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No interest at all in opinions on doing it or not. I've got a 17 with failing def system and almost constant frequent regen codes and would rather spend half the money to get rid of it than replace it. Any recent experience in getting hands on a kit? Canadian retailer or something like that? I can handle install.
I've heard it's getting down to local tuners that are willing to put in time and effort to make good tunes. Some good, some not so good, but that's what's left. It just isn't worth the risk anymore for people to openly sell commercially. Anyone that may know of a source isn't going to discuss it on an open forum like this. Good luck in your search and hopefully you find a good one out there.
I've heard it's getting down to local tuners that are willing to put in time and effort to make good tunes. Some good, some not so good, but that's what's left. It just isn't worth the risk anymore for people to openly sell commercially. Anyone that may know of a source isn't going to discuss it on an open forum like this. Good luck in your search and hopefully you find a good one out there.
that's what I've gathered. Seems like there are still places that will sell you stuff but nobody wants to say which retailers are legit or not. I would think there are still plenty of tune files that exist somewhere for the 17-19 it's just a matter of getting them.
Totally depends on where you live. Some places this is going to be a no-go. Others you can just walk into a diesel shop and they'll do it for you. Heck mine even used U.S. sourced tuning earlier this summer. So you're just going to have to check around your area and be smart about it when you walk in to talk to folks. Maybe hint around and see if they make the offer.
There's a place in Montreal that sells complete kits or individual parts (free shipping too).........what you do with it is up to you, legally. Any interest PM me and I'll send you the info.
Should have done this years ago. Crazy how much better these things are once they're freed up. Getting about 3.5mpg better mileage and much better performance about 1000 miles in.
I would disagree with that. An engine is basically an air pump. If you make it easier for the air to flow, you make it easier to get power. You could use a stock/no emissions tune and the truck would still run better just because it's not inhaling it's own poop and trying to force it out through a honeycomb grid.
Also, the OP's MPG improvement largely comes from the fact that he's not wasting fuel on regeneration anymore.
It's a win win win all the way around. The KISS principle. Which is precisely why the USAF trucks don't have any of that stuff on them.
I would disagree with that. An engine is basically an air pump. If you make it easier for the air to flow, you make it easier to get power. You could use a stock/no emissions tune and the truck would still run better just because it's not inhaling it's own poop and trying to force it out through a honeycomb grid.
That's applying gasoline engine logic to a diesel. Gasoline engines have extremely narrow air fuel mixtures where they work well, so you are very performance limited according to how much air you can move. Diesels aren't like that. Air is technically a limitation but you're blowing smoke like a 3 alarm fire before you need more air to make more power. Getting more power in a diesel is a simple as adding more fuel, and to some extent injection timing, but you'll never get more power by adding more air nor does adding air make it any easier to add more fuel. Cpobst is correct, the increase in power is from the increase in fuel from the tune. The reason we add airflow to a diesel is to keep temperatures in check.
Originally Posted by WXboy
Also, the OP's MPG improvement largely comes from the fact that he's not wasting fuel on regeneration anymore.
That's applying gasoline engine logic to a diesel. Gasoline engines have extremely narrow air fuel mixtures where they work well, so you are very performance limited according to how much air you can move. Diesels aren't like that. Air is technically a limitation but you're blowing smoke like a 3 alarm fire before you need more air to make more power. Getting more power in a diesel is a simple as adding more fuel, and to some extent injection timing, but you'll never get more power by adding more air nor does adding air make it any easier to add more fuel. Cpobst is correct, the increase in power is from the increase in fuel from the tune. The reason we add airflow to a diesel is to keep temperatures in check.
No argument there.
We can disagree on that too. This *may* have been true in limited fashion prior to 2003 when diesels used mechanical injection and had no emissions equipment at all on them. But today's diesels are using sophisticated electronic fuel injection at extreme pressures, and very specific volumes of air modulated by variable vane turbos, butterfly valves on the intake, manifold pressure sensors, etc. and are mapped precisely to make max power before smoking. Power delivery is 100% a game of airflow and fuel just like on a gasoline engine. Like I said, guys who run totally stock tuning with simply emissions off changes are still seeing more power and better MPG. Some, but not all, of that comes from losing the regen process. My personal truck didn't pick up as much as the OPs...I'm only seeing about 1.5 MPG gain. But anything is a plus, and my oil stays visually honey colored longer.
A few years ago I think it was 5-star (but I could be wrong) compared a deleted and emission intact truck both with factory power tunes and there was no difference in power. If I can find the video I will post it.
It's a win win win all the way around. The KISS principle. Which is precisely why the USAF trucks don't have any of that stuff on them.
what all the emissions law enthusiasts state side fail to realize or acknowledge is, even the .mil trucks that are sans DEF stuff, are probably still cleaner than 2 stroke leaf blowers, or the average taxi running in Kabul.
I remember a few years ago I was doing some work on aircraft MRO overseas, there were just literal trash heaps on fire all over the city that the facility I was working on across the chain link fence. That's when I realized no matter how much we conserve and try to reduce our carbon footprint, the rest of the world makes our effort at best, quixotic.