Boost Question - 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 05-09-2007, 12:44 PM
Thats Mr. Oil Leak.....

 

Join Date: Oct 2006
Location: Cypress / Houston
Posts: 9,529
Thanks: 4
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to MrJohnWayne Send a message via MSN to MrJohnWayne Send a message via Yahoo to MrJohnWayne
Boost Question

Lets see if someone can shine some light on this for me.

2000 f350 7.3 PSD (mods in sig) 188K on the clock. I made a diy boost fooler with a simple pressure reg that internally bleeds downstream. It does work havn't seen a SES light since. Unplugged my waste gate, and even with the 6.0 IC I cannot get over 25 psi of boost. Have checked for leaks. I'm thinking maybe the turbo is giving out. Starting to surge alot when towing but only in OD.

Let me hear some opinions....

Thanks,
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 05-09-2007, 01:40 PM
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
25 doesnt sound bad... Might check your boost with a AE program... Might be a boost gauge issue or the line too.
Reply With Quote Quick reply to this message
  #3  
Old 05-09-2007, 01:41 PM
Almostdunfukinwidit


 

Join Date: Nov 2006
Location: Trempealeau, WI
Posts: 31,084
Thanks: 113
Thanked 98 Times in 90 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Dave
25 is decent for a chipped SD with the stock turbo
Reply With Quote Quick reply to this message
  #4  
Old 05-09-2007, 01:50 PM
Thats Mr. Oil Leak.....

 

Join Date: Oct 2006
Location: Cypress / Houston
Posts: 9,529
Thanks: 4
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to MrJohnWayne Send a message via MSN to MrJohnWayne Send a message via Yahoo to MrJohnWayne
Yeah I know it isnt bad but I could swear unless I didnt fully understand that i've seen people on stock turbos (no ww etc..) getting 30+ psi even though it's bad for it. Maybe i'm crazy.
Reply With Quote Quick reply to this message
  #5  
Old 05-09-2007, 01:53 PM
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
Some trucks do some dont... I could not get over 25-27 and still put down 326 hp before the turbo and injectors... With a DI chip. Now with injectors and such I see 38psi...

Got to remember that boost doesnt equal more power, just more heat. If your not smoking, EGT's are good, and the power is there I would bet your doing fine... I also changed the Boost gauge from a Autocrap to a Isspro and picked up about 3PSI...
Reply With Quote Quick reply to this message
  #6  
Old 05-09-2007, 01:55 PM
Almostdunfukinwidit


 

Join Date: Nov 2006
Location: Trempealeau, WI
Posts: 31,084
Thanks: 113
Thanked 98 Times in 90 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to Dave
Ive never seen over 26 psi out of mine and that was on the pedal real hard to pass a big rig
Reply With Quote Quick reply to this message
  #7  
Old 05-09-2007, 02:02 PM
PIPE HITTER
 

Join Date: Mar 2006
Location: Republic of Texas
Posts: 1,472
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
hey John, where is your boost gauge tapped? And the DIY boost fooler, is it in the MAP line?
Reply With Quote Quick reply to this message
  #8  
Old 05-09-2007, 02:05 PM
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 gcop View Post
hey John, where is your boost gauge tapped? And the DIY boost fooler, is it in the MAP line?

I have one at each location... both read about the same, with in a # or so...
Reply With Quote Quick reply to this message
  #9  
Old 05-09-2007, 02:40 PM
Thats Mr. Oil Leak.....

 

Join Date: Oct 2006
Location: Cypress / Houston
Posts: 9,529
Thanks: 4
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to MrJohnWayne Send a message via MSN to MrJohnWayne Send a message via Yahoo to MrJohnWayne
My egt's are ok. When I unplugged the wastegate i went from 23 psi to 25-26 and dropped the egt's at wot a little. Now I still hit 1300+ but not as fast.

Yes my fooler is in the map line with my boost gauge. And yes the tap for the gauge is before the regulator
Reply With Quote Quick reply to this message
  #10  
Old 05-09-2007, 05:17 PM
Is it even worth it???



 
Join Date: Aug 2006
Location: Lex KY
Posts: 9,093
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to ABOBB Send a message via Yahoo to ABOBB
Quote:
Originally Posted by CSIPSD View Post
Some trucks do some dont... I could not get over 25-27 and still put down 326 hp before the turbo and injectors... With a DI chip. Now with injectors and such I see 38psi...

Got to remember that boost doesnt equal more power, just more heat. If your not smoking, EGT's are good, and the power is there I would bet your doing fine... I also changed the Boost gauge from a Autocrap to a Isspro and picked up about 3PSI...
Actually.... more boost generally means more restriction. Whether or not it means more heat depends a lot on where in the turbo's map range you are.

John... I would expect the 6.0 IC to actually lower you boost, not raise it. That doesn not mean that performance will not increase. The IC swap gives you less restriction accross the cooler (which means less boost) and also cools the charge air better (which again potentially means less boost). The cooler air is denser, and shows a lower pressure, but most likely delivers just as much (if not more) oxygen as the warmer charge air at a higher pressure.
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:
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 04:53 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