Question about exhausts... - Ford Powerstroke Diesel Forum
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 36 Old 02-10-2013, 03:30 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Jan 2010
Posts: 18
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Question about exhausts...

I have an 03 7.3, last of the 7.3's. I am looking at a 4" diamond eye system but wondering should I get the muffler or run straight pipe off the turbo all the way? I would suspect you would need some back pressure to make it run right but I deal mainly with m/c engines so figured I would ask the experts. Thx for the help.
DoubleHRanch is offline  
post #2 of 36 Old 02-10-2013, 04:02 PM
Powerstroke.org Sponsor
 
Justin@DP-Tuner's Avatar
 
Join Date: Nov 2012
Location: Oakdale, CA
Posts: 1,262
Thanks: 2
Thanked 44 Times in 43 Posts
Mentioned: 1 Post(s)
Quoted: 26 Post(s)
Feedback Score: 0 reviews
Either way is fine. If you want loud, then get the straight pipe.

On turbocharged engines, the less back pressure, the better.

DP-Tuner
For Your Tuning Needs
www.dp-tuner.com
Like us on Facebook!

Justin Bochmann
Sales and Technical Support
828-221-0076 ext.804
justin@dp-tuner.com
Justin@DP-Tuner is offline  
post #3 of 36 Old 02-10-2013, 04:41 PM
Compression Ignition Addict
 
Im_Strokin_ur_Cummins's Avatar
 
Join Date: Mar 2011
Location: Lowville, New York. Studying Mechanical Eng. @ Suny Canton
Posts: 609
Thanks: 8
Thanked 8 Times in 8 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
If you cut the muffler out of your stock pipe you will get the same effect a 4in does. 4in flows slightly more then the stock pipe but does sound nicer. With these engines no back pressure is needed, the more air you flow with a diesel the more effecint it is

FUELED BY HATERS
Jack'em up high.Fat chicks cant jump!

E99 7.3 F-250XLT



304,345 miles and still running strong
ext cab
DIY 6637 Intake
5in straight pipe to Aussie stacks
PHP 6pos
Boost,tran,and EGT Gauges
4in lift
Some body rust and oil leaks
CB radio
Pretty Girl sittin next to me
Im_Strokin_ur_Cummins is offline  
post #4 of 36 Old 02-10-2013, 05:01 PM
Compression Ignition Addict
 
zrain25's Avatar
 
Join Date: Jan 2011
Posts: 713
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Question about exhausts...

I got a 4 inch diamond eye with muffler. Great exhaust


Sent from AutoGuide.com App

Early 99 201,000 miles. Extra spring up front leveled, 4 in turbo back to 6 in tip, 6637, glow shift gauges, dp tuner, kicker speakers, alpine head unit and amp, kicker sub, extang tonneau, bedliner bumpers grill, flares, and rockers, 33in toyo mt, 18in xd monsters, 05 Harley lights, recon tails and line of fire, 20% tint

zrain25 is offline  
post #5 of 36 Old 02-10-2013, 05:08 PM
Member
 
hooperduty's Avatar
 
Join Date: Jun 2012
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
hey guys i realize this is an old post but im in the market for new exhaust, im looking at getting turbo back for sure but on the fence for whether 4" or 5" would be better, its mostly a daily driver for me but i do tow my boat in the summer. i plan on putting more mods in the future to make it a great all around daily driver/tow rig/good fuel economy.

any recommendations for brands and what size pipe would be better is appreciated. im thinking of going with a straight pipe 5" just to get better flow.
hooperduty is offline  
post #6 of 36 Old 02-10-2013, 06:08 PM
Compression Ignition Addict
 
Im_Strokin_ur_Cummins's Avatar
 
Join Date: Mar 2011
Location: Lowville, New York. Studying Mechanical Eng. @ Suny Canton
Posts: 609
Thanks: 8
Thanked 8 Times in 8 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by hooperduty View Post
hey guys i realize this is an old post but im in the market for new exhaust, im looking at getting turbo back for sure but on the fence for whether 4" or 5" would be better, its mostly a daily driver for me but i do tow my boat in the summer. i plan on putting more mods in the future to make it a great all around daily driver/tow rig/good fuel economy.

any recommendations for brands and what size pipe would be better is appreciated. im thinking of going with a straight pipe 5" just to get better flow.
Unless you are gonna be pushing high HP there is no need for the 5in it just has a deeper sound no actual gain over 4in on a DD set up. Though it does sound awsome when driving

FUELED BY HATERS
Jack'em up high.Fat chicks cant jump!

E99 7.3 F-250XLT



304,345 miles and still running strong
ext cab
DIY 6637 Intake
5in straight pipe to Aussie stacks
PHP 6pos
Boost,tran,and EGT Gauges
4in lift
Some body rust and oil leaks
CB radio
Pretty Girl sittin next to me
Im_Strokin_ur_Cummins is offline  
post #7 of 36 Old 02-10-2013, 06:44 PM
Powerstroke.org Rookie
 
Join Date: Feb 2013
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I have a straight pipe on my 7.3 with an Aem intake and it sounds great...

Rolling 7.3 Power
Critters diseals is offline  
post #8 of 36 Old 02-10-2013, 09:17 PM
Member
 
hooperduty's Avatar
 
Join Date: Jun 2012
Posts: 30
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I plan on upgrading its mods in the future with a chip and tuner...etc, I will eventually replace it with another DD so more HP is definately in its future since it will become just now tow rig and somewhat of a toy. I don't want my exhaust to be obnoxiously loud which is causing me to think the deeper 5" will sound better too.
hooperduty is offline  
post #9 of 36 Old 02-10-2013, 10:35 PM
Powerstroke.org Sponsor
 
Justin@DP-Tuner's Avatar
 
Join Date: Nov 2012
Location: Oakdale, CA
Posts: 1,262
Thanks: 2
Thanked 44 Times in 43 Posts
Mentioned: 1 Post(s)
Quoted: 26 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by hooperduty View Post
I plan on upgrading its mods in the future with a chip and tuner...etc, I will eventually replace it with another DD so more HP is definately in its future since it will become just now tow rig and somewhat of a toy. I don't want my exhaust to be obnoxiously loud which is causing me to think the deeper 5" will sound better too.
Your truck will be obnoxiously loud with a 5" exhaust. There really is no benefit to the 5" system other than sound(if you would even call that a benefit).

DP-Tuner
For Your Tuning Needs
www.dp-tuner.com
Like us on Facebook!

Justin Bochmann
Sales and Technical Support
828-221-0076 ext.804
justin@dp-tuner.com
Justin@DP-Tuner is offline  
post #10 of 36 Old 02-10-2013, 11:05 PM
Winning DUHHH


 
Young-SC-Owner's Avatar
 
Join Date: Sep 2010
Location: Sunrise Beach, MO
Posts: 2,389
Thanks: 0
Thanked 12 Times in 12 Posts
Mentioned: 0 Post(s)
Quoted: 8 Post(s)
Feedback Score: 0 reviews
Question about exhausts...

Honestly, not worth the cost.....secondly the kits come with a 4" down pipe to 5" back, it will only flow as good as the biggest pipe....not worth the extra 80. Bucks or so for the 5" dp back


Sent from AutoGuide.com App

99.5 F-350 SRW Short Bed, Ex Cab.
6637
Wicked Wheel'd,
Southbend
Autometer - Boost, Pyro
TW 6 Pos Chip
Water/Meth Inj
Diamond Eye 4" TB

7 year Veteran with SBFD
Airframe and Powerplant Mechanic
Head Marine Technician

Dont Tread on Me
Young-SC-Owner 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