Max Continuous EGT??
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Max Continuous EGT??
Does anyone know the maximum continuous EGT the '04 6.0 L PSD can handle? Banks claims 1300 all day long won't hurt them; 1350 for a few minutes is OK; and 1400 for a couple of seconds should not cause damage. OTOH, the SC 1704 tuner has a large orange note inside the box that says, "Do not allow EGT to exceed 1200 F.", or words to that effect.
Who's right? What is the maximum safe continuous EGT? Safe for 5 min? 1 min?
Who's right? What is the maximum safe continuous EGT? Safe for 5 min? 1 min?
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Originally Posted by Tim Lamkin
IMO 1250/1275......that is what I think...hehe
Tim, I know you pull a pretty big trailer. What's the max sustained (>10 min) EGT you've ever experienced with it?
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From: 3rd Rock
I have run 1200/1250 for long periods of time. Way over ten minutes
I do not go over 1250, it is all in right foot.
You can maintain any EGT you want when pulling.
Lizard Head pass is 11.9K and is about 20 miles of long pull.
To do it without pulling....hum... do not know how you could sustain those kind of EGT without running out of pavement.
I do not go over 1250, it is all in right foot.
You can maintain any EGT you want when pulling.
Lizard Head pass is 11.9K and is about 20 miles of long pull.
To do it without pulling....hum... do not know how you could sustain those kind of EGT without running out of pavement.
Post Fiend
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I'm like you rstephenw !!!
In the real world would anybody be ABLE to keep it that high for very long ????
Maybe going over a LONG pass with MUCH too much weight hanging off the back...
Maybe in the LONG 100 mile legal road races in far west texas at 100+ mph ???
I'm thinking you run out of road and effort before you can FORCE it that high for too long...
In the real world would anybody be ABLE to keep it that high for very long ????
Maybe going over a LONG pass with MUCH too much weight hanging off the back...
Maybe in the LONG 100 mile legal road races in far west texas at 100+ mph ???
I'm thinking you run out of road and effort before you can FORCE it that high for too long...
Cargo Master
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From: Carlsbad, California
My pyro probe is pre-turbo.
With the factory tune and pulling a 10 klb trailer up some pretty good grades in the So. Cal mountains, the highest EGT that I saw was right around 1200 or 1230 I think, I'd have to search my earlier posts. This was in 100 deg F. heat and with some 8% or better grades thrown in. Those were peaks, numbers in the 1090 to 1150 deg F range are more typical.
Typically I'm full throttle up those grades the whole way. On the lesser grades as I can do better than 65 MPH, I back out of the throttle and the EGT drops.
I haven't pulled the trailer up a grade yet where I couldn't maintain at least 50 MPH and more typically at least 55 MPH.
My father in-law was just amazed when he rode with me on one trip. Having pulled a lot of those same hills with a gasser rig and lesser weight trailer over the years he was usually down in a lower gear and straining to make 40 to 45 MPH with the motor screaming. And getting less than 5 MPG too :-)
With the factory tune and pulling a 10 klb trailer up some pretty good grades in the So. Cal mountains, the highest EGT that I saw was right around 1200 or 1230 I think, I'd have to search my earlier posts. This was in 100 deg F. heat and with some 8% or better grades thrown in. Those were peaks, numbers in the 1090 to 1150 deg F range are more typical.
Typically I'm full throttle up those grades the whole way. On the lesser grades as I can do better than 65 MPH, I back out of the throttle and the EGT drops.
I haven't pulled the trailer up a grade yet where I couldn't maintain at least 50 MPH and more typically at least 55 MPH.
My father in-law was just amazed when he rode with me on one trip. Having pulled a lot of those same hills with a gasser rig and lesser weight trailer over the years he was usually down in a lower gear and straining to make 40 to 45 MPH with the motor screaming. And getting less than 5 MPG too :-)
Cargo Master
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From: Carlsbad, California
Originally Posted by jdadamsjr
I'm like you rstephenw !!!
In the real world would anybody be ABLE to keep it that high for very long ????
Maybe going over a LONG pass with MUCH too much weight hanging off the back...
Maybe in the LONG 100 mile legal road races in far west texas at 100+ mph ???
I'm thinking you run out of road and effort before you can FORCE it that high for too long...
In the real world would anybody be ABLE to keep it that high for very long ????
Maybe going over a LONG pass with MUCH too much weight hanging off the back...
Maybe in the LONG 100 mile legal road races in far west texas at 100+ mph ???
I'm thinking you run out of road and effort before you can FORCE it that high for too long...
The only way you're really going to see sustained EGTs that high over several minutes would be to use a non-Factory tune and do a long up hill pull with a lot of weight on the trailer.
Daryl
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From: 3rd Rock
A number of my climbs routinely are from 4500 feet to 12k in 10 miles or less so you can if you want melt the motor.
A few are a bit steeper, however they start at 9k and go to 11.6 in two miles.
A few are a bit steeper, however they start at 9k and go to 11.6 in two miles.
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Cargo Master
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From: Carlsbad, California
I think that I would have more correctly stated my case if I had said:
"The only way you're going to see sustained EGTs that high over several minutes would be to do a long up hill pull with enough weight on the trailer or to use a non-factory while pulling."
Rather than:
"The only way you're really going to see sustained EGTs that high over several minutes would be to use a non-Factory tune and do a long up hill pull with a lot of weight on the trailer."
Now just what enough weight is I don't know. I do know that my combined truck and trailer weighed in at just over 18,000 lbs the one time that I weighed it.
I do have a suspicion that if you put enough weight on the trailer, the truck will slow down and upshift, thereby dropping the EGT. At some point adding weight may have no additional effect on raised EGTs. This is just a guess, I may be full of hooey
.
Daryl
"The only way you're going to see sustained EGTs that high over several minutes would be to do a long up hill pull with enough weight on the trailer or to use a non-factory while pulling."
Rather than:
"The only way you're really going to see sustained EGTs that high over several minutes would be to use a non-Factory tune and do a long up hill pull with a lot of weight on the trailer."
Now just what enough weight is I don't know. I do know that my combined truck and trailer weighed in at just over 18,000 lbs the one time that I weighed it.
I do have a suspicion that if you put enough weight on the trailer, the truck will slow down and upshift, thereby dropping the EGT. At some point adding weight may have no additional effect on raised EGTs. This is just a guess, I may be full of hooey
.Daryl
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From: 3rd Rock
Originally Posted by darylhunter
I think that I would have more correctly stated my case if I had said:
"The only way you're going to see sustained EGTs that high over several minutes would be to do a long up hill pull with enough weight on the trailer or to use a non-factory while pulling."
Rather than:
"The only way you're really going to see sustained EGTs that high over several minutes would be to use a non-Factory tune and do a long up hill pull with a lot of weight on the trailer."
Now just what enough weight is I don't know. I do know that my combined truck and trailer weighed in at just over 18,000 lbs the one time that I weighed it.
I do have a suspicion that if you put enough weight on the trailer, the truck will slow down and upshift, thereby dropping the EGT. At some point adding weight may have no additional effect on raised EGTs. This is just a guess, I may be full of hooey .
Daryl
"The only way you're going to see sustained EGTs that high over several minutes would be to do a long up hill pull with enough weight on the trailer or to use a non-factory while pulling."
Rather than:
"The only way you're really going to see sustained EGTs that high over several minutes would be to use a non-Factory tune and do a long up hill pull with a lot of weight on the trailer."
Now just what enough weight is I don't know. I do know that my combined truck and trailer weighed in at just over 18,000 lbs the one time that I weighed it.
I do have a suspicion that if you put enough weight on the trailer, the truck will slow down and upshift, thereby dropping the EGT. At some point adding weight may have no additional effect on raised EGTs. This is just a guess, I may be full of hooey
.Daryl
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