EGT's
Thread Starter
|
New User
Joined: Aug 2004
Posts: 11
Likes: 0
EGT's
have a 2000 E450 Super Duty with Powerstroke -- pull up through a lot of mountain passes with loads nearing max gvw and altitudes in 4-5000 ft range --- cant find proper information in regards to limits on egt's -- currently run at 900-1000 with 10-17 lbs boost -- some shops tell me it is ok to go higher with temp and other tell me this is already max -- any help -- have diablo program in but egts about the same just the buildup is faster -- graham
Hotshot
Joined: Dec 2003
Posts: 15,368
Likes: 121
From: Stuttgart, Ar
It depends on where you're taking the temp reading from--pre turbo (usually in the drivers exhaust manifold) is higher and post turbo (in the elbow going to the exhaust) is usually quite a bit lower. not sure about a 7.3, but those temps for a 6.0 would be excellent pre turbo temps. I think the difference is to add about 250 for post turbo temps. so depends on where your probe is--post turbo and those temps would be dangerous--Pistons is what you really have to worry about tho.
Tuned
Joined: May 2003
Posts: 303
Likes: 2
From: Kentucky
I have the 85hp tune in mine and I can get 1450 before I get into 3rd gear. Mine is an automatic. It will stay there for a couple of seconds and then will start to fall. Should I be concerned? I can't believe it gets that hot that quick.
Thread Starter
|
New User
Joined: Aug 2004
Posts: 11
Likes: 0
Originally Posted by FoMoCo136
I have the 85hp tune in mine and I can get 1450 before I get into 3rd gear. Mine is an automatic. It will stay there for a couple of seconds and then will start to fall. Should I be concerned? I can't believe it gets that hot that quick.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 15
From: Nutter Fort, WV
The pistons start to melt at 1250 and the turbine in the turbo starts to soften at 1270.
If you like your motor, keep it under 1200 degrees pre turbo or 900 post turbo.
It does not make any difference if you are talking a 6.9, 7.3, Power Stroke 7.3, Power Stroke 6.0 or a 14 liter 600 Cummins.
The amount of boost does not change where the metal starts melting.
If you like your motor, keep it under 1200 degrees pre turbo or 900 post turbo.
It does not make any difference if you are talking a 6.9, 7.3, Power Stroke 7.3, Power Stroke 6.0 or a 14 liter 600 Cummins.
The amount of boost does not change where the metal starts melting.
Trending Topics
Thread Starter
|
New User
Joined: Aug 2004
Posts: 11
Likes: 0
Originally Posted by Dave Sponaugle
The pistons start to melt at 1250 and the turbine in the turbo starts to soften at 1270.
If you like your motor, keep it under 1200 degrees pre turbo or 900 post turbo.
It does not make any difference if you are talking a 6.9, 7.3, Power Stroke 7.3, Power Stroke 6.0 or a 14 liter 600 Cummins.
The amount of boost does not change where the metal starts melting.
If you like your motor, keep it under 1200 degrees pre turbo or 900 post turbo.
It does not make any difference if you are talking a 6.9, 7.3, Power Stroke 7.3, Power Stroke 6.0 or a 14 liter 600 Cummins.
The amount of boost does not change where the metal starts melting.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Thread Starter
|
New User
Joined: Aug 2004
Posts: 11
Likes: 0
Originally Posted by Fire Rooster
Go to banks performance and click on know your gauges. There is a lot of useful info on the boost and pyrometer there.
Fire Rooster
Fire Rooster
FTE Leadership Emeritus
Joined: May 2001
Posts: 13,653
Likes: 6
From: Cabot, Arkansas
Forged aluminum will melt at 1250-1300 degrees, but it's like putting a pot of water on the stove...the stove is hot enough to boil the water, but you still have to wait for the water to get hot enough. Not really something you need to worry about unless you stay above 1300 for an extended period.
The turbine wheel is made of Inconel...similar to your pyrometer probe, which has a pour point around 2900*F and is calibrated to 2300*F. (pre-turbo). I can't imagine a PSD being able to make enough heat to melt it...but what do I know.
The turbine wheel is made of Inconel...similar to your pyrometer probe, which has a pour point around 2900*F and is calibrated to 2300*F. (pre-turbo). I can't imagine a PSD being able to make enough heat to melt it...but what do I know.
Fleet Mechanic
Joined: Feb 2004
Posts: 1,816
Likes: 3
From: River Valley AR
Well you guys beat me to it but here's a good link on the subject:
http://www.bankspower.com/Tech_whyegt.cfm
http://www.bankspower.com/Tech_whyegt.cfm
Thread Starter
|
New User
Joined: Aug 2004
Posts: 11
Likes: 0
Originally Posted by cookie88
Forged aluminum will melt at 1250-1300 degrees, but it's like putting a pot of water on the stove...the stove is hot enough to boil the water, but you still have to wait for the water to get hot enough. Not really something you need to worry about unless you stay above 1300 for an extended period.
The turbine wheel is made of Inconel...similar to your pyrometer probe, which has a pour point around 2900*F and is calibrated to 2300*F. (pre-turbo). I can't imagine a PSD being able to make enough heat to melt it...but what do I know.
The turbine wheel is made of Inconel...similar to your pyrometer probe, which has a pour point around 2900*F and is calibrated to 2300*F. (pre-turbo). I can't imagine a PSD being able to make enough heat to melt it...but what do I know.
Thread Starter
|
New User
Joined: Aug 2004
Posts: 11
Likes: 0
Originally Posted by bodabdan
Well you guys beat me to it but here's a good link on the subject:
http://www.bankspower.com/Tech_whyegt.cfm
http://www.bankspower.com/Tech_whyegt.cfm
Fleet Mechanic
Joined: Feb 2004
Posts: 1,816
Likes: 3
From: River Valley AR
Yea, that one is easy to overlook. Poor airflow can kill a motor. Makes you look at your air filter differently doesn't it?
I got a bunch of people fired up about the intake issue a while back. IMO a turbo is pushing the air in so flow is going to happen one way or another. The design is good enough for all but the most serious of us.
I also am skeptical of manufacturer's claims. I once read a Summit catalog and added on 10hp here, 25 there, and so on. I got to 1,000 hp really quick and I didn't even have a block yet.
That's what makes this forum nice. If someone buys it and it is a piece of crud, you will hear about it here. If you can do it yourself for $10 instead of getting taken for $300 you will hear about it here. The sponsors of this site all have excellent reputations with the users I've known here. Many of them go the extra mile and drive and own these trucks as well.
One thing that helped me catch on was Steve Baz's website.
http://pages.prodigy.net/stevebaz/_import/pages.prodigy.net/stevebaz/index3.html
Lot's of good info out there. Good luck and welcome to FTE.
I got a bunch of people fired up about the intake issue a while back. IMO a turbo is pushing the air in so flow is going to happen one way or another. The design is good enough for all but the most serious of us.
I also am skeptical of manufacturer's claims. I once read a Summit catalog and added on 10hp here, 25 there, and so on. I got to 1,000 hp really quick and I didn't even have a block yet.
That's what makes this forum nice. If someone buys it and it is a piece of crud, you will hear about it here. If you can do it yourself for $10 instead of getting taken for $300 you will hear about it here. The sponsors of this site all have excellent reputations with the users I've known here. Many of them go the extra mile and drive and own these trucks as well.
One thing that helped me catch on was Steve Baz's website.
http://pages.prodigy.net/stevebaz/_import/pages.prodigy.net/stevebaz/index3.html
Lot's of good info out there. Good luck and welcome to FTE.