Loss of torque with 4" exhaust? - Ford Powerstroke Diesel Forum
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 07-15-2007, 06:53 PM
JJR JJR is offline
Compression Ignition Addict
 

Join Date: Nov 2006
Location: Omaha
Posts: 304
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Loss of torque with 4" exhaust?

I just put 4" exhaust on my truck this spring and pull a 10,000lb 5ver. It seems like the truck has less torque than it did pulling last year with the stock exhaust. Is it me or has anyone else noticed this? The truck makes more boost than it did before but just doesn't seem to have the lugging power it did before. There are no codes and the truck runs great. Could the difference be the new ULSD fuel?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 07-16-2007, 07:54 AM
Compression Ignition Addict
 

Join Date: Jun 2007
Location: ottawa,ks
Posts: 192
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
well you will hate to hear this before i got the truck i do know i bought it with stright pipes and then put 3 in true duel with muffler and i could pull my dads skid loader alot better with that back pressure it was a 1998 chevrolet 454
Reply With Quote Quick reply to this message
  #3  
Old 07-16-2007, 07:58 AM
Powerstroke.org Sponsor

 

Join Date: Oct 2006
Location: Ventura County, CA
Posts: 20,361
Thanks: 23
Thanked 23 Times in 14 Posts
Feedback Score: 2 reviews
Send a message via AIM to Raul@Stealth Automotive
Quote:
Originally Posted by JJR View Post
I just put 4" exhaust on my truck this spring and pull a 10,000lb 5ver. It seems like the truck has less torque than it did pulling last year with the stock exhaust. Is it me or has anyone else noticed this? The truck makes more boost than it did before but just doesn't seem to have the lugging power it did before. There are no codes and the truck runs great. Could the difference be the new ULSD fuel?
what year is your truck?
Reply With Quote Quick reply to this message
  #4  
Old 07-16-2007, 08:44 AM
Let's Run'em


 
Join Date: May 2007
Location: El Paso, TX
Posts: 17,691
Thanks: 4
Thanked 14 Times in 13 Posts
Feedback Score: 2 reviews
Send a message via AIM to TwinTurboStroker
Quote:
Originally Posted by JJR View Post
I just put 4" exhaust on my truck this spring and pull a 10,000lb 5ver. It seems like the truck has less torque than it did pulling last year with the stock exhaust. Is it me or has anyone else noticed this? The truck makes more boost than it did before but just doesn't seem to have the lugging power it did before. There are no codes and the truck runs great. Could the difference be the new ULSD fuel?
The ULSD might be a small cause but I don't think it would be the main reason. It might be that you are now "use to" to the more power the truck has and it doesn't seem like it once did......if it was the exhaust I would think you would notice it right away, not later down the road, but just my 2 cents, here is a bump for you!
Reply With Quote Quick reply to this message
  #5  
Old 07-16-2007, 09:00 AM
Compression Ignition Addict
 

Join Date: Feb 2007
Location: Houston, Texas
Posts: 1,010
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to rednek01 Send a message via Yahoo to rednek01
Quote:
Originally Posted by TwinTurboStroker View Post
The ULSD might be a small cause but I don't think it would be the main reason. It might be that you are now "use to" to the more power the truck has and it doesn't seem like it once did......if it was the exhaust I would think you would notice it right away, not later down the road, but just my 2 cents, here is a bump for you!
I have to agree with TT I have had my truck for about 3 weeks now and all of a sudden I thought I felt a huge power loss but everybody who rides with me says it feels the same that I had just gotten used to the power (time to add more ) I was terrified something was wrong but nothing was wrong.
Reply With Quote Quick reply to this message
  #6  
Old 07-16-2007, 11:34 AM
Compression Ignition Addict
 

Join Date: Oct 2006
Location: Bend, Or
Posts: 6,089
Thanks: 29
Thanked 38 Times in 36 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by dieselpower99 View Post
well you will hate to hear this before i got the truck i do know i bought it with stright pipes and then put 3 in true duel with muffler and i could pull my dads skid loader alot better with that back pressure it was a 1998 chevrolet 454

Gas needs backpressure... Your turbo builds all the backpressure you need...
Reply With Quote Quick reply to this message
  #7  
Old 07-16-2007, 05:52 PM
JJR JJR is offline
Compression Ignition Addict
 

Join Date: Nov 2006
Location: Omaha
Posts: 304
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Truck is a 99 (Nov 98). 4" from turbo back with superchips 1705 and a intake system. Thanks for the input guys. Other comments welcome.
Reply With Quote Quick reply to this message
  #8  
Old 07-16-2007, 06:11 PM
International Threat
 

Join Date: May 2006
Location: Elkton, MD
Posts: 13,087
Thanks: 0
Thanked 6 Times in 4 Posts
Feedback Score: 1 reviews
I'd check all the regular stuff...

fuel filter, new intake, oil change, coolant change etc...
Reply With Quote Quick reply to this message
  #9  
Old 07-16-2007, 06:40 PM
Rob Rob is offline
Super Moderator


 

Join Date: Aug 2006
Location: Layton, Utah
Posts: 13,239
Thanks: 3
Thanked 6 Times in 3 Posts
Feedback Score: 0 reviews
Send a message via AIM to Rob Send a message via MSN to Rob Send a message via Skype™ to Rob
i noticed a huge difference when i changed out my fuel filters, just like brand new!!
Reply With Quote Quick reply to this message
  #10  
Old 07-16-2007, 07:21 PM
<<---"Shadow"---

 

Join Date: Aug 2006
Location: Georgetown, SC
Posts: 5,135
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Send a message via Yahoo to sea71
Put it back to stock and drive it for a few days or a week till you get used to that feeling again. Then put the chip or programmer back to work and start SMILIN again!!
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 10:26 PM.


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