Why no 5 inch down pipe? - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-25-2011, 10:12 PM
Powerstroke.org Rookie
 

Join Date: Dec 2010
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Why no 5 inch down pipe?

So, why does nobody make a 5 inch downpipe? Is the Turbo outflow only 4inch? This must be the case, right??
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 02-25-2011, 11:11 PM
Member
 

Join Date: Mar 2008
Posts: 32
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I'm guessing there is a clearance issue between cab and engine.
Reply With Quote Quick reply to this message
  #3  
Old 02-26-2011, 01:06 AM
Powerstroke.org Sponsor



 

Join Date: Dec 2008
Location: Georgia
Posts: 8,611
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
5" won't fit!
Reply With Quote Quick reply to this message
  #4  
Old 02-26-2011, 04:08 AM
Member
 

Join Date: Feb 2010
Posts: 44
Thanks: 2
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The stock one even requires a significant indentation to fit.
Reply With Quote Quick reply to this message
  #5  
Old 02-26-2011, 11:48 AM
Powerstroke.org Rookie
 

Join Date: Dec 2010
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So, if I were to cut into the cab to make room, and re-plate a tunnel such that I will have enough room to fit a 5" DP, will this affect the current tuners available? In other words, if I were to place a 5inch downpipe will this have an untoward effect on individual tunes??

What is the diameter of the stock turbo outlet?
Reply With Quote Quick reply to this message
  #6  
Old 02-26-2011, 11:56 AM
Compression Ignition Addict
 

Join Date: Sep 2009
Location: harford co. md
Posts: 1,417
Thanks: 1
Thanked 0 Times in 0 Posts
Feedback Score: 2 reviews
Based on what i read 4" is plenty and anything bigger will yield no gains with a straight system so you may be looking at alot of work for nothing!
Chris
Reply With Quote Quick reply to this message
  #7  
Old 02-26-2011, 12:35 PM
Compression Ignition Addict
 

Join Date: Apr 2010
Posts: 325
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I can't see the reason for a 5" down pipe. Getting rid of the stock one is a great Idea. Its amazing these motors make any power with the stock one. The turbo is a 4" outlet I believe. Or really close to that. My truck is 5" from the down pipe back. I really don't see a need for more size than that.
Reply With Quote Quick reply to this message
  #8  
Old 02-26-2011, 04:41 PM
Powerstroke.org Rookie
 

Join Date: May 2009
Location: Fort McMurray
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Try it out. Post your results. I doubt it will make a difference but you never know. I haven't heard of anyone doing this either, fastest 6.4 runs a 4" DP thou.
Reply With Quote Quick reply to this message
  #9  
Old 02-26-2011, 04:45 PM
Powerstroke.org Sponsor



 

Join Date: Dec 2008
Location: Georgia
Posts: 8,611
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
5" won't work....it doesn't fit.
Reply With Quote Quick reply to this message
  #10  
Old 02-26-2011, 05:08 PM
Powerstroke.org Rookie
 

Join Date: May 2009
Location: Fort McMurray
Posts: 23
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
If you cut the firewall out you could make it fit but it wouldn't be worth it to me. I'm with Jeff. It doesn't fit
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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
Display Modes

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



All times are GMT -8. The time now is 04:52 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors