How much boost is too much boost for stock 6.4 w/the goodies??? - 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 08-15-2013, 12:54 PM
Compression Ignition Addict
 

Join Date: May 2013
Location: Yeah Right
Posts: 209
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
How much boost is too much boost for stock 6.4 w/the goodies???

I've de-fueled my Mini Maxx at 39 psi. It might be a little low but I don't tend to romp on it hard enough to exceed that in the short bursts I need the extra horsepower. However, after reading plenty of posts on wastegates and the fact that the stock wastegate dumps into the EGR system, how much boost will this engine handle before there is too much? Since the EGR is now disabled, I wonder if even running 39 psi is bad, even as stock I think I never really got over 35-37 psi.

What do I mean by too much? Well for one, head gasket issues. Also, the stock CAC boots, and general wear and tear.


Thanks!

Last edited by Expirobo; 08-15-2013 at 06:08 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 08-15-2013, 02:26 PM
Compression Ignition Addict
 

Join Date: Nov 2012
Posts: 249
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Your head gaskets will tell you. I've hit 55+ more then a few time and no puking yet.
Reply With Quote Quick reply to this message
  #3  
Old 08-15-2013, 06:07 PM
Compression Ignition Addict
 

Join Date: May 2013
Location: Yeah Right
Posts: 209
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Haha, but that is what I'm trying to avoid...the whole head gaskets telling me. I would prefer they never say a word!
Reply With Quote Quick reply to this message
  #4  
Old 08-15-2013, 06:08 PM
Compression Ignition Addict
 

Join Date: Sep 2010
Posts: 1,706
Thanks: 1
Thanked 16 Times in 16 Posts
Feedback Score: 0 reviews
Hard to say. I've seen guys running 60+ lbs on stock CAC boots. And there is no stock wastegate on a 6.4. You misinterpreted as people refer to the egr valve "acting" like a wastegate as the backpressure may push it open after a certain point. And just like the CAC boots, it is also hard to tell on how much your gaskets can take. Main thing is to make sure the truck is up to full temp before romping on it
Reply With Quote Quick reply to this message
  #5  
Old 08-15-2013, 06:11 PM
Compression Ignition Addict
 

Join Date: May 2013
Location: Yeah Right
Posts: 209
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I sure love this truck. It's treating me well and I'm taking good care of it. Haven't had it too long but it sure spins like a top. Once I deleted and tuned it, the rocket ship emerged. I read plenty of posts like, "Wow, can't believe how much more powerful it is". Well there's just no way to get the sense of how powerful these engines are until you drive it tuned.
Reply With Quote Quick reply to this message
  #6  
Old 08-16-2013, 04:41 AM
Compression Ignition Addict
 

Join Date: Jul 2010
Posts: 669
Thanks: 4
Thanked 10 Times in 10 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by Expirobo View Post
I sure love this truck. It's treating me well and I'm taking good care of it. Haven't had it too long but it sure spins like a top. Once I deleted and tuned it, the rocket ship emerged. I read plenty of posts like, "Wow, can't believe how much more powerful it is". Well there's just no way to get the sense of how powerful these engines are until you drive it tuned.
Agreed, the 6.4 is a caged animal and when it is out....look out As for too much boost, that is hard to say. You should be fine at 39psi. I used to hit mid-40's and never had a problem. Now I'm studded and I hit 55psi (I have a few goodies too, LOL). However, keep in mind, some people never have head gasket problems, while others blow them stock. You just never know.

Good Luck.
Reply With Quote Quick reply to this message
  #7  
Old 08-16-2013, 06:07 AM
Compression Ignition Addict
 

Join Date: Oct 2010
Posts: 4,187
Thanks: 14
Thanked 61 Times in 60 Posts
Feedback Score: 0 reviews
I have my defuel for boost set at 40 just to be safe.
Reply With Quote Quick reply to this message
  #8  
Old 08-16-2013, 06:42 AM
Compression Ignition Addict
 

Join Date: May 2013
Location: Yeah Right
Posts: 209
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Well, I'm a shade tree mechanic through and through. I intend to pull the heads and stud by myself at some point in the future. I know the drivers side rear stud is a pain but I think I can do it if I jack up the cab a bit. Anyhow, I'm absolutely pleased with the power and mileage now. The wife complained about dropping $2k on the delete setup...that is until she drove it. She had a $hit eatin' grin and hasn't said a word since!
Reply With Quote Quick reply to this message
  #9  
Old 08-18-2013, 08:24 AM
Powerstroke.org Rookie
 

Join Date: Jun 2013
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I was running the Spartan stock tune DPF delete towing my trailer and I hit 44psi.
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 07:14 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