Community Forums

markmiiler · 06-07-2022, 03:30 PM

I have had issue with regen and spent some stupid money with freightliner to fix. I have found some one to delete system. Pro cons?

DTG173 · 06-07-2022, 03:42 PM

Well the cons would be that the government is outlawing everything to make diesels more efficient which includes deleting them. I know quite a few modification businesses that are being shut down [Mod Edit]

Wild Card · 06-07-2022, 08:12 PM

No cons.

Wild Card · 06-07-2022, 08:16 PM

Quote:

Originally Posted by DTG173

Well the cons would be that the government is outlawing everything to make diesels more efficient which includes deleting them. I know quite a few modification businesses that are being shut down due to the green-earthing "government".

Don't need a mod business, nor does it have to go to any business or shop.

geordi · 06-07-2022, 08:17 PM

If you are in a state (or it is registered in one) that doesn't do any form of inspections - rock on. There's no cons to doing that other than for the place that is doing it. Get it now while you can, b/c once they are discovered and raided by the EPA, they won't be doing it any more.

There's no real risk to you, they aren't interested in going after individuals (blood from a stone, etc) unless the individual is making a public show of themselves.

move on · 06-07-2022, 08:32 PM

Quote:

Originally Posted by geordi

If you are in a state (or it is registered in one) that doesn't do any form of inspections - rock on. There's no cons to doing that other than for the place that is doing it. Get it now while you can, b/c once they are discovered and raided by the EPA, they won't be doing it any more.

There's no real risk to you, they aren't interested in going after individuals (blood from a stone, etc) unless the individual is making a public show of themselves.

Your engine will run much better after deleting the emissions system, no doubt, but, as you say, it will not pass inspection. You have to be in a state like the Free Stste of Florida that has no inspections. BTW there is no air pollution in Florida so you don't have to feel bad that you're harming the environment.

Old-Biscuit · 06-07-2022, 08:33 PM

Don't have DEF so curious.........

Deleting the DEF, does that require deleting the DPF System also
Otherwise wouldn't it clog up?

move on · 06-07-2022, 08:50 PM

Quote:

Originally Posted by Old-Biscuit

Don't have DEF so curious.........

Deleting the DEF, does that require deleting the DPF System also
Otherwise wouldn't it clog up?

Yes. The DPF will clog up so you have to delete that, too. A system delete puts in a straight exhaust pipe with no DPF, no DEF and no catalytic converter. It also includes a software modification that eliminates the exhaust gas recirculation system which is really the most onerous engine killing festure of the emission system.

**Lt Dan** · 06-07-2022, 09:29 PM

Thread Reminder

Some posts have been edited or removed due to political comments. Please keep the politics out of the discussion.

Thanks to all posting within the rules.

geordi · 06-07-2022, 09:53 PM

Diesels have NO NEED of any form of an EGR system. That is complete hokum that has been forced onto diesels by CARB and their debunked "scientist" who was drummed out of his own peer group.

The problem is that a diesel is a lean-burn engine. It does not like to have an excess of fuel after the combustion event has happened, and running even close to rich allows extremely high cylinder temperatures which is what weakens the valves. The EGR is the problem, as reducing the air charge by re-introducing non-oxygen air back into the cylinder causes the fuel mix to be rich. This is precisely the OPPOSITE of what an EGR does on a gas engine.

There is a long scientific description about these combustion temperatures but what it relates to in the short version is the “delta“ from the intake temperature to the exhaust temperature. They call it a “cooler“ combustion temperature because the incoming hot air from the exhaust raises the intake temperature and the result is less temperature rise from combustion then would otherwise take place, that does not mean that the upper limit is not still pushed upwards. So if the normal temperature rise is 1100° from a 100° incoming air up to 1200, their idea of “cooler“ is 500° air rising to maybe 1400. The problem is that upper limit! The valves start to weaken with extended temperatures over 1200. After roughly 300B cycles or 200k miles, the valves reach a fatigue level and can fail without warning. Higher temperatures accelerate this process. Diesel engines do not like or need to run rich. That is the exact opposite of how they should operate. From an environmental standpoint, NOx production is not as important anymore because it requires sulfur to produce sulfuric acid and acid rain. With the sulfur having been completely removed from the fuel, this is no longer an issue. NOx breaks down in normal temperatures in just hours, into nitrogen and oxygen individuals, which of course are what makes up 80% of our atmosphere. In extreme cold such as -40° below zero or lower, the bond might maintain for a day or two at most. It is a weak bond molecule. So if there isn’t sufficient sulfur available to bond and cause sulfuric acid, it is just not a pollutant. The EPA has been focused on it for so long however, because it gives them something easy to keep targeting which results in their ultimate goal, overall reduction of engines and accelerated replacement in the marketplace. This is a stated goal from carb, who has infected the EPA with a desire to maintain their own bureaucracy. The science just doesn’t support that goal.

As a treatment system I am not specifically against the DEF, as that treats the exhaust AFTER it leaves the engine - allowing the engine to be tuned for maximum efficiency. However they STILL are utilizing both EGR (useless and damaging) and the DPF (massively wasting RAW FUEL into the exhaust) which are both BAD for diesel engine longevity and efficiency. Delete them all, and you won't even notice the difference at the tail - but what you WILL notice is the increased economy and power. Bad science leads to bad "fixes" that aren't needed.

Bruce Anthon · 06-08-2022, 12:26 AM

In your example of deleting everything, DPF, DEF and EGR, what happens to the soot that is captured by the DPF now?

wildmandmc · 06-08-2022, 02:17 AM

In the Titan XD Forum, many talk about the delete, some had some major issues after doing it. But it also voids the Warranty.

move on · 06-08-2022, 03:01 AM

Quote:

Originally Posted by Bruce Anthon

In your example of deleting everything, DPF, DEF and EGR, what happens to the soot that is captured by the DPF now?

It's the EGR that is creating most of the soot. Soot is unburned fuel. If you have enough oxygen at the intake most of it will be burned away. The recirculation of exhaust gasses with little oxygen in it is preventing complete combustion. Not only is this wasting a lot of fuel in the combustion chamber but you have to waste even more to clean out the DPF during the regeneration cycle. But poor fuel consumption is not the only problem. Soot particles are abrasive and they get into the crankcase where they ruin your oil and eventually your engine.

Soot has always been associated with diesel engines but it is no longer the environmental problem that it used to be years ago. We now have high pressure fuel injection that properly atomizes the fuel into tiny particles and allows complete combustion to take place. This has done more to clean up our cities than anything else. Still, there are a lot of older engines out there. The diesel fleet is, on average, 14 years old. When these old engines eventually die off they will be replaced by cleaner running engines and the environment will clean up even more.