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Catalytic converter options

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Old Jan 10, 2023 | 02:24 PM
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Catalytic converter options

It's been a while since I've been on here, my faithful E99 that I put so much blood and sweat into has been a solid work horse. One thing that has been a growing pain has been breathing the nastiness. I've been doing a lot of slow type work on my properties with a dump trailer and a lot of backing, stop and go, ect. I would like to clean the exhaust up on this truck. Anymore, I try to avoid cranking it unless it is a must. My lungs haven't been in the best shape since I got covid 2 years ago, so I'm looking for options - other than buying a newer gas job.

I see Magnaflow has a universal 60111 4" unit (I have a 4" exhaust), but how much will this actually clean the exhaust up?

Any ideas? Experiences?
Thanks
 
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Old Jan 10, 2023 | 05:12 PM
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Shouldn't Magnaflow have some data on that? I would assume since they are federally mandated that there would be some kind of criteria for any product marketed as a catalytic converter. I realize that any assumptions involving the federal government are likely a sad joke. All the same I would expect Magnaflow to at least do their own testing on products they bring to market.
 
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Old Jan 11, 2023 | 09:21 AM
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A catalytic converter will only slow down the flow of diesel particulate matter coming out of the tailpipe. What you really need is a newer truck that is equipped with a DPF. Even gassers emit minute particles of soot, down to PM1 size. The gas engines that are direct injected are the ones which emit most of the PM1, IIRC.
https://www.clarity.io/blog/air-qual...20respectively.
 
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Old Jan 11, 2023 | 09:54 AM
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A kitty does reduce exhaust smell, I had a 6.0 kitty on my OBS, you got that clean burn diesel smell, but you will also get higher EGT's, that's the reason I got rid of mine a few months back, as soon as I removed and drove the truck around the stench was strong and back to smelling like an old diesel truck.
 
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Old Jan 11, 2023 | 12:14 PM
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Kwikkorded, that's an interesting article, very sobering no doubt. I'm reminded of all the days of tinkering with engines, even breathing tons of wood smoke, and not caring. I think differently these days.

I had to fabricate an exhaust stack for my tractor, which solved that problem. It seems like manufacturers are against putting stacks on their equipment anymore.

This one will be a tough decision.
 
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Old Jan 11, 2023 | 03:34 PM
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IMO your tractor fix should be used on the truck



 
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Old Jan 11, 2023 | 04:34 PM
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10 characters
 
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Old Jan 11, 2023 | 05:37 PM
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This was a success, even on the little garden tractor it worked.

I can't deny, it has crossed my mind. The height of the stack would probably need to be several feet above the cab to keep exhaust from swirling around in the bed, potentially getting in through the rear window.

Function over form? Wonder how many will think it's all for looks.
 
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Old Jan 11, 2023 | 05:54 PM
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I wonder if some sort of propane burner you could turn on at idle that would generate enough heat to burn off that diesel exhaust as it travels to the tailpipe? I can't think of anything on the market that could be purchased, but if you found something, I know there's enough oxygen left over in the exhaust stream for something like that to make enough heat burn off anything you need to. Or just get a DPF truck and be done with it...
 
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Old Jan 11, 2023 | 08:35 PM
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Originally Posted by Kwikkordead
I wonder if some sort of propane burner you could turn on at idle that would generate enough heat to burn off that diesel exhaust as it travels to the tailpipe? I can't think of anything on the market that could be purchased, but if you found something, I know there's enough oxygen left over in the exhaust stream for something like that to make enough heat burn off anything you need to. Or just get a DPF truck and be done with it...
What about one of those ccv exhaust venturi's repurposed for a propane burner? I've got 0 experience on that type of setup, just an idea that came to mind. How hot are we talking here? Could some type of electric element get hot enough? Ooo, I got it HHO generator I think those torches hit somewhere north of 5000* F. You could probably even rig it up w/ an igniter and a couple timed relays to turn itself on and light the flame if in park longer than 20-30 seconds. Would probably want a flame sensor rigged in there to kill the machine if the torch doesn't light for safety. Could be a bad thing having unburned hydrogen and oxygen hanging out in the exhaust, or a funny story to tell the insurance adjuster.
 
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Old Jan 11, 2023 | 09:50 PM
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Yeah, something like the burner for an RV gas water heater element. Only bigger so the exhaust could flow through it without much restriction. Seems like an idea that's a bit off the beaten path. I don't know how well it would do in the job of burning up diesel particulate matter in practice. And it would use a lot of propane over time.
 
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Old Jan 12, 2023 | 02:30 AM
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Originally Posted by Kwikkordead
Yeah, something like the burner for an RV gas water heater element. Only bigger so the exhaust could flow through it without much restriction. Seems like an idea that's a bit off the beaten path. I don't know how well it would do in the job of burning up diesel particulate matter in practice. And it would use a lot of propane over time.
What about instead of burner in the exhaust tube, multiport injection from the outside?
 
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Old Jan 12, 2023 | 07:49 AM
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My truck never had one but I remember on my old eagle talon it definitely made a difference in how strong the exhaust odor was with the cat removed. I had to put it back in I remember once at registration renewal time so it would pass, so there was some differences I noticed. Quieted down the exhaust some and made it smell less, but costing some power of course.

Is the type of cat needed different for a diesel engine? They don't seem to say on the magnaflow site but it's an idea I might possibly be interested in. There will be some more parked idling in the truck's future and that can sometimes be an issue if the exhaust isn't blowing downwind.
 
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