TOO Much BOOST??? - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 6 Old 09-17-2009, 07:27 PM Thread Starter
Powerstroke.org Rookie
 
WhiteF350's Avatar
 
Join Date: Dec 2008
Location: Ringgold GA.
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
TOO Much BOOST???

Ok I have looked and read this site and others trying to find out. My questions, how much boost is too much. How far can I go before one of the heads come off? I have a 99 F350 4X4 auto, BHAF, 5'' turbo back, Diablo Sport Preadator and manual gauges. My boost gauge only regatures to 35lb. When I get on the pedal I peg the gauge at 35lb. So I'm not sure how far past that I'm getting. I have found a lot of discussion about boost pressure but not what is too much. My turbo and waste gate are stock to. Thanks for the help.

1999 F-350, CC, 4x4, LWB. E40D
5" Turbo Back Exh,
Diablo Sport Preadator,
DIY intake,
Un Pluged Wastegate,
All the Gauges of corse.
Front N Rear Peterbilt badges
WhiteF350 is offline  
post #2 of 6 Old 09-17-2009, 09:15 PM
Member
 
Join Date: Sep 2009
Posts: 39
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
your stock turbo and wastegate shouldnt be able to hit past 27-28 psi. is your gauge broken... i think its once you hit 40 psi you need new head studs but not sure. you would also need a new turbo to hit that 40 psi

4 inch Banks Exaust
Stage II AFE Intake
Banks Chip
Halo HID Projector Healights
LED Taillights
LED 3rd Brake Light
Pro-Comp 3 Pod Guage Pillar
Billet Grill
2" Leveling Kit
Rear Air Bags
Future Projects:
CCV Mod, Zoodad mod, Injectors, And DP Tuner
Bambam03stroker is offline  
post #3 of 6 Old 09-17-2009, 09:28 PM
Powerstroke.org Sponsor



 
Derek@VisionDiesel's Avatar
 
Join Date: Nov 2008
Location: *near* Portland, OR
Posts: 8,774
Thanks: 0
Thanked 6 Times in 4 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 2 reviews
Send a message via AIM to Derek@VisionDiesel Send a message via Yahoo to Derek@VisionDiesel
With custom tunes you would see those numbers plus some... But i think if you keep it around 35 you will be fine... how fast does it peg when you really get on it? You could have a faulty gauge (by the way boost gauges are the cheapest gauge out of the bunch so if you wanted one that went to like 50psi that might be the answer)

1996 f350- 615hp/1258tq uncorrected

2008 KR f350- leveled and tuned 569hp/1158tq

Cascade Coal Rollers!
Derek@VisionDiesel is offline  
post #4 of 6 Old 09-17-2009, 10:28 PM Thread Starter
Powerstroke.org Rookie
 
WhiteF350's Avatar
 
Join Date: Dec 2008
Location: Ringgold GA.
Posts: 11
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I don't think the gauge is broken. The gauges are from Autometer I bought them new in Dec. when I got the truck. It pegs the gauge extreamly quick when I get on it hard. I guess I need to look at a bigger gauge. I have been told that 42psi on a Cummins is the break point. My buddy has his Dodge programed to defuel at 40psi and it makes that number with a stock turbo. Is there a lot of difference in the turbos? I will try to get a pic or video of it pegged and post it up. Thanks.

1999 F-350, CC, 4x4, LWB. E40D
5" Turbo Back Exh,
Diablo Sport Preadator,
DIY intake,
Un Pluged Wastegate,
All the Gauges of corse.
Front N Rear Peterbilt badges
WhiteF350 is offline  
post #5 of 6 Old 09-17-2009, 10:40 PM
Powerstroke.org Sponsor



 
Derek@VisionDiesel's Avatar
 
Join Date: Nov 2008
Location: *near* Portland, OR
Posts: 8,774
Thanks: 0
Thanked 6 Times in 4 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 2 reviews
Send a message via AIM to Derek@VisionDiesel Send a message via Yahoo to Derek@VisionDiesel
Quote:
Originally Posted by WhiteF350 View Post
I don't think the gauge is broken. The gauges are from Autometer I bought them new in Dec. when I got the truck. It pegs the gauge extreamly quick when I get on it hard. I guess I need to look at a bigger gauge. I have been told that 42psi on a Cummins is the break point. My buddy has his Dodge programed to defuel at 40psi and it makes that number with a stock turbo. Is there a lot of difference in the turbos? I will try to get a pic or video of it pegged and post it up. Thanks.
A cummins engine will make much more boost much easier than a powerstroke... But with your stock injectors and stock turbo you shouldnt be seeing numbers near 40 at all...

1996 f350- 615hp/1258tq uncorrected

2008 KR f350- leveled and tuned 569hp/1158tq

Cascade Coal Rollers!
Derek@VisionDiesel is offline  
post #6 of 6 Old 09-18-2009, 01:41 PM
Lifetime Premium Member
 
jbeasts10's Avatar
 
Join Date: Apr 2008
Posts: 6,100
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by WhiteF350 View Post
Ok I have looked and read this site and others trying to find out. My questions, how much boost is too much. How far can I go before one of the heads come off? I have a 99 F350 4X4 auto, BHAF, 5'' turbo back, Diablo Sport Preadator and manual gauges. My boost gauge only regatures to 35lb. When I get on the pedal I peg the gauge at 35lb. So I'm not sure how far past that I'm getting. I have found a lot of discussion about boost pressure but not what is too much. My turbo and waste gate are stock to. Thanks for the help.
Your boost #s sound about right for your mods..about the same set-up as mine..I run the same programmer and depending on which tunes I have hit 36 to 38 in the past.I changed the files and dropped it back to 26 to 28Lbs boost.I have heard that 40 is about as high as you want to go without studs on these engines.
What revision are you running on the programmer?It will tell you when the programmer is booting up..IE..9R04


2001 F250.Custom Tuned,Ball-Buster Turbo,5"Exhaust
ITP Reg.Return,TD Billet Converter,Built Tranny,Snow Meth/Water Stage 2..plus a few more things!!She will Hunt
jbeasts10 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