High EGT's after exhaust install - Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 Old 02-16-2013, 04:23 AM Thread Starter
Member
 
Join Date: Jun 2012
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
High EGT's after exhaust install

My EGT'S with the stock exhaust would reach mid 1200's at WOT...but after installing a turbo back 5" MBRP aluminized (with no cat) exhaust system, my EGT'S are reaching 1600's at WOT.

After searching and reading several threads I have two questions:

First and most important.

1. What would be the probable cause of the 400 degree rise after installing the exhaust?

.....and least important but just curious

2. What is a "turbo fart"?

Thanks

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”
― Albert Einstein

2006 F250-Sinister coolant filter, Amsoil bypass oil filter, CTS Edge, 5" MBRP exhaust (off road), blue spring....
new2fossil is offline  
post #2 of 17 Old 02-16-2013, 09:12 AM
Fill it up again Dummy
 
mhatlen's Avatar
 
Join Date: Sep 2012
Location: Central Valley, Sierra Mountains, California
Posts: 2,312
Thanks: 38
Thanked 112 Times in 101 Posts
Mentioned: 6 Post(s)
Quoted: 191 Post(s)
Feedback Score: 0 reviews
Is the temp sender in the same place and is it the same sender?

Turbo fart is when the turbo starts spooling up and you drop off the accelarator pedal too fast the boost created has no where to go exept back out the intake (air filter).

Did you change the tune you are running? What is the temp now at say 65mph compared to before you straight piped it. That should be lower now........?


2006 F250 LARIAT CCSB 4X4
ARP Studs, O-Ringed Heads
X4 PHP 65 HP Custom Tow Tune
Atlas40 Ficm Tune
CAT EC-1 Coolant, IPR Coolant filter
Fass-125 to a Adjustable Pressure Reg.
Turbo-back SS 4" pipe, Corsa Muffler -7" Tip
6.4 starter, DC Power 270 amp alt
Die Hard Platinum AGM all 2/0 Cables
7" lift w: Icon Progressive Coil Springs
2008 up Carli/Deaver rear springs
All riding on some Fatty-Daddy 38/15.50/18 Toyo's
mhatlen is offline  
post #3 of 17 Old 02-17-2013, 03:28 AM Thread Starter
Member
 
Join Date: Jun 2012
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by mhatlen View Post
Is the temp sender in the same place and is it the same sender?

Turbo fart is when the turbo starts spooling up and you drop off the accelarator pedal too fast the boost created has no where to go exept back out the intake (air filter).

Did you change the tune you are running? What is the temp now at say 65mph compared to before you straight piped it. That should be lower now........?
Tanks for the reply,

Everything is exactly the same on the truck...tune, probe location, driving conditions...ECT.

The only thing that changed was the exhaust.

I can't say if my EGTs are better or worse at 65mph. I only know that at WOT it peaks at around 1600, about 400 more than when the stock system was on.

I'm thinking that I might have done something wrong with the install or maybe broke something during the processes.

Thanks

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”
― Albert Einstein

2006 F250-Sinister coolant filter, Amsoil bypass oil filter, CTS Edge, 5" MBRP exhaust (off road), blue spring....
new2fossil is offline  
post #4 of 17 Old 02-17-2013, 01:22 PM Thread Starter
Member
 
Join Date: Jun 2012
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by mhatlen View Post
Is the temp sender in the same place and is it the same sender?

Turbo fart is when the turbo starts spooling up and you drop off the accelarator pedal too fast the boost created has no where to go exept back out the intake (air filter).

Did you change the tune you are running? What is the temp now at say 65mph compared to before you straight piped it. That should be lower now........?
Any ideas.....? Any reason at all that would cause high EGTs at WOT? It doesn't need to relate to the new exhaust install.

Thanks

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”
― Albert Einstein

2006 F250-Sinister coolant filter, Amsoil bypass oil filter, CTS Edge, 5" MBRP exhaust (off road), blue spring....
new2fossil is offline  
post #5 of 17 Old 02-17-2013, 06:58 PM
Fill it up again Dummy
 
mhatlen's Avatar
 
Join Date: Sep 2012
Location: Central Valley, Sierra Mountains, California
Posts: 2,312
Thanks: 38
Thanked 112 Times in 101 Posts
Mentioned: 6 Post(s)
Quoted: 191 Post(s)
Feedback Score: 0 reviews
I don't have a temp gauge on my truck so I can't give you a comparison. How does it feel in comparison to power before you installed the 5".
It may be flowing that much more and the heat is exiting the turbo faster?? It makes sense to me but how fast does it drop after you are out of the throttle?? More flow better fire more heat, key is how long is it at those temps and of coarse what is a typical exhaust temp with a 5" pipe.

Someone with exhaust temp gauge will hopefully chime in.


2006 F250 LARIAT CCSB 4X4
ARP Studs, O-Ringed Heads
X4 PHP 65 HP Custom Tow Tune
Atlas40 Ficm Tune
CAT EC-1 Coolant, IPR Coolant filter
Fass-125 to a Adjustable Pressure Reg.
Turbo-back SS 4" pipe, Corsa Muffler -7" Tip
6.4 starter, DC Power 270 amp alt
Die Hard Platinum AGM all 2/0 Cables
7" lift w: Icon Progressive Coil Springs
2008 up Carli/Deaver rear springs
All riding on some Fatty-Daddy 38/15.50/18 Toyo's
mhatlen is offline  
post #6 of 17 Old 02-18-2013, 04:30 AM Thread Starter
Member
 
Join Date: Jun 2012
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by mhatlen View Post
I don't have a temp gauge on my truck so I can't give you a comparison. How does it feel in comparison to power before you installed the 5".
It may be flowing that much more and the heat is exiting the turbo faster?? It makes sense to me but how fast does it drop after you are out of the throttle?? More flow better fire more heat, key is how long is it at those temps and of coarse what is a typical exhaust temp with a 5" pipe.

Someone with exhaust temp gauge will hopefully chime in.
I guess your theory of more air flow would increase temp, but one of the claims of the turbo back exhaust system is they LOWER EGTs. So what could cause higher temps?

The high temps drop immediately after I remove my foot from the pedal.

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”
― Albert Einstein

2006 F250-Sinister coolant filter, Amsoil bypass oil filter, CTS Edge, 5" MBRP exhaust (off road), blue spring....
new2fossil is offline  
post #7 of 17 Old 02-18-2013, 06:37 AM
Fill it up again Dummy
 
mhatlen's Avatar
 
Join Date: Sep 2012
Location: Central Valley, Sierra Mountains, California
Posts: 2,312
Thanks: 38
Thanked 112 Times in 101 Posts
Mentioned: 6 Post(s)
Quoted: 191 Post(s)
Feedback Score: 0 reviews
That's why I asked what the difference at 65mph before and after install. That temp should be lower now, but WOT may be making more power now than before thus making more heat.......The sustained temps are critical.


2006 F250 LARIAT CCSB 4X4
ARP Studs, O-Ringed Heads
X4 PHP 65 HP Custom Tow Tune
Atlas40 Ficm Tune
CAT EC-1 Coolant, IPR Coolant filter
Fass-125 to a Adjustable Pressure Reg.
Turbo-back SS 4" pipe, Corsa Muffler -7" Tip
6.4 starter, DC Power 270 amp alt
Die Hard Platinum AGM all 2/0 Cables
7" lift w: Icon Progressive Coil Springs
2008 up Carli/Deaver rear springs
All riding on some Fatty-Daddy 38/15.50/18 Toyo's

Last edited by mhatlen; 02-18-2013 at 07:10 AM.
mhatlen is offline  
post #8 of 17 Old 02-18-2013, 06:54 AM
Compression Ignition Addict
 
Join Date: Jun 2011
Location: Colorado Springs
Posts: 418
Thanks: 1
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
If those temperatures are right, you are going to melt a piston. The pistons are aluminum/silicon not steel. Better figure it out. Sounds like drastic overfueling.

What does the EGT thermocouple read in the AM before you start up? What does the EGT read at idle after completely warmed up?

Have you tried returning to stock and see what the temperatures are there?

MikeB

2005 F-250 6.0L, crew cab, long bed 4x4
completed in 2011: STC update, new IPR, BPD EGR cooler, oil cooler rebuild, 6.4 banjo bolts, blue spring update, SCT X3, Insight CTS, 58V FICM, CCV Mod, DIY coolant filter (now gone), refinished turbo
2012: ARP headstuds, OEM gaskets, standpipes and dummy plugs
2015: XDP coolant filter
PSDMikeB is offline  
post #9 of 17 Old 02-18-2013, 01:24 PM Thread Starter
Member
 
Join Date: Jun 2012
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by PSDMikeB View Post
If those temperatures are right, you are going to melt a piston. The pistons are aluminum/silicon not steel. Better figure it out. Sounds like drastic overfueling.

What does the EGT thermocouple read in the AM before you start up? What does the EGT read at idle after completely warmed up?

Have you tried returning to stock and see what the temperatures are there?

MikeB
AM temps are very close to the actual temp outside. After warm up my EGTs at idle when in neutral are about 280 and with the truck in gear it increases slightly to about 320.

I will try the stock tune and get back with an update

“Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.”
― Albert Einstein

2006 F250-Sinister coolant filter, Amsoil bypass oil filter, CTS Edge, 5" MBRP exhaust (off road), blue spring....
new2fossil is offline  
post #10 of 17 Old 02-18-2013, 01:38 PM
Compression Ignition Addict
 
blue99stroker's Avatar
 
Join Date: Oct 2011
Location: Chico, California
Posts: 5,026
Thanks: 18
Thanked 213 Times in 204 Posts
Mentioned: 2 Post(s)
Quoted: 153 Post(s)
Feedback Score: 0 reviews
your egts should have gone down 200-300 degress, not up with larger exhaust.

im thinking you have an exhaust leak somewhere. is the downpipe hooked up correctly?

99.5 f250 7.3 4x4 258k
PHP Phoenix, S&B CAI, 4" TBE, Hpx, Stancor, RR Billet Wheel, AIH Delete, Autometer Gauges, Leveling kit, Transgo kit, Warn Hubs, Int'l Up-Pipes, RR IC Boots, Non-Ebpv Pedestal, High Flow Outlet, RR OCR, 08 Tow Mirrors.

Dad-2000 7.3 109k miles, Autometer Gauges, Superchips 1705, AIH Delete, 6637, 4" TBE, BD Billet Wheel, TruCool Max
blue99stroker is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome