exhaust. stay 3.5 or go bigger? - Ford Powerstroke Diesel Forum

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 22 Old 03-04-2013, 04:02 AM Thread Starter
Compression Ignition Addict
 
jdman49's Avatar
 
Join Date: May 2012
Location: Rockton Pa.
Posts: 296
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
exhaust. stay 3.5 or go bigger?

i am getting a 1997 OBS PSD already has an mbrp 3" dwn pipe to a 3.5" straight pipe. should i leave it alone or go 4' or even 5"? the 3.5 in alot louder than the 4" i had on my old obs and i think i want to bring the exhaust out the side instead of the rear. what do you think?

no truck anymore. maybe next year.

"duramax was built just to keep ford tow trucks in business"

2 most import things to keep with you, Condoms and a handgun, never know when you'll be out and need protection.
jdman49 is offline  
post #2 of 22 Old 03-04-2013, 04:53 AM
Delivers Pizzas For Fun!
 
ol_Blue97's Avatar
 
Join Date: Apr 2010
Location: cecil county MD
Posts: 6,024
Thanks: 1
Thanked 18 Times in 16 Posts
Mentioned: 2 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
4" isnt really NEEDED untill u get bigger sticks. Without a chip or injectors, u will be fine with the 3.5" straight piped. But the bigger the pipe the lower and meaner the sound. 5" sounds sick!

FRANK THE TANK
DIY INTAKE - HYDRA CHIP - MARTY'S E-FUEL - 250/200s
05 AXLE SWAP 3.73 - 2.5" PURE PERF. LIFT COILS - FOX SHOCKS
BTS TRANS - TYMAR DOWN PIPE - 4" EXHAUST
Waiting To Be Installed... gtx4294r, studs, springs, HPOP?
Quote:
Originally Posted by STROKED_NY_023 View Post
You are so smart Frank, I dont care what Terry says.
ol_Blue97 is offline  
post #3 of 22 Old 03-04-2013, 05:02 AM Thread Starter
Compression Ignition Addict
 
jdman49's Avatar
 
Join Date: May 2012
Location: Rockton Pa.
Posts: 296
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
i already have the DP-tuner i had in my old 7.3 put in this one it has 9 tunes up to 140hp and a beans diesel idm with the mod.

no truck anymore. maybe next year.

"duramax was built just to keep ford tow trucks in business"

2 most import things to keep with you, Condoms and a handgun, never know when you'll be out and need protection.
jdman49 is offline  
post #4 of 22 Old 03-04-2013, 05:34 AM
Delivers Pizzas For Fun!
 
ol_Blue97's Avatar
 
Join Date: Apr 2010
Location: cecil county MD
Posts: 6,024
Thanks: 1
Thanked 18 Times in 16 Posts
Mentioned: 2 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
4" may keep your egts down a little but no more performance from it...

FRANK THE TANK
DIY INTAKE - HYDRA CHIP - MARTY'S E-FUEL - 250/200s
05 AXLE SWAP 3.73 - 2.5" PURE PERF. LIFT COILS - FOX SHOCKS
BTS TRANS - TYMAR DOWN PIPE - 4" EXHAUST
Waiting To Be Installed... gtx4294r, studs, springs, HPOP?
Quote:
Originally Posted by STROKED_NY_023 View Post
You are so smart Frank, I dont care what Terry says.
ol_Blue97 is offline  
post #5 of 22 Old 03-04-2013, 06:51 AM Thread Starter
Compression Ignition Addict
 
jdman49's Avatar
 
Join Date: May 2012
Location: Rockton Pa.
Posts: 296
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by ol_Blue97 View Post
4" may keep your egts down a little but no more performance from it...
i really just want to get rid of the "ping"ing sound this 3.5" seems to carry it hurts my ears my 4" had a nice rumble just like it but without that "ping". i just wondered if 5" would sound even better.

no truck anymore. maybe next year.

"duramax was built just to keep ford tow trucks in business"

2 most import things to keep with you, Condoms and a handgun, never know when you'll be out and need protection.
jdman49 is offline  
post #6 of 22 Old 03-04-2013, 07:10 AM
Compression Ignition Addict
 
Join Date: Sep 2011
Location: Newellton, LA
Posts: 1,249
Thanks: 1
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 2 reviews
Re: exhaust. stay 3.5 or go bigger?

I personally prefer a 5" on any diesel. It never tries to ping/pop like a gasser with pipes. I really hate when a diesel sounds that way.

Sent from AutoGuide.com App

2012 F250 Lariat CCSB FX4, Gooseneck and 5th wheel prep package, H&S Minimaxx, 5" AFE SS straight pipe, EGR delete with factory EGT sensor, 35" Toyo MT's on stock rims, and Bilstein 5160 shocks.
thomaslord84 is offline  
post #7 of 22 Old 03-04-2013, 07:16 AM Thread Starter
Compression Ignition Addict
 
jdman49's Avatar
 
Join Date: May 2012
Location: Rockton Pa.
Posts: 296
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
sounds like 5" is the way to go. anyone know the cheapest pleace to get 5" tubing? i onnly need 10' if that to go from the down pipe to come out infront of the rear wheels maybe 5' would even do enough to come out at an angle behind the cab.

no truck anymore. maybe next year.

"duramax was built just to keep ford tow trucks in business"

2 most import things to keep with you, Condoms and a handgun, never know when you'll be out and need protection.
jdman49 is offline  
post #8 of 22 Old 03-04-2013, 07:34 AM
Delivers Pizzas For Fun!
 
ol_Blue97's Avatar
 
Join Date: Apr 2010
Location: cecil county MD
Posts: 6,024
Thanks: 1
Thanked 18 Times in 16 Posts
Mentioned: 2 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Local truck parts shop. Big rig parts shop....

FRANK THE TANK
DIY INTAKE - HYDRA CHIP - MARTY'S E-FUEL - 250/200s
05 AXLE SWAP 3.73 - 2.5" PURE PERF. LIFT COILS - FOX SHOCKS
BTS TRANS - TYMAR DOWN PIPE - 4" EXHAUST
Waiting To Be Installed... gtx4294r, studs, springs, HPOP?
Quote:
Originally Posted by STROKED_NY_023 View Post
You are so smart Frank, I dont care what Terry says.
ol_Blue97 is offline  
post #9 of 22 Old 03-04-2013, 07:39 AM Thread Starter
Compression Ignition Addict
 
jdman49's Avatar
 
Join Date: May 2012
Location: Rockton Pa.
Posts: 296
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
my local shops seem to be more expensive than many other peoples on here after seeing what they've paid for things like the 6637 air filters and so on but i'll call around thanks alot!

no truck anymore. maybe next year.

"duramax was built just to keep ford tow trucks in business"

2 most import things to keep with you, Condoms and a handgun, never know when you'll be out and need protection.
jdman49 is offline  
post #10 of 22 Old 03-04-2013, 08:56 AM
Powerstroke.org Rookie
 
Join Date: Mar 2013
Location: Orange Grove
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I run a 4" pipe no cats/muffler all the way to the back of the duals. The truck runs great and you can still hear the turbo. The "Funny" thing about a larger pipe - i get told all the time that the truck sounds like a gas (454-455 BB) until i pull to a stop.
strokedchevy 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