How long can I tow with a sustained temp on the pyro of 1200 deg? I came up the Grapevine today and it stayed there for quite a while. I didn't ever get above that I don't think. ALL of the gauges (tranny and engine temp) were PERFECT! I have the Hypertech on level 2.

all ive ever heard is that 1350 sustained is too much, if youre under that i would say you can keep it there as long as you need to.

Have also heard that 1300-1350 is the temp to stay away from.

I may have hit 1300-1350 but not for any sustained amount of time.

sounds like you need to get a bigger exhaust or different programmer. You are safe for now, but I rarely hit over 1100 in the hills of Alaska and that was before I straight piped it. There have been only a couple of times I hit 1300 and I was playing around one of those times and the other I hit a hill at WOT to pass someone when I was towing a pop-up. I am assuming you were towing your camper when you saw these temps. I will be pulling a 32 ft camper this weekend, I will see how the truck does on EGTs. Of course it is hard to compare from here to there because of temp differences, but I usually only run about a 45 hp tune when I tow anyway. Level 2 on yours is definately more than that right?

In stock configuration, except for 4" flowthru muffler and resonator, I have hit 1450 for several minutes while climbing AZ mountains and pulling a 14K in the 100+ degree summers of AZ. I have heard a ton of comments about 'max sustained turbo temps" for several years now. I firmly believe that the GM designers had this in mind. In reality, if you didn't have the pyro in place (like stock configuration) how would you know what the temps were? Would you "back out of it" while climbing steep hills if you didn't know the temp? I doubt it. Those of us that have the pryo in place are always concerned of too high an EGT, but if GM was concerned, why would they build a truck to pull these weights and not put a pyro in place with a warning "not to exceed"?

In the several years that I have been a member of this site, I have not heard of a single problem from high EGTs except from those that were 'going to the max' with multiple programmers and doing more than the truck was designed.

Built tough, 'Like a Rock', use it like the truck it is!!

I doubt 1350 will have any effect since a stock truck will run up there in some conditions.

I've seen my truck run 1250 with about 8000lbs in tow up and down the east cost mountains with Hypertech on level 3. I tend to take off overdrive and it'll back down a gear, and temps for me dropped.

In stock configuration, except for 4" flowthru muffler and resonator, I have hit 1450 for several minutes while climbing AZ mountains and pulling a 14K in the 100+ degree summers of AZ. I have heard a ton of comments about 'max sustained turbo temps" for several years now. I firmly believe that the GM designers had this in mind. In reality, if you didn't have the pyro in place (like stock configuration) how would you know what the temps were? Would you "back out of it" while climbing steep hills if you didn't know the temp? I doubt it. Those of us that have the pryo in place are always concerned of too high an EGT, but if GM was concerned, why would they build a truck to pull these weights and not put a pyro in place with a warning "not to exceed"?

In the several years that I have been a member of this site, I have not heard of a single problem from high EGTs except from those that were 'going to the max' with multiple programmers and doing more than the truck was designed.

Built tough, 'Like a Rock', use it like the truck it is!!

I totally agree 100%:grd:

1200 degrees sounds perfectly safe to me as long as your pyro is mounted in the exhaust manifold, NOT post turbo. I wouldn't be worried at all at 1200 degrees, but then again i'm hard on things.

In stock configuration, except for 4" flowthru muffler and resonator, I have hit 1450 for several minutes while climbing AZ mountains and pulling a 14K in the 100+ degree summers of AZ. I have heard a ton of comments about 'max sustained turbo temps" for several years now. I firmly believe that the GM designers had this in mind. In reality, if you didn't have the pyro in place (like stock configuration) how would you know what the temps were? Would you "back out of it" while climbing steep hills if you didn't know the temp? I doubt it. Those of us that have the pryo in place are always concerned of too high an EGT, but if GM was concerned, why would they build a truck to pull these weights and not put a pyro in place with a warning "not to exceed"?

In the several years that I have been a member of this site, I have not heard of a single problem from high EGTs except from those that were 'going to the max' with multiple programmers and doing more than the truck was designed.

Built tough, 'Like a Rock', use it like the truck it is!!


they built a stock truck, not one with all the tuners and stuff that are out now. most "hot" tunes PPE TTS etc will get up to 1700+

I stand on my comment. All the tuners out there can push the EGTs off the map. The point I was making is that the EGTs in <1500 range should not be much of a concern, unless held there for a very long period of time. Point is, the aluminum pistons will melt down long before a turbo failure, since that's where all the heat is generated in the first place.

I stand on my comment. All the tuners out there can push the EGTs off the map. The point I was making is that the EGTs in <1500 range should not be much of a concern, unless held there for a very long period of time. Point is, the aluminum pistons will melt down long before a turbo failure, since that's where all the heat is generated in the first place.

thats what im saying, as long as the truck is stock run the hell out of it, they didnt give you an egt gauge so you should be able to run it hard and not hurt it by getting the egt's too high. but, he is using a tuner so there is a chance that the temps could get up into the danger zone

I have a tuner also. Pull with the EDGE at level 2. The EGTs are very similar on the same pulls with the same outside temperature. Mind you I said 'similar'. Yes with the tuner on level 2, my temps are a little higher (150 degrees max) but that is on an extremely long hard pull. Now, I grant you the temps do increase at a faster rate, but they do not get much higher. And still, MOST of the time they stay <1500 degrees. Naturally, like the rest of us that worry about EGTs, I usually hit the ODLO, or drop a gear manually, and then flog her!! :whip: :muahaha:

On numerous occassions when the EDGE was removed and I pulled the same mountains, I got to <1500 degrees, but I stayed there longer because I could not pull to the top at a higher speed. Therefore with the EDGE installed, the time period at higher temps was less.

So as I always believed, faster is better! :ro)

On level 2 I think it's an additionsl 65 hp. My EGT is installed PRE turbo ( in manifold). I am going to assume things are OK if I keep it under 1300.

You keep under 1300, you'll sleep well knowing you aren't hurting anything and still get to the top of the hill comfortably!

You keep under 1300, you'll sleep well knowing you aren't hurting anything and still get to the top of the hill comfortably!

yup