3rd Gen Engine and Drivetrain -> 2007 and up 6.7 liter Engine and Drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

External Dpf insulation.

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Old Feb 1, 2008 | 10:15 AM
  #1  
acoustic_axe's Avatar
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From: Oklahoma
External Dpf insulation.

I've been considering insulateing the dpf with fiberglass and wrapping it with
the silver metal tape, since this Edit thing needs heat to burn off the crap it collects.

Thoughts from you all ?

Possible problems? ummm maybe a sensor would read excessive heat and derate the engine? But if insulateing kept the dpf at a higher temp it'd be cleaner and free'er flowing?

Doing this could burn up the dpf? Under warrenty, let DC replace it, I don't like to think that way, but hey.......

I bought the truck, trusting it'd be ready to run like it should, not to be part of their testing team, this bull of put it out the door, and we'll try to make it work later on the customers time and dime wasn't mentioned anywhere that I could see.

I've put 350 miles or so since the last trip to the dealer. (300 miles of it were in one trip) Now it's in another stinkin regeneration! I've drove extra miles that I sure didn't need to go, just so the truck reaches operating temp and runs at it for awhile.
Didn't help, it's been cold and snowing here, so low engine speeds and a cold dpf = rengeration. I put my hand on the tail pipe the other day, not even warm after running 10 minutes. (Was plugging a rear dual that picked up a bolt).
Pink Panther exhaust. I may give it a try, so give me your thoughts, i've found alot of good advice here. Thanks.
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Old Feb 1, 2008 | 12:14 PM
  #2  
RiddlerLS1's Avatar
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From: Rogers, Arkansas
ive been considering this as well. I would that that if the exhaust temps got to high during regen it would just shut the regen mode off. If we were able to keep it insulated enough to where it stayed close to the same temp as pre turbo EGT's then i would think it would keep it from doing active regens so much.

I cant think of any problems that this would cause, but im no genious.
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Old Feb 1, 2008 | 12:54 PM
  #3  
Monty's Avatar
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From: Mustang, OK
Insulating the piping running from the turbo to the inlet of the DOC would give you more benifit than the DPF. The DPF is already pretty well insulated as it is. You lose alot of heat when the exhaust is ran through the turbo. Pre and post readings can vary at times more than 350 degrees.

No need to worry about too high of temps. The DOC, and DPF both have temp sensors
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Old Feb 1, 2008 | 03:27 PM
  #4  
3 Dog Knight's Avatar
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From: Round Rock, TX
I wonder what the warranty repercussions would be if this were done.
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Old Feb 1, 2008 | 04:29 PM
  #5  
RiddlerLS1's Avatar
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From: Rogers, Arkansas
since cummins doesnt warranty our trucks you could probably email them or call some one there to find out if there would be any downsides to doing such a thing...
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