4 Inch Exhaust improve MPG? - Ford Powerstroke Diesel Forum
6.0L Ford Excursion Discussion This forum is for topics relating to the excursion only.

 
LinkBack Thread Tools Display Modes
post #1 of 6 Old 07-24-2008, 04:14 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Jul 2008
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
4 Inch Exhaust improve MPG?

Have a 04 Excursion with 6.0 I have installed cold air filter and a superchip in the performance mode. I have been told to install a 4 inch exhaust from the turbo back. I am happy with the current performance, I would change exhaust if helps further my mpg. Also someone a Meineke Muffler said do not do from turbo it will effect the turbo spooling, what ever that means??? Another shop said they do mostly from turbo back. Has anyone installed 4 inch exhaust and what was the results.
Thank you,
Mustangkcode
mustangkcode is offline  
post #2 of 6 Old 07-24-2008, 04:34 PM
back to business




 
07OUTLAW's Avatar
 
Join Date: Oct 2007
Location: Not AK right now
Posts: 3,561
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Upgrading the exhaust will increase engine efficiency, which, in theory, will increase fuel mileage. Real world- you MIGHT see a 1mpg increase. It is still a highly recommended mod though (especially when you start using a programer)

And go turbo back, the only thing it'll do to the turbo is let it exhale a little easier.

Duane
2007 - F-250 Lariat OUTLAW
1983 - MERCEDES-BENZ 300D




07OUTLAW is offline  
post #3 of 6 Old 07-24-2008, 04:36 PM
Compression Ignition Addict
 
Peppy's Avatar
 
Join Date: Feb 2008
Location: Winnipeg
Posts: 386
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
i just put a 4" turbo back on and more power off the line faster turbo spooling and nice tone

04 f-350 sc lb
4"Silverline TB exhaust straight piped
tunes by Cale
Smoked tails
305/70/16 Grabber AT2
05 headlight conversion
Compustar 2way starter
Peppy is offline  
post #4 of 6 Old 07-24-2008, 07:01 PM
Banned
 
Join Date: Feb 2008
Location: Northampton,MA
Posts: 792
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via AIM to blizzardwarrior7
A programmer will give you most power when you do the exhaust and the intake as well. A turbo back system is the most common, and the best IMO. The only difference is some people report slightly less low end power VS the 3.5" Downpipe....I however didnt..
blizzardwarrior7 is offline  
post #5 of 6 Old 07-24-2008, 07:07 PM
Compression Ignition Addict
 
Patrick's Avatar
 
Join Date: Jan 2006
Location: Pittsburgh, Pa
Posts: 4,129
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
We sell them everyday. It will help with performance and economy, and it will help reduce your EGT's. Go turbo back for sure.

Legendary
Patrick is offline  
post #6 of 6 Old 07-24-2008, 08:09 PM
Compression Ignition Addict
 
6.0Sean's Avatar
 
Join Date: Dec 2006
Location: Bowling Green, OH
Posts: 813
Thanks: 0
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via AIM to 6.0Sean
I installed 4" turbo back to lower EGTs with the tuner, it spooled slower and lost low end torque at first (this was straight piped) I put a free flow muffler on it and it made a world of difference, spools fast lots torque, sounds great!

2004 F-250 6.0
SCT running Extreme Street from Innovative, 4" straight pipe 6" tip, ISSPRO Pyro and Boost guages, Zoodad, Omega remote start, sirius radio
6.0Sean 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