a hill with a load, be in 4th gear, have your foot way in the throttle, pulling 17 psi at 2000 rpm and have an EGT of 1200*. then you drop it into 3rd the boost goes to 24psi the speed stays the same, rpms go to 2800 and the EGT drops to 1050*...what??? when you get to the limit of things sometimes more boost and higher rpms will lower the EGT because with the increased boost, more air is moving through the engine and taking the hot exhaust out faster...trust me, i do it all the time 
What to do? Which is worse on the truck? The boost seems to be the lesser evil, but it also seems to get worse mpg's that way.
I am thinking maybe I should just put it back to stock setting.
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Senior User
Joined: Dec 2003
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Originally Posted by NightBiker
not sure I'd agree about the boost being the lesser evil. Neither is good, but the boost will certainly increase your chances at blowing a head.
It is fun to play with the performance, but the bottom line is that my truck is an everyday work truck that I depend on to make a living and it is not worth ruining it for kicks.
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Joined: Feb 2004
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From: Elverson, PA
Originally Posted by NightBiker
not sure I'd agree about the boost being the lesser evil. Neither is good, but the boost will certainly increase your chances at blowing a head.
Uhhhh - you don't have to worry about that with a stock turbo!!
A PSD will handle around 40psi before you have to think about studs and/or firerings. It's the factory turbo that you are saving by keeping the boost below 25psi - nothing else.