WOT lag at first - 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 08-07-2012, 09:21 AM
Member
 

Join Date: Jun 2011
Posts: 76
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
WOT lag at first

Can anyone tell me what would cause a 6.0 to bog down when you first stomp down on the fuel pedal. My 05 6.0 hesitates before taking off when I floor it at a dead stop and when crusing down the road. After a second or two it takes off like a rocket .
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 08-07-2012, 09:25 AM
The Silent Service

 

Join Date: Dec 2010
Posts: 5,210
Thanks: 0
Thanked 26 Times in 8 Posts
Feedback Score: 0 reviews
That's the standard lag of the stock turbo, it tends to spool better when you roll into the throttle vise dropping it to the floor. Has to do with the control of the vanes, from what I've gathered.
Reply With Quote Quick reply to this message
  #3  
Old 08-07-2012, 09:26 AM
Compression Ignition Addict
 

Join Date: Jan 2009
Location: se manitoba
Posts: 186
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Are you just smashing the go pedal or rolling into it?


Sent from my Autoguide iPhone app
Reply With Quote Quick reply to this message
  #4  
Old 08-07-2012, 09:28 AM
Let's Run'em


 
Join Date: May 2007
Location: El Paso, TX
Posts: 17,686
Thanks: 4
Thanked 14 Times in 13 Posts
Feedback Score: 2 reviews
Send a message via AIM to TwinTurboStroker
Quote:
Originally Posted by colo_dually View Post
That's the standard lag of the stock turbo, it tends to spool better when you roll into the throttle vise dropping it to the floor. Has to do with the control of the vanes, from what I've gathered.
Exactly......engine has to generate exhaust flow to spool to the turbo first
Reply With Quote Quick reply to this message
  #5  
Old 08-07-2012, 09:47 AM
Compression Ignition Addict
 

Join Date: Nov 2011
Location: Concord, NC
Posts: 1,035
Thanks: 0
Thanked 15 Times in 13 Posts
Feedback Score: 0 reviews
Welcome to the world of turbos
Reply With Quote Quick reply to this message
  #6  
Old 08-07-2012, 10:04 AM
Premium Member
 

Join Date: Oct 2010
Posts: 1,928
Thanks: 0
Thanked 16 Times in 14 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by towboat View Post
Can anyone tell me what would cause a 6.0 to bog down when you first stomp down on the fuel pedal. My 05 6.0 hesitates before taking off when I floor it at a dead stop and when crusing down the road. After a second or two it takes off like a rocket .
Normally the 6.0L is a little laggy due to the VGT portion just not reacting as fast as we would all like.

It might be that the vanes, unison ring or the VGT solenoid just arent working properly.
Reply With Quote Quick reply to this message
  #7  
Old 08-07-2012, 10:05 AM
Compression Ignition Addict
 

Join Date: Dec 2011
Location: Atlanta
Posts: 1,458
Thanks: 34
Thanked 75 Times in 57 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by towboat View Post
Can anyone tell me what would cause a 6.0 to bog down when you first stomp down on the fuel pedal. My 05 6.0 hesitates before taking off when I floor it at a dead stop and when crusing down the road. After a second or two it takes off like a rocket .
Your truck is broken. you should sell it to me for half of what you paid for it and buy a civic.
Reply With Quote Quick reply to this message
  #8  
Old 08-07-2012, 10:37 AM
Premium Member
 

Join Date: Nov 2008
Location: Cut And Shoot, Tx.
Posts: 213
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Yep...get used to it dude. These 6.0s need RPMs and boost to get anything done. Even with a powermax, if I put it to the floor from a stop, it takes what seems like forever for it to light up and go. And that whole time it's billowing so much black smoke you'd think it's a Cummins. I wish it had more low end grunt, but you just get used to it and adjust your driving habits accordingly. Heck I can't even chirp the tires when I put it in reverse and nail it real quick. Lots of smoke and whistling, but by the time the power hits, waaayyy to much speed for going in reverse...
Reply With Quote Quick reply to this message
  #9  
Old 08-07-2012, 01:07 PM
The Silent Service

 

Join Date: Dec 2010
Posts: 5,210
Thanks: 0
Thanked 26 Times in 8 Posts
Feedback Score: 0 reviews
If this is a cause of concern, that you want to do something about it, I recommend looking into FICM tuning.

A +40HP (PHPs - Altas40, or IDPs Moderate) or +80HP file (PHPs - Atlas80, or IDPs Exterme), would provide an improvement in low end fueling and torque, and get the stock turbo spun up sooner.
Reply With Quote Quick reply to this message
  #10  
Old 08-07-2012, 03:48 PM
Member
 

Join Date: Jul 2012
Location: Covington, Louisiana
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Mine responds the same. It takes a min to get upand go. Seems to be a whole new animal when you steadily roll on the throttle though..
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 07:21 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