In any case, I really wanted to know how it worked for him. Too bad folks got hot under the collar about it.
Poor Mans DPF Delete
Hotshot
Joined: Jul 2013
Posts: 14,241
Likes: 2,179
This is what I learned from my 6.4 days
yes and no
while you can play with back pressure to fool you computer that you have a dpf, it will only last the duration of the defualt regen.
on a 6.4 the default was 500 miles and I think it’s the same for a 6.7
so when it enters the default regen....it will regen forever...becuase with out a dpf, the computer will not sense the 1200 degrees needed to conclude the regen completed.
yes and no
while you can play with back pressure to fool you computer that you have a dpf, it will only last the duration of the defualt regen.
on a 6.4 the default was 500 miles and I think it’s the same for a 6.7
so when it enters the default regen....it will regen forever...becuase with out a dpf, the computer will not sense the 1200 degrees needed to conclude the regen completed.
Cargo Master
Joined: Jan 2001
Posts: 2,389
Likes: 23
From: Central Texas
This is what I learned from my 6.4 days
yes and no
while you can play with back pressure to fool you computer that you have a dpf, it will only last the duration of the defualt regen.
on a 6.4 the default was 500 miles and I think it’s the same for a 6.7
so when it enters the default regen....it will regen forever...becuase with out a dpf, the computer will not sense the 1200 degrees needed to conclude the regen completed.
yes and no
while you can play with back pressure to fool you computer that you have a dpf, it will only last the duration of the defualt regen.
on a 6.4 the default was 500 miles and I think it’s the same for a 6.7
so when it enters the default regen....it will regen forever...becuase with out a dpf, the computer will not sense the 1200 degrees needed to conclude the regen completed.
Lead Driver
Joined: Sep 2006
Posts: 5,664
Likes: 162
From: Cartersville, Ga
At the moment, there isn’t enough options in Forscan to get into the PCM deep enough to do emissions removal.
Posting Guru
Joined: Sep 2009
Posts: 1,739
Likes: 0
From: Virginia beach, VA
What if you made an exhaust cut-out before the DPF and left it open around town, but closed it when on the highway. That way soot would still build up in the DPF occasionally and you would have regen's here and there but also get the benefit of no DPF when the cutout was open.
I wanted to do this on my Duramax, but with the cat right off the turbo it wouldn't work
I wanted to do this on my Duramax, but with the cat right off the turbo it wouldn't work
Cargo Master
Joined: Jan 2001
Posts: 2,389
Likes: 23
From: Central Texas
What if you made an exhaust cut-out before the DPF and left it open around town, but closed it when on the highway. That way soot would still build up in the DPF occasionally and you would have regen's here and there but also get the benefit of no DPF when the cutout was open.
I wanted to do this on my Duramax, but with the cat right off the turbo it wouldn't work
I wanted to do this on my Duramax, but with the cat right off the turbo it wouldn't work
Senior User
Joined: Nov 2015
Posts: 451
Likes: 2
Try it and report back. The pipe from the turbo on my CCLB goes to the B pillar before any restriction.
Posting Guru
Joined: Sep 2009
Posts: 1,739
Likes: 0
From: Virginia beach, VA
I'm not sure that's the reason, its likely because its more efficient to have it closer to the engine where all the heat is.
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Cargo Master
Joined: Jan 2001
Posts: 2,389
Likes: 23
From: Central Texas
Laughing Gas
Joined: Jun 2018
Posts: 803
Likes: 103
The back pressure sensors could be fooled if the correct values were known. The EGT readings the computer would look for could be fooled if correct values were known. The problem is the regens that happen every 500 miles regardless of the back pressure readings. This would initiate fuel dump into the exhaust system. From there, who knows what would happen. Using forscan would not stop the auto regens every 500 miles fuel flooding the exhaust.
Just do it the right way. $1,300 + a 24 rack of beers or less for the straight pipe, tuner, & tune. And throw in a small HP increase tune for improved mileage and be happy the gov hand isn't up your **** any longer.
Just do it the right way. $1,300 + a 24 rack of beers or less for the straight pipe, tuner, & tune. And throw in a small HP increase tune for improved mileage and be happy the gov hand isn't up your **** any longer.
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Travis Counts
1999 - 2016 Super Duty
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Apr 13, 2018 04:03 PM