Powerstroke EGT's

1-tonmudder

1-tonmudder

Doin my part to stir the pot.
Joined
Apr 17, 2005
Location
Greeneville TN
About three weeks ago I got my DP 6 postion chip and gauges put on my 01 CC.EGT's run around 600-800 empty w the 80hp econo tune.Pulled our 32 foot camper (roughly 5000lbs) up int 81 for about three hours w the 80hp tow tune,temps on long hills stayed around 1200 and spiked to 1350 a time or two for a very short time,I got off the gas to get the temp back down.

So whats everybodies temp usually run?? I've had diesels before but this one is the first that was worth doin any mods to so Im kinda in the dark about what is normal.

Whats the best drivin habit to keep the temp down??? Do I need to back down to the 60hp tow tune on long hills??? It pulled all the way there and back at 75 w the cruise on and only came out of o/d when the temp was gettin up or traffic slowed.Trans never got over 180.

Truck is a 01 w the 4r100 automatic w a John woods VB.3:73's,straight exhaust(no muffler/conv) and a tymar air filter.
 
As solar asked, where's the probe installed?
Everything I've read/heard says to install it pre-turbo to know the temps your turbo is actually seing...there is actually one person who has a triple gauge pod with 3 EGT gauges (2 pre-turbo - one in each manifold & 1 post-turbo), but that seems overkill to me.
That being said, I've read/heard the Powerstroke turbo is designed to run at 1250*F continuous or 1400*F spike...so you were close but should be good.

With my old '96 CC F350, when I was towing I drove by RPMs to keep fuel mileage up and when going uphill, I drove by the EGTs and tried to keep it from going above 1150*F.
 
If the thermocouple is before the turbine inlet those temperatures are ok, 1350 is getting a little hot, but if it is only there for a short time it is ok. Ideally you would want to keep them up to but not above 1300ish.

If those temps are with the thermocouple after the turbo, I would be a little worried. After the turbo temps should be 2-300 degrees colder.

Since you do have the easily selectable chip, I would bump it down to the 60hp tow tune on the steeper hills and see what that gets you. You honestly probably won't feel a huge difference, as the higher EGTs are a result of overfueling, meaning your engine is not able to use that extra fuel, so it is being wasted and turned into heat.

Edit: just to add to Lurch's comment above, it's not the temperature the turbo is designed to run at that is in question, but rather the high combustion chamber temperatures doing damage. Although the high heat will do damage to the turbo as well.
 
I see 1200 to 1250 regularly when towing weight down here for work(read mostly flat).....thats also towing on my 100hp tune....i will bump it back to my 75 with a real heavy load. The highest ive peaked at so far is 1316 with a grizzly 660 in the bed 100hp tune going up the mountain on 421 runnin 75......this is also a nonintercooled truck
 
I am seeing close to the same temps today when I pulled Fancy Gap. No tune at all, stock everything. 7.3
 
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