No more DPF
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Joined: Apr 2004
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From: Ellensburg, Washington
Originally Posted by NS F250
I would get a tune that turns off the regen as soon as it comes out. Apparently the truck will regen after a set amount of time or miles (not sure which one). There is a guy on another site that gutted his dpf and after time it went in to regen even though the restriction was not there. I think he had to get a new dpf for like $2500 to get it to stop. Hopefully this is just internet bs, and you won't have any problems though. Aside from that, awesome. How bout a vid. 
Cowboy Steve
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From: Ellensburg, Washington
Originally Posted by SANDDEMON08
What did they do with the pressure sensor in front of the DPF? I've heard that it needs to read some degree of pressure to not trip codes or the regen cycle. I'v heard some people angle the pressure sensor towards the incoming flow of exhaust to trick it for stright pipe applications.
Cowboy Steve
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From: Ellensburg, Washington
Originally Posted by PSD6litre40
Gutted the DPF, LOL that was smart.......
Cowboy Steve
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Joined: Jan 2006
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From: Tucson, AZ
I got no problems with anybody doing what they want with their truck, but it sometimes makes me wonder. From what I have been able to find out the DPF really is not that restrictive and removing it (or gutting it) will yield little or no power or mpg gains. So basically the only reason to remove it is for smoke and noise.
Is that what you were looking for Cowboy or were you expecting performance gain (honest ?)? Not looking to get into any pissing contests.
Is that what you were looking for Cowboy or were you expecting performance gain (honest ?)? Not looking to get into any pissing contests.
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Joined: May 2007
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Originally Posted by kimminau2
I got no problems with anybody doing what they want with their truck, but it sometimes makes me wonder. From what I have been able to find out the DPF really is not that restrictive and removing it (or gutting it) will yield little or no power or mpg gains. So basically the only reason to remove it is for smoke and noise.
Is that what you were looking for Cowboy or were you expecting performance gain (honest ?)? Not looking to get into any pissing contests.
Is that what you were looking for Cowboy or were you expecting performance gain (honest ?)? Not looking to get into any pissing contests.
That probably won't be answered until the big performance companies start tearing into it. I want a strait pipe on mine but I'm not gonna do it until they come out from a national company, not from a guys garage or custom work from an exhaust shop.
Strait piping a diesel is just a personal preference. It's what makes the trucks we own ours, who wants a cookie cutter truck? Even if the DPF isn't that restrictive it still creates back pressure, can't deny that because that's how the thing works, 2 pressure sensors gotta measure something. So taking it off will reduce your back pressure, which naturally means higher performance. (Even if it is just at higher RPM's.) I'll admit, I want the smoke and the noise, that just what makes diesels unique. If you don't like it, keep it stock, and don't complain about second hand smoke.
My 2 cents.
Last edited by SouthTexasDiesel; Jul 11, 2007 at 10:20 PM.
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Joined: Jun 2007
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From: Henderson, NV
Originally Posted by kimminau2
I got no problems with anybody doing what they want with their truck, but it sometimes makes me wonder. From what I have been able to find out the DPF really is not that restrictive and removing it (or gutting it) will yield little or no power or mpg gains. So basically the only reason to remove it is for smoke and noise.
Is that what you were looking for Cowboy or were you expecting performance gain (honest ?)? Not looking to get into any pissing contests.
Is that what you were looking for Cowboy or were you expecting performance gain (honest ?)? Not looking to get into any pissing contests.
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Joined: Apr 2004
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From: Ellensburg, Washington
My truck is runnin great! To all those who think that the DPF isnt restrictive, do your homework again. Its the most restrictive of its kind. Bckpressure on turbo wheels reduces performance and spool up times. The turbinator is all the back pressure these motors need.
Im workin on gettin a custom made 5" turbo back system for the 6.4, Diamond eye is lookin into pricing for me. Cant wait! We'll keep ya posted on the DPF-less twin turbo packin pont hauler.
Cowboy Steve
Im workin on gettin a custom made 5" turbo back system for the 6.4, Diamond eye is lookin into pricing for me. Cant wait! We'll keep ya posted on the DPF-less twin turbo packin pont hauler.
Cowboy Steve
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From: Tucson, AZ
Originally Posted by SouthTexasDiesel
That probably won't be answered until the big performance companies start tearing into it. I want a strait pipe on mine but I'm not gonna do it until they come out from a national company, not from a guys garage or custom work from an exhaust shop.
Strait piping a diesel is just a personal preference. It's what makes the trucks we own ours, who wants a cookie cutter truck? Even if the DPF isn't that restrictive it still creates back pressure, can't deny that because that's how the thing works, 2 pressure sensors gotta measure something. So taking it off will reduce your back pressure, which naturally means higher performance. (Even if it is just at higher RPM's.) I'll admit, I want the smoke and the noise, that just what makes diesels unique. If you don't like it, keep it stock, and don't complain about second hand smoke.
My 2 cents.
Strait piping a diesel is just a personal preference. It's what makes the trucks we own ours, who wants a cookie cutter truck? Even if the DPF isn't that restrictive it still creates back pressure, can't deny that because that's how the thing works, 2 pressure sensors gotta measure something. So taking it off will reduce your back pressure, which naturally means higher performance. (Even if it is just at higher RPM's.) I'll admit, I want the smoke and the noise, that just what makes diesels unique. If you don't like it, keep it stock, and don't complain about second hand smoke.
My 2 cents.
I think the 1.5mph increase in the test was because it was actually in regen when they ran the test the first time.
I would truly like to see more information on this matter so if you have some links that discuss this please pass it on.
And I agree, do with your truck whatever you want, its yours make it how you like it because that is all that really matters.
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Joined: Nov 2006
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Originally Posted by kimminau2
From what I have been able to find out the DPF really is not that restrictive and removing it (or gutting it) will yield little or no power or mpg gains. So basically the only reason to remove it is for smoke and noise.
Before and after dyno runs showed that removing the dpf gained only 1RWHP on our stock untuned 6.4L.
