EGT Concerns

[CTRice]

Hi guys,



I just drove from Detroit Area to Hot Springs AK. I am pulling a 2001 Cardinal 28ft. Fiver with two slides. I have not tried to overdo the fuel pedal going up some foothills, but have touched 910 degrees F post turbo a couple of times. Is this normal?? I thought that my CTD could take my fiver through the Rockies, but having seen these EGTs, I am afraid to attempt it.



My truck has about 5,000 miles and I have installed a condensor guard

that Genos sells to protect the fins. I am going to have my rig weighed at a truck stop to determine the weights. I will post them when I do.



In the meantime, what have been your EGT experiences towing?



I would appreciate any input you guys could share with me. What should I do to lower the temps, or will they go down naturally as the truck gets more miles???



Thanks, Chuck

_____________________________________________________________

2006 Laramie 3500 QC SB 4x4 48re

2001 Cardinal 28ft twin slide Fiver

 

[chazj]

When I pull my 10K Arctic Fox with my 02 Ram, I often see 1200-1250 degrees (Pre-Turbo) when climbing hills. The addition of a 4" exhaust system from the turbo back helped a bit in lowering these temps along with downshifting to increase boost & air flow.



That said, under very mountainess conditions (Hwy 88 over the Sierra Nevada), I find myself "backing off the pedal" to keep the EGT's around 1200 degrees Max. I think the newer generation CTD's are more forgiving of high EGT's than my 02.

 

[Gonzo 1066]

EGT's

I am mesuring pre turbo, in a dry hot climate bone stock it will reach 1400 easy!! I called Cummins and they said the new common rail engine was normal up to 1400! I redid the intake and added a Edge Juce and the egts came down a bit.

 

[flyairam]

chuck,



My '06 is stock with guages. Pulling my 10,000 pound Arctic Fox, my EGT's will go up to the mid 1200 degrees, sometimes pushing 1300. This is pre-turbo, a much more accurate measurement. But it's also pulling in the mountains of Colorado and New Mexico - altitude makes them run hotter.



As someone else pointed out, the '06 truck has different valve seats and is capable of running hotter temps than earlier models. The engines are programed so that they do not exceed safe EGT's as long as everything is in good working order.



Lastly, Mark Chapple at TST told me one time that he observed a 12 valve Cummins running on the test stand for hundreds of hours at 1300 degrees EGT. I think we may have more cushion room than many believe.



As with all things metal, it may not be the absolute temperature but the range of temps and the speed at which it changes, ie, cool down times and even driving.



Randy

 

[jnelson]

Pulling weights up to 23,000 (trailer and load) I have had EGT's just on acceleration get up to 1300. Pulling a load to east texas the other day I averaged 900. tall heavy load. My pyro is post turbo, as cummins does not test and have temps pre-turbo.



Temps up to 1500 may be reached and sustained for very short period without damage.





. 02

 

[JCasper]

Pulling hills around the NW here with just a empty 18' flatbed I could see 1000 post turbo temps. That is running fast 65+ on the hills. Coming back weighing just under 21K gross on the same passes I was in 5th gear vs 6th when empty and the EGT's stayed around 850-900 at about 50 MPH. All this is before my Smarty, I have not yet pulled with it. Now with the Smarty on a hard accelaration I will see 1100* before I leave 5th gear.



What gear are you pulling the hills in?

 

[ColemanR]

chuck,



My '06 is stock with guages. Pulling my 10,000 pound Arctic Fox, my EGT's will go up to the mid 1200 degrees, sometimes pushing 1300. This is pre-turbo, a much more accurate measurement. But it's also pulling in the mountains of Colorado and New Mexico - altitude makes them run hotter.



As someone else pointed out, the '06 truck has different valve seats and is capable of running hotter temps than earlier models.

Lastly, Mark Chapple at TST told me one time that he observed a 12 valve Cummins running on the test stand for hundreds of hours at 1300 degrees EGT. I think we may have more cushion room than many believe.



As with all things metal, it may not be the absolute temperature but the range of temps and the speed at which it changes, ie, cool down times and even driving.



Randy

The engines are programed so that they do not exceed safe EGT's as long as everything is in good working order. My 06 will peg my pyro preturbo no problem so im not sure they will protect themselfs thats why you better have gauges. Just got my smarty hopeing to cool her down a little when towing just watch your gauges and drive by them on big hills I run it up to 1400egt and just ride out the hill Randy

 

[JMartynowski]

The engines are programed so that they do not exceed safe EGT's as long as everything is in good working order. My 06 will peg my pyro preturbo no problem so im not sure they will protect themselfs thats why you better have gauges. Just got my smarty hopeing to cool her down a little when towing just watch your gauges and drive by them on big hills I run it up to 1400egt and just ride out the hill Randy

I just got a smarty for my 06 hoping to cool it down a bit while towing also.

I was wondering where everyone else is setting theres to achieve that, and have you had any results?

 

[JMetzger]

FWIW, I see the same temps as chazj going over the same highway (88) as he does. Same year truck & same weight trailer as his.

 

[WCounts]

I like to inject water while towing. Really cools things down.

 

[ColemanR]

Well Im leaving on a 12000mile trip on feb6th will return approx feb18th will be trying differant setting on the smarty for best mileage and temp will post results when I return Randy