Charge Air Cooler - Diesel Forum -
6.7L Power Stroke Engine and Drivetrain Discussion of the 6.7L Power Stroke diesel engine and drivetrain in the 2011-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.7L Power Stroke engine.

LinkBack Thread Tools Display Modes
post #1 of 3 (permalink) Old 05-17-2010, 06:33 PM Thread Starter
Senior Member
Join Date: Jun 2004
Location: eastern Montana
Posts: 762
My Photos: (1)
Feedback Score: 0 reviews
Charge Air Cooler

In other threads the relationship between air density and air temp have been discussed. The colder the air the densor the air, thus more oxygen to burn more fuel producing more power. In the past the CAC resided out front with no way to control the cooling substance(air). This caused the temp of intake air(cooled substance) to vary widely as it was dependant on ambient air temp. In eastern Montana this could be from approximatly -50 to 115 deg. Intake air had to be monitored so the computer could adjust fuel input over a wide range of temps.

The 6.7 CAC uses controled temp coolant as the cooling substance. This temp is approximatly 113 deg. Intake air temp should now vary much less making it easier for emissions control. I have not decided if this is a better,worse or neutral setup for other reasons. Anybody else?

'06 F250 Crewcab King Ranch 4X4 auto Black 6.0 stolen 12/31/14
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
by clifford bledsoe.
'09 Cameo 5thwheel home while working
'02 Eddie Expedition
'91 F250 SuperCab 4X4 Stock IDI 2 tone brown E4OD
'96 IH 7.3 4700LP field mechanic
'84 Bronco II 2.8 4 speed 4X4
'50 F-1 V8 Flathead 4-speed non syncro(bought new)
'76 Honda 250 Multi Sport(enduro)
'76 F250 4x4 standard 360 Highboy
mont91 is offline  
Sponsored Links
post #2 of 3 (permalink) Old 05-17-2010, 07:02 PM
Senior Member
Join Date: Dec 2006
Location: GVRD, BC, Canada
Posts: 124
My Photos: (0)
Feedback Score: 0 reviews
Probably just fine. Anytime you compress air, regardless of ambient temp, it is going to get hot. So at the very least you want to bring it back down as close to ambient as possible.

In some cases, like turbine engines, higher inlet temps improve combustion...
NavyF350 is offline  
post #3 of 3 (permalink) Old 05-18-2010, 05:04 PM
Senior Member
NickBeek's Avatar
Join Date: Dec 2004
Location: South Carolina, USA
Posts: 339
My Photos: (0)
Feedback Score: 0 reviews
Funny you should mention this. I have a friend on another forum that monitored manifold air temps and did some mileage testing. He found his best results were at around 110 degrees F.

2006 2500 SLT Mineral Grey, 6 speed, 4x4, Thunder Road Package, MBRP Muffler + 6" dual Stacks, Fast Idle Enabled. Silencer Ring MIA, CFM+ intake horn, Smarty POD, SB Con OFe.

Traded:2004 F250CC FX4 XLT Long Bed Torque Shift, $5.00 AIC.
NickBeek is offline  
Sponsored Links

  Diesel Forum - > 2011 - 2016 Ford Super Duties > 6.7L Power Stroke Engine and Drivetrain

Quick Reply

Register Now

In order to be able to post messages on the 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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
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