Cat/Muffler removed need help with performance - Diesel Forum - TheDieselStop.com
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Upgrades and Aftermarket - 6.0L Engine Upgrading or adding OEM or aftermarket equipment to your 2003-Up Super Duty or Excursion with 6.0L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 6.0L Power Stroke engine.

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Old 04-04-2012, 10:48 AM   #1 (permalink)
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Cat/Muffler removed need help with performance

Hello, I'm new to deisel owning and I have a 2004 Ford F350 Super Duty Crew Cab long bed with a 6.0 automatic. I just had the catalatic converter and factory muffler taken off in hope on getting better performance and fuel mileage. A friend was telling me that I should look into getting some kind of chip to help with power, gas mileage and performance, can anyone recommend a dependable one. Thanks Trent
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Old 04-04-2012, 11:16 AM   #2 (permalink)
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I have a 04 f250 with mbrp exhaust no cats cold air intake with a sct livewire programmer and love it I get about 18 to 20 mpg on interstate plus my with the livewire you can monitor a lot about your truck


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Old 04-04-2012, 11:25 AM   #3 (permalink)
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Check out my vid of my truck against a 6.7 powerstroke



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Old 04-05-2012, 09:12 AM   #4 (permalink)
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Thanks for the information and the video.
I was wondering of there is anything else I need to as way of modification the my stock 6.0 deisel besides the exhaust deters. I read somewhere about a EGR delete pipe or something like that. Is this something you need to do to increase fuel
Mileage and towing performance on these truck. I'm rather new the deisel truck thing so any suggestions and helpful tips would be greatly appreciated.
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Old 04-05-2012, 11:55 AM   #5 (permalink)
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All I have is exhaust intake and my sct livewire but from what I have read and heard is that some kind of rerouter that takes the unburnt fuel and puts it back in the system so instead of rolling coal you use that fuel can help get more miles out of a tank but I'm not sure what it's called. Also I have found that with my sct the performance tune gets better mileage the my economy tune does


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Old 04-05-2012, 02:36 PM   #6 (permalink)
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04strokin,you may be referring to the EGR system which is used to control Nox emissions. It reroutes exhaust back into the engine intake and definitely does not enhance engine performance. Removing it does. Check out the EGR Delete threads. Otherwise, once the fuel comes out of the injectors there is no way to put it back into the system. All that black smoke which so many guys think is cool really only does 2 things: It gives diesel pickups a bad rap with the general public (adding to the general support for further restrictions) and it increases engine wear.
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Old 04-05-2012, 03:21 PM   #7 (permalink)
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Never said it helped with performance but it reroute the unburnt fuel but maybe I misread sorry for giving false info


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Old 04-05-2012, 04:08 PM   #8 (permalink)
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1693 the airdog2 is what I was thinking about it cleans your fuel and only allows what the truck needs to be used and reroutes the rest back into the fuel tank so you want be wasting unburnt fuel by rolling coal

Check out the link below it explains better

http://www.rivercitydiesel.com/index...hk=1&Itemid=54


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Old 04-06-2012, 06:36 AM   #9 (permalink)
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1693 the airdog2 is what I was thinking about it cleans your fuel and only allows what the truck needs to be used and reroutes the rest back into the fuel tank so you want be wasting unburnt fuel by rolling coal

Check out the link below it explains better

AirDog II Fuel/Air Separation and Filter System 6.0L Ford


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Like many sales pitches that one takes a relatively minor occurance and magnifies the significance of it to make their point. First, you already have a delivery pump (lift pump, transfer pump, etc) which provides positive pressure to the engine pump. Second, return fuel, in the systems I work work with, is routed through either a bottom tank return, a standpipe, or is of such a low flow rate that any splashing that occurs is not going to produce noticable air. I believe Ford uses a standpipe. Third, this unit does nothing to regulate the injector pressures or delivery rates and will have no effect on "rolling coal". That's all a factor of of whatever tuning and modifying has been done. I'm not saying the unit is a bad thing. It probably gives superior filtration and would eliminate any possibility of air, but air in the fuel flow is a very minor issue and usually the product of a bad line or fitting. Your fuel tank probably rarely, if ever, sloshes as much as that demo showed, and fuel oil does not aerate as easily as shown. That in itself raises my suspicions about the demo. You have no way of knowing what the fluid is they are pumping.
Anytime you see a benchtest demo by the manufacturer of a product you can be assured that the test is being conducted in a manner that gives the very best picture of their product. Real world testing by independant testers usually gives a far different picture with much less impressive results. Could be a very well built product, but it pays to be skeptical.
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Old 04-06-2012, 07:10 AM   #10 (permalink)
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Completely true but he ask about mpg I had saw this a while back so was trying to help that's what forum are mostly about helping out


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Old 04-06-2012, 04:09 PM   #11 (permalink)
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Completely true but he ask about mpg I had saw this a while back so was trying to help that's what forum are mostly about helping out


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I wasn't trying to criticize you, if that's what you think. You seemed unsure of what you were describing and I gave you my explanation of what I thought you were refering to. As far as the device in the video, yes, I was being critical of that, but not of your interest in it. As far as I am concerned, what you put on your truck or recommend to others is your business.
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