Stock Gen III owners with guages...

[BigGunZ]

I'm looking to gather some data from Gen III owners whose trucks are stock that also have boost/EGT guages. Airflow/exhaust mods are OK but no fueling mods, boxes, etc. If you have a performance box that can be set to stock, don't just set it there and take numbers... I'd prefer that you drove at least 200 miles at that setting first.

What I'm looking for is...

EGT at idle
EGT/boost @ 50mph, level ground
EGT/boost @ 65mph, level ground
Max EGT/boost through the gears during a WOT pull from a dig

Please specify whether 2WD, 4WD, DRW, rear diff ratio, and whether you have non factory tires (ie taller), auto or manual, and approx air temp

Dyno numbers would be helpful if you ever did a pull.

If you're just going from memory of the way your truck was set up in the past, please state so.

 

[KBertetto]

I'm looking to gather some data from Gen III owners whose trucks are stock that also have boost/EGT guages. Airflow/exhaust mods are OK but no fueling mods, boxes, etc. If you have a performance box that can be set to stock, don't just set it there and take numbers... I'd prefer that you drove at least 200 miles at that setting first.



What I'm looking for is...



EGT at idle

EGT/boost @ 50mph, level ground

EGT/boost @ 65mph, level ground

Max EGT/boost through the gears during a WOT pull from a dig



Please specify whether 2WD, 4WD, DRW, rear diff ratio, and whether you have non factory tires (ie taller)



Dyno numbers would be helpful if you ever did a pull.



If you're just going from memory of the way your truck was set up in the past, please state so.

I can help you out a little, my truck is stock except for the intake and exhaust. I only have an EGT gauge (pre turbo), no boost. I pull a 10k fiver quite regularly through some mountainous terrain... here's what I get:



EGT at Idle: 200

EGT @50 level ground no load: 450

EGT @65 level ground no load: 500-600

Max EGT through the gears with my foot in it: 1300 (5th) it cools down to 1200 in 6th even with my foot still in it

Max EGT while towing 10k in the mountains: I've hit 1400 in 5th and let off, 6th will only hit 1300... 5th is direct drive by the way.



Hope this helps you out some.



Bert

 

[BigGunZ]

I've hit 1400 in 5th and let off, 6th will only hit 1300... 5th is direct drive by the way.

What do you mean by 5th is direct drive... are you saying that it's a true 1:1 ratio in that gear? Also, being in Anchorage is it safe to assume these numbers were obtained in relatively cool/cold air.

 

[WHazelwood]

My 04. 5 is completely stock. I mostly drive empty but do pull a 10,000 5th wheel.

With my automatic, empty it pegs the boost on a 30psi gauge, pulling it'll peg it and then settle back to about 25 psi.

idle temp = 250 to 300 depending oh how hot the day is.

empty at 50 mph it runs about 500

empty at 60-65 it'll run about 550-600

pulling at 50 it runs about 700

pulling at 60-65 it runs about 750-800

Max temps I've seen was about 1250 pulling up agrade in 3rd gear.

Hope this helps

Keep grinnin,

 

[rbattelle]

EGT at idle

EGT/boost @ 50mph, level ground

EGT/boost @ 65mph, level ground

Max EGT/boost through the gears during a WOT pull from a dig

Pre or post turbo EGT? At what ambient conditions? At what altitude?



-Ryan

 

[KBertetto]

What do you mean by 5th is direct drive... are you saying that it's a true 1:1 ratio in that gear? Also, being in Anchorage is it safe to assume these numbers were obtained in relatively cool/cold air.

I achieved those numbers in about 60 degree weather. 5th gear on the NV5600 is 1:1... Maybe direct drive isn't the most correct term, but it seems to have worked because you caught what I was trying to get across. To the best of my knowledge, the new G56 is the same as far as being "direct drive" in 5th also. At 60 degrees I find it fairly easy to hit 1400 EGT pulling hard in 5th up a big grade. Hope I answered your questions.



Bert

 

[bmoeller]

5th gear on the NV5600 is 1:1... Maybe direct drive isn't the most correct term

Yes, direct drive would be the correct term for 5th on the 6spd and 4th on the 5spd. 6th is overdrive, or 5th on the 5spd. Direct drive is 1:1. Any other gear would not be, because it changes the ratio.

 

[WHazelwood]

Pre or post turbo EGT? At what ambient conditions? At what altitude?



-Ryan

My numbers were this summer 90 + deg. F. One trip was Atlanta (900ft. elev. ) to Washington DC through NC & VA, the other was Atlanta to Panama City, FL.

the DC trip was hotter, it hit 102 deg. one day while there.

Keep grinnin,

 

[RMachida]

EGT at Idle: 200

EGT @50 level ground no load: 450

EGT @65 level ground no load: 500-600

Max EGT through the gears with my foot in it: 1300 (5th) it cools down to 1200 in 6th even with my foot still in it

My numbers are identical to those posted by Bert&Holi. No mods.

 

[Giachino]

anyone have any data for egt's on a 600/610 doing 90-95mph sustained... . i have the auto with 3. 73's and she's turning about 2500-2800 rpm's... . just curious as i was doing those speeds for a few hours today...

 

[PTalley]

Giachino,

I ran that fast today with the Juice on 1 with the boost in the mid teens The higest I saw was 750. But @ that RPM there really drinking that diesel

 

[FJfonda]

anyone have any data for egt's on a 600/610 doing 90-95mph sustained... . i have the auto with 3. 73's and she's turning about 2500-2800 rpm's... . just curious as i was doing those speeds for a few hours today...

I'd be more worried about tire temps at that speed than EGT's



EGT at idle === >200

EGT/boost @ 50mph, level ground ===> not sure --- rarely do this not towing

EGT/boost @ 65mph, level ground ===> not sure --- rarely do this not towing

Max EGT/boost through the gears during a WOT pull from a dig ===> 1350/28

 

[tsi_2baad4u]

I can't say for 90mph but I've got an '05 3500 QC DRW 4x4 G56 with boost/egt/fuel press gauges, here's what I found. Driving I-90 in MT and WY, I couldn't even maintain 75mph up mountain passes without the EGTs getting too hot. Truck was empty, 8200lbs w/passengers on a 80deg day and EGTs going up passes were from 1200F up to 1300F+, (I let off at 1300F). If I slowed down to 70mph it made all the difference in the world, dropped EGTs to 1000-1100F. EGTs were acceptable on flat ground, around 800F at 75-80mph.



Truck has stock fueling with big K&N & homemade torque tube, combo 4"/5" dual exhaust without the cat con. I was surprised to see EGTs that high without a cat and empty. It can easily hit 1300F doing a 2nd-6th WOT run.

 

[DocDetonancour]

I'm looking to gather some data from Gen III owners whose trucks are stock that also have boost/EGT guages. Airflow/exhaust mods are OK but no fueling mods, boxes, etc. If you have a performance box that can be set to stock, don't just set it there and take numbers... I'd prefer that you drove at least 200 miles at that setting first.



What I'm looking for is...



EGT at idle

EGT/boost @ 50mph, level ground

EGT/boost @ 65mph, level ground

Max EGT/boost through the gears during a WOT pull from a dig



Please specify whether 2WD, 4WD, DRW, rear diff ratio, and whether you have non factory tires (ie taller), auto or manual, and approx air temp

Idle is 300

65 tp 70 mph is 6 lbs and 600 egt on fairly level ground, not much of it in Spudville



Dyno numbers would be helpful if you ever did a pull.



If you're just going from memory of the way your truck was set up in the past, please state so.

My 04 is the 48re with the 373. 300egt at idle, 600 egt at 65 to 70 mph and 6 pounds of boost when loping along Idaho ribbons. Truck is stock except for exhaust and air intake. Doc

 

[drewRoberts]

4wd, 4. 10 rear axel, NV5600. still stock



idle between 2-350 depending on either start-up or just pulled to a stop light.

50 level. . . . 5-600 W/5-7 pounds

65 level. . . . 550-700 w/5-8 pounds

max egt and boost. I can peg 35 pounds in 5 and 6 gears. 1st max is about 5 pounds, 2nd is about 10, 3rd is about 15pounds 4 is about 15-20 depending on grade. 1-3 gears max EGT is about 700, 5-6 max egt is about 1200 while towing 8k and having a little fun



BTW, I have checked my boost gage here at work and bumped it against my pneumatic pressure standard, my gage was about . 5 pounds high throughout the scale.



this pic was taken level ground, 6th, throttle to the floor and at time of pic I was doing about 80-85. waste gate had just opened and EGT's were still on the way up.

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