Ford Truck Exhaust Tip design

[JSM]

Any ideas on why the 2009 Ford F250 Super Duty Exhaust Tips have those tabs like they do in the tips?

 

Taken from the article:

http://www.motortrend.com/roadtests/trucks/112_0906_2009_ford_f250_super_duty_tow_test/diesel_versus_gas.html

 

"Otherwise, living with a diesel has become remarkably simple. The engine fires up without pausing for glow plugs, and there's zero diesel smell and hardly any diesel noise. The 6.4 is designed to burn biodiesel fuel at mixtures up to B5 without voiding the warranty."

 

[JSM]

Found my own answer by accident. Curiuos if this would help at all with the exhaust smell in our Z's and it's impact on performance.

 

http://www.underhoodservice.com/Article/46503/servicing_solutions_15_tips_on_servicing_ford_f150s.aspx

 

Tip 13: These exhaust tips should not be removed or covered with dress sleeves that will seal off the ports on the sides. See Photo 3. As you can see, the new generation of diesel engines from all makes will have some odd-looking exhaust tips on them.

 

 

The tips are designed to draw cool air into the tip, by use of venturi action, to cool the exiting gases during filter regeneration. See Photo 4.

 

During filter regeneration mode, the exhaust temperatures are more intense than normal. Without the special tips, the exiting gases become hazardous to the paint on the truck’s body, dry grass that might catch fire or someone’s legs who happens to be standing too close to the tail pipe.

Edited February 18, 2011 by JSM

[ModernS30]

I was actually looking at that with the Chevy tip because of some things talked about in the 400HP N/A thread. I had some nut job idea on what they were for, but nothing near what it really is for!

[randy 77zt]

the diesels have a soot catcher-trap in the exhaust system.when it gets full diesel is injected into it and the soot-carbon particles are burned off.this is the regeneration cycle.exhaust temps can be 1000+ degrees.the engine ecm controls all this stuff