SHOULD YOU REMOVE YOUR DPF? How it affects power gains & fuel use - You won't believe the difference
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- Опубліковано 15 чер 2024
- We give you access to the experts to answer all the questions about DPFs you have.
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How do they work? Are they a problem? Do they reduce power? Should you remove them? We tell you all you need to know with the help of diesel experts Ultimate Diesel Tuning
#4wdaction #DPF #diesel 4WD 24/7 - Авто та транспорт
IT IS ILLEGAL TO REMOVE A DPF!!! The purpose of this test was to see the restrictions with the DPF and without the DPF. There’s been a lot of comments about why we didn’t re-tune the BT-50 after removing the DPF. The vehicle did not require to be retuned after the DPF was removed. The engine still recorded the same targeted turbo boost level and AFRs (air:fuel ratio) on the dyno with the DPF out as it did when we tuned it with the DPF in. So removing the DPF did not alter the tune, the targeted boost and AFRs were still correct. Removing the DPF made no difference in terms of restriction for power and torque production. Nothing on the BT-50 was changed other than removing the DPF and deleting the DPF off the computer (ECU).
This means that we are NOT restricted by the fact that a vehicle is running a DPF, with regards to how much boost and fuel we target during our custom dyno tuning procedure. If we wanted more boost, we can still do that with the DPF in place.
Also note that gains and results always vary from model to model; engine to engine; and are also dependent on how we tune the vehicle for the customer. For example, tuning for max power/torque is vastly different to tuning for towing, which is how this white BT-50 on this dyno, used for this test, was custom dyno tuned by us. If you want to know what kind of results we can get for your diesel vehicle - call us on 1800 034 373.
Whats the difference between a DPF system, and non DPF? DPF fitted vehicles save up the crap to blow it all out the exhaust all at once. And a non DPF just blows out the crap all the time at a lower level? Surely there is more to a DPF than that? otherwise... why bother we eventually end up with the same amount of pollution, do we not?
@@zaccarden6393 I gather it burns at a temperature significantly high enough to neutral out or cancel those carcinogenic particulates.
Its illegal in Australia but not everywhere.
@@jarrendickinson5279 What you are saying is , its like going for a blood test (the emission test) generic blood test and them not testing for biomarkers which would directly effect you, cancer bio markers etc.
has there ever been a mass spectrometer test on a DPF system during "burn off" to see exactly what is being expelled out of the exhaust.
@@lastknownlocation8760 so we just make it invisible to the eye and a specific test? Yep that will make a difference. Was just trying to simplify it for you Ok Gretta
Removing the DPF to gain power isn’t the only reason. It increases reliability. The regen process purposely increases EGT’s causing extreme wear and tear to seals and an increase in oil temps running through the turbo. The DPF is not the only thing that gives trouble. The EGR has been upgraded to allow more exhaust gas to get into an engine to cut down on NOX and reduce combustion chamber temps to help prevent excessive heat already produced by the higher EGT’s. the downside of this, soot also gets into the engine and oil causing premature deterioration to the oil. The soot is abrasive and when mixed with the oil acts like sand paper too all the moving parts inside of your engine causing premature bearing and piston ring failures. Even the best synthetic oil needs to be replaced much sooner than before the requirement of DPF’s and EGR’s.
Both the DPF and EGR need to be in proper working order to work without issue. If one system acts up, it causes issues for the other. Idling also clogs up both systems quickly. Wouldn’t want to be stuck in the middle of the woods when your engine throws a code that severely limits the power of your 4 wheeler.
These systems will be the death of diesel engines so better get used to the idea of gassers.
Well said. Most people are chasing reliability and simplicity. Stop making it sound like those wanting DPF / EGR delete are morons.
You can delete the egr and leave the dpf and all is good or maybe upgrade the dpf filter inside
Well, they are😂
Dpf in my 2011 duramax clogged. Was quoted $6k+ to replace. Luckily the guy at the shop saw that I was in a pinch so he offered to gut the dpf and tune it for $1600. It feels like a whole new truck and am flying under the radar here in CA
just make sure you don't tell anyone which shop, especially online.
So, the DPF was made a legal requirement to cut emissions but to keep the DPF clean you have to aimlessly drive for 20 mins at 60kmph to do a burn every so often. Hmmmm. What bright spark in Canberra came up with that idea?
E X A C T L Y ! ! !
Probably the same bright spark that wants to save the environment and not mandate that any changes ware necessary to all pre DPF models (fortunately for most of us).
What they should be doing is supporting the consumer more where DPFs fail and putting pressure on the manufacturers to design something that works a bit more flawlessly, without the aimless driving and with a decent lifespan.
I don’t have to take my oven or a 30-60 minute drive for it to clean itself
So you think a politician designed and developed the dpf system? Hmmm
Same bloke that says you cant have plastic straws because your KiLlING tHE EnViRoNmEnT whilst they fly around the world on privates jets daily. Lol people are seeing through this bullshit by now, surely.
When polical pressure groups ,govt and corporations get together..consumer gets screwed
Been saying this for years, idiocracy
you had no gains because your dfp was healthy in the first place and removing it would not make much difference. Now try it with a older car with 17500k on the clock.
True, in Africa, Kenya to be precise the first thing one does in a new truck is removing the DPF!
Yeah very true, I am in Kenya and I saw the mechanics remove the DPF of the car I was bought and delete the entry in the computer without any hesitation or consultation and since we don't have the DPF in supply, most mechanics look for the easiest option, to remove it.
@@samuelkimkung9532 Lucky boys it is legal there...
@@kelvinlilech7616 DPF just make cars unreliable and consume more fuel...
@@F.Krueger-cs4vk BS what? here in europe 60% of cars sold were diesels , DPF gave tons of problems.
Take a drink everytime Shauno uses a redundant acronym phrase.
"DPF filter" =
diesel particulate filter filter.
Pay for a tune with the ATM machine at the front counter.
Annoying isn’t it it.
@@pv3566 it'll be over $100 so you'll need your PIN number
😂😂 leave him alone, geeze
CG-Recommended oh very good
No brand will promote something illegal... I've seen the difference before and after. The power gains + fuel economy is unbelievable.
You don't have to be a that smart to see that dpf is a restrictive piece in the exhaust.
Fuel economy, yes; power & torque = no. Leaving the DPFs in gets awesome gains in power & torque as we have shown in this video.
8-10% more fuel economy
Rav 4 2.2 d4d 100 kw
It 100% depends on where the restriction is in the exhaust system plus where the dpf is located. I took the catalysers off one of my petrol cars and from the butt dyno I got at least 10hp
@@UltimateDieselTuning what if we add a hydrogen generator and burn cleaner air/fuel mixture. should one be concerned with the DPFs exploding in its "burn" stage? ... please test and post results.
Shauno: "how exactly does a dpf burnoff happen?"
Toyota: "it doesn't"
lol.. unless you press the button they install these days :) I guess its a show of how people are driving their vehicles these days. traffic and suburban school pickup and dropoff really isnt suitable
@@alex.caddell I have the button fitted and doesn't do anything...
@@morcosboci just like a toyota handbrake :)
The button is only functional if the dash light comes on meaning a blocked up filter. Otherwise you can tell its doing a routine burn by idle revs and sometimes the smell
My hilux spends at least 30% of its time above 80kph, usually towing a 2.5t caravan. DPF still fills up like a $2 hooker. Averages a burn every 300klm.
I can’t believe they just took the dpf out after a tune and added the straight through pipe and didn’t give it another tune without dpf.😭😂
I know right. Anything to fit their narrative
The engine still recorded the same boost & mixture on the dyno, with or without the DPF in place. It was removed after the tune, to show that even with increased flow from the extra boost & fuel (due to it being already tuned), it literally made no difference in terms of restriction for power & torque production. The engine is already tuned to our desired boost & fuel mixture. We are not restricted by the fact that it's running a DPF with regards to how much boost & fuel we target. If we wanted more boost, we can still do that with the DPF in place.
I get 150km out of my tank more towing a trailer every day and I got122hp at rear wheel previously having a tune and exhaust system.
Without dpf 155hp and saves me on fuel.
Seems like a lot more then the percentages you gave out.
@@jdriver100 it depends on how your car was tuned mate. We tune all of our customer's cars individually depending on what he/she uses the car for & how they want us to tune it. Also depends on what type of car you have too.
@@UltimateDieselTuning thats like replacing the turbo or the cooler and not tuning it, of course it will be very similar .. smoke and mirrors here
I've been living with a an early DPF system for 240000km, my tips for trouble free operation are..
Keep MAF and MAP sensors clean and replace when out of tolerance.
Make sure you don't have any boost leaks.
Get your intake manifold cleaned every 50000km.
Remaped diesels blow more smoke, more DPF lights.
A bit of freeway driving makes a world of difference.
Avoid dealer servicing, find a diesel mechanic.
If they blow more smoke then they are tuned badly. Black smoke means just dumping unburnt fuel into exhaust and higher EGTs.
I’m beginning to think Shauno is being coerced to say anything, for the almighty dollar. I hope l’m wrong.😊
Brian Walker if all Shauno has to do to 4wd drive in epic places and camp with mates is plug a tune place and say random stuff then wouldn’t you? I’d sell my soul for a lot less to do what he does as a day job 🤣 - every “job” has a downside....
Steve Williams . Yes, every job has a downside...if you accept it and no, l wouldn’t sell my soul. I have principles, which may l say, is sadly lacking with so many people these days. They say, as you have stated, would sell their soul , basically for the almighty dollar.
i would
You’re a fool if you believe A SINGLE THING you see on the internet
So your an expert in DPF removal.
10k fine for removing a filter?! What ya reckon they'd do if one were caught driving a retired firetruck with a 2 stroke Detroit? Asking for a friend
In nsw it’s like 10k fine but if u don’t tell them who done it u get 25k fine instead
Or my dad's house bus with a commer knocker in it 🤔
Realistically probably nothing, you didn't modify the emissions equipment that the vehicle came factory with. So unless they were to ban that era of vehicle or mandate that it pass modern emissions they couldn't fine you
Er yeah nothing. That’s the emissions system that the vehicle came with. Modifying it in any way that makes it _worse_ is the illegal bit. (Or might be, I’m not familiar with Australia’s legislation, but that’s how it works in EU and USA)
It does not apply to pre emissions vehicle’s
I love plants and plants love carbon.
People's lungs don't love soot
Daniel Matthiesen I breath carbon , with love.
Carbon? Dioxide? Mate the two and it’s a gas. Of course the stuff the DPF is trapping is soot, unburned fuel. Not sure what kinda tomato’s your gonna grow in soot
Perma Grin soot is ash and ash is yummy 😋. It’s un burnt ash. Ash is use as a binder and stabilizer. Ash is yummy and delicious for plants. The earth is greener than a hundred years ago , due to a very very small part to our carbon out put.
@@joevasquez1776 'the earth is greener than a hundred years ago' Where'd you pull that from? Are you saying that thanks to modern 'greener' technology we are less polluting than during the height of the industrial revaluation? or are you claiming that there isn't less forest and less grassland than a hundred years ago?
During a recent Hilux test drive I had.
Me: Hi Toyota dealer, is the DPF issue fixed?
Toyota dealer: Yeah mate, all fixed.
Me: So why does it have a manual burn off button?
Toyota dealer: Yeah mate, all fixed.
Me: So why the button?
Toyota dealer: Yeah mate, all fixed.
It's just a forced regen as it's hard to meet criteria for auto regen. Most manufacturers need to see requirements like must be over a certain temperature for a amount of time and maintain constant 100kmh for 1hr before regen will initiate. Not sure on exact toyota requirements but along these lines. Hard to meet these requirements for most town cars. Also Difficult for some highway cars.
A manual dpf burn button is actually a pretty good idea 🤷♂️
@@sams1550 yes. Yes it is. But just a bandaid instead of actually fixing the issue. The do block up rather quick many factors cause this
@@jarrendickinson5279 agreed, like you said some of the requirements would never be met by some people... if I owned a vehicle with a DPF I'd have to go out of my way to do a burn, so I'd definitely prefer a manual switch.
@@sams1550 Yeah but I mean other factors. As in overfueling boost to late. Poor injector choice also cheap. Air restrictions the list goes on.
Cheaper for them to add a button then recall and fix all properly
Don’t have EGR’s , don’t have a DPF , I’ll stay old school turbo diesel thanks 😊😎👍🍺
Only way to go here in UK, annual testing will fail anything missing, still got my '94, 3.1TD Trooper for that reason. Common rails are just trouble.
It's not old school if it's a 4 stroke.
@4The2nd Commonrail is an issue because it's direct injection, which can cause issues with dirty fuel. The injectors have a very finely tuned spray pattern that requires clean, homogeneous fuel of a closely-controlled viscosity. Same reason you don't try to run cooking oil in a direct injection engine.
@4The2nd I have 3 comon rail diesels in my yard. A peugeot, a Citroen and a Ford, 4 cyl TD, all are non start and no codes showing there is just so much crap hanging on these things to monitor the emissions they are a nightmare to solve. There isn't a garge in UK which welcomes any of these.
ME too ! Old school all the way !
“DPF’s have come a long way”... except if you have a Hilux
Nothing wrong with the dpf itself, its the burnoff that was faulty as it didn't do it quite right due to the software in the ecu which has been fixed.
@@illernpiller lol I'm sure no other car makers have had the same problem
@@illernpiller design appears to be the problem. Toyota are one of the only manufacturers with major issues, and a legal dispute
@@shaunblabla2306 yes, design with the burnoff so they had to tweak the ecu settings.
Says the ford fanboy.....
What u guys should do is leave the DPF filter and just remove whats inside of it so when the cop pulls u over and looks for it it is still there but the insides have been removed so they will never know
That's what I was thinking, but its not easy to open welded from all sides
@@eddyjawed4871 ok
I work in the dpf industry and It is a pretty good video. I can only see one variable issue would be having a low km 20000km vehicle vs something with 150k km+ power loss due to ash load (Not soot). Ash in a dpf will not have any flow capability. E.g. cell length is 150mm and the high km dpf has near 100mm of ash the unit is only able to use the 50mm left. More regular almost daily burns, more fuel use, not following the best practices and getting a good hour drive on highway once a fortnight and you will go into limp mode or have a light requiring a forced regen. This is not a fix but a band aid. Still having daily burns and the media starts to break down the coating that enables 6-700c temps. That first regen is a warning to get it professionaly cleaned, we have them come back to full cell depth flow. A oem dpf has a lot more precious metal wash that the cheap aftermarket available. That is what holds the cell up to the high temps. Skimp on quality and you will have problems a lot sooner and less km than the oem filter achieved
It's so nice that you guys have so many cool diesels in Australia. In the US, the EPA is so restrictive that we don't get as many diesels. No Toyota's at all here are diesels.
Also notice how they do a DPF back exhaust for performance gains but a cloggable filter doesn’t pose an issue
Exactly my point...thank you.
Try spending 3 days in low range in the mud computer says no
😂😂😂👍👍👍👍
Have you tried a dyno test on a DPF that has done 50K-100K? especially a town diesel, I’ve heard they can be really clogged up, especially if they are not constantly regenerating.
I've owned a 2016 Hilux since new and yes there was issues with the DPF when it was doing a burn, there was white smoke coming from the exhaust. Toyota recalled the vehicle and uploaded a new ECU firmware and its been prefect since. I've had it retuned and put on a 3 inch exhaust from the DFP back. There is three modes now, Factory standard power, Eco mode which gives 550nm which is great for just driving around town and on power mode she will give 634nm torque which awesome for towing the boat or camper.
Guys! Its like you read my mind. I have been researching this topic the whole week!
unfortunately if you do the DPF removal exactly the way you did you will get the results you have received. In the USA when most people remove their DPF system they also install a stage 1 tune to most of their diesel vehicles. Here stateside most people can expect to receive a minimum 50+75hp 75-100 tq gains from the removal of the DPF and a mild tune to compensate for the different flowing exhaust system now that the restriction has been removed. Whether you believe it or not having something stuck in your exhaust no matter the shape, size or design will cause restriction,it's just basic science. In a side note with a good tuner they should be able to set up a DPF deleted diesel to run quite a bit cleaner than a factory truck with factory DPF and factory tune.
you were doing the tests with a brand new car and DPF , i would like to see you do the same tests with a 7-8 year old truck.
Exactly what I was thinking. The DPF removed was clean so it had little restriction.
Wonder what the results would be once the car has put a few k’s on and the filter has had time to clog up. What about the EG temps and how that effects the turbo?
But if you were to retune it with the straight through exhaust the results would differ greatly.
ALL turbocharged vehicles benefit from less restriction within the exhaust system.
exactly this is a BS video we have a workshop and I remove alot of DPF from cars just on the drive you can feel the increase in power and my friends are in awe of their cars after I help them with this simple trick.
not only that ,what if the dpf was clogged up ..and not a brand new shinny one like the one they have .
Any engine works better with less restriction
well done with trying to convince the masses that DPF's are good, the black soot was not as harmful as the white ash that spews out the tailpipe from the burn off process, its all smoke and mirrors
What white ash? Toyota new DPFs are faulty so don't base your judgement off those.
Nice Pun there 👌🏼
Should have retuned it after removing DPF to be thorough
You got some sort of source for that claim mate? Pretty bold considering some of the best engineers in the world work on these systems
@@jarrendickinson5279 Yea, google is the source of all true knowledge. I'm sure there are also a couple of really good youtube videos on the subject. I mean, who needs the scientific method now that we have google and youtube where any hack can post any preposterous story they like and be sure to have a non-zero number of gullible people believe him. This has brought us such great things as the anti vaccine movement, the flat earth society, 9/11 truthers, chemtrails and Donald Trump, how couldn't that be massive progress??!!
I sexually identify as a 4.2 GU patrol so I'm sweet.
Yeah i got the 2015 3.0 GU y61 thank nissan for not putting a DPF on there, just lack of power instead LOL
So you’re the man to see when I need some boiling water for my coffee? 😜
@@grantdoughty9657 not from a 2015 patrol, they stopped the kettle motor in 06. Post 06 they grenade instead
@@datsunliam5514 yeah my engine is safer, but so bloody restricted it's a crime, 2 bloody cat converters with in 2 foot of each other, one HUGE restrictive muffler, plus a resonator at the end of the pump pipe, talk about major restricted system.
@@adamjones2025 change it?
I like how they specifically didnt tune the engine without dpd
Shakblak they’re defiantly trying to push keeping the dpf... if they tuned it without with more flow, the numbers would jump
Read the sticky comment at the top guys...
@@UltimateDieselTuning why u always lying , lying
@@ionutth4895 we're not mate. Absolutely no point in lying.
I got 305bhp out of my passat bitdi with a remap with dpf in, removed the dpf and remapped again and gained another 20bhp
My company had several mini buses that ran DPF's. They ran incredibly strong and fast. The only vehicles I have seen struggle with a DPF are ones with engines that are heavy smokers. Since that stuff is what the DPF catches, the motor is actually choking the exhaust system.
Most dont delete for power, they delete for longevity. Mainly with the egr. With the egr soot, which is abrasive, is reintroduced into the engine and burned. This erodes the pistons, rings and cylinder bore coatings and eventually gets past the rings into the oil where it erodes the internals of the engine. That's the main reason for deleting.
BS mate, if you regular service your engine will have no issues, so you'd prefer those carcinogens in your lungs?
Yes - there is a class action filed against Toyota for the DPF systems in 2015-2018 Hilux, Fortuner, and Prado models. Toyota has issued a recall to update the technology. It is our understanding from 2019 onwards the DPF systems in the new Toyotas have been fixed. This doesn’t seem to be an industry wide issue. We are seeing that as technology advances - the DPF systems are getting much more reliable. You legally cannot remove your DPF and police are now actively searching for this. Is it really worth a $10k gamble to remove it? In our opinion it's not.
4WD Action just look at electric please.
4WD Action both my 2017 & 2018 hilux’s have been recalled and are all good. Living in a remote area & the vehicles travelling long distances regularly has shown that there is no issue and more than likely won’t be any issues.
Has Ultimate Diesel Tuning verified continuing compliance with ADR 79 for every tune? Of course not and it's unlikely to comply with it's new calibration. Just leaving the emission control hardware in place does not guarantee ADR 79 compliance, just look at VW and NOx emissions and the effect of the engine control system calibration.
Why is Shaun's fave 4x4 a 80/60 an Grahams a gq shorty an a gu ute all with mechanical diesel engines......
4WD Action I have not experienced any issues with my 2018 Hilux
Take it out cut it open remove insides weld back together put back on vehicle
I've been scrolling down through the comments waiting to read just that, and finally someone had mentioned it. Gut them, don't remove them! Sheesh , it's not rocket science.
But in all honestly your cop bait if your driving a diesel powered car that is only 2 years old and blowing smoke!
Tune, gut and egr bypass has done wonders for my power, economy and future engine life!
@pete smyth nope I get my cars serviced at a service centre, I'm not a peasant. Plus our cars get inspected.
@@CHOPSZOOKER i like you thinking. mines is tuned, egr delete and now looking to Gut dpf
@@CHOPSZOOKER And we wonder why lung conditions are at an all time high 🙄
@@JohnSmith-kq1fu Naaaaah !! DPFs create nano particles that get into the bloodstream, proved many times by european studies.
It's just the fact that DPFs cost a fortune so a lot of people is involved.
Love the DPF filter going to pull some cash out at the ATM machine to do this mod
How am I to get the moot, if me car has no soot?
A lot of people bought them on fuel figures alone, the dealers made no effort in determining if a diesel suited the use case, meanwhile petrols were slowly removed due to low sales, and now that people have realised petrol may have suited their needs better, they're no longer available.
Beginning to think that DPF's were introduced to get sales of electric vehicles up
They were introduced to reduce carbon particulates that can cause lung problems. If they wanted to increase electric car sales, they would’ve banned diesels outright.
Its because euro emmision standards getting stricter every year. You gonna see petrol particular filters soon everywhere
TheLaw defender have it on there 2.0litre petrol
@@the_law isn't that gas/petrol runs clean enough to not have particles in the exhaust? and those do have cat.
@@MrSpeedy99 The soot causes acid rain and lots of lung cancer.
Thanks team....well done again !! Had a lot of trouble with the DPF on my VW Touareg...I just got rid of it !!
What year Touareg?
@@amirhossainzadeh3951 2013
Most people actually remove them for reliability fuel savings and engine life
It's not engine life, it's filter life. DPFs do clog up with ash eventually
@@JohnSmith-kq1fu Engine life also.
If you get oil test from cars with no DPF no EGR is much cleaner
Yeah but now. They realised that diesel particle are very unhealthy . Egr is the biggest shit ever invented , every car i had got the valve stuck open leaving my car driving at 50 kmh .
Mechanic : yeah we have to replace the egr ...
Me: cant we clean it like the manufacturer recomends it ?
Mechanic: yeah nah nah its an urban legend ... its gonna be 700 euro mate.
Me walking away to buy a can of breaks cleaner in the nearest tool shop : fkn scammer you wont get me coming here again...
Resuld 15 mins work , egr valve cleaned , back to work again and then caped off later on.
Car never had issues after removing the egr off the equation
People in the uk, just remove the filter inside then weld back the pipe it came in. All done
I knew somebody couldnt help but snitch 🤦🏾♂️
I agree
@@brucemiller5343 Don't worry, if you know then so does the authorities.
No mention of egt's which are much higher with dpfs 🤷🏼♂️
egr are cheaper
The high temp of DPF could lit the bush
if you mean causes spot fires they already do it drives national park rangers mad.
It is an issue in france down the south , you are not allowed to camp outside the expensive limited space camping or you will get fined .
It is pointless to have a 4x4 in france to be honest
You guys are awsome great vid love it.
So where are the emission tests for the burn off phase I wonder.
Soot results from incomplete combustion. The burn off phase burns the soot particles at high temperature, oxidising them - it essentially finishes the combustion process. The result of complete combustion is CO2 and H2O. Having an emissions test during the burn off phase wouldn't actually be any different from normal operation.
@@zeitgeist785 3 Conclusions
This study overviewed published data on particle number emissions during regeneration in
an attempt to assess the PMP methodology under these operating conditions. During
regeneration of the DPF a significant increase of
the emitted number of particles is observed.
Size spectra reveal a nucleation mode peaking at approximately 10 nm, at concentrations
that can exceed the emission levels under non-regenerating conditions by more than three
orders of magnitude. These nano-sized particles are found to be mostly volatile in nature with
their concentrations correlating with the sulphate content of the emitted particulate matter.
Particle number measurements following the PMP methodology are found to be little affected
by this burst of nucleation mode particles, partly because of the large cut-off size of the CPC
(23 nm) and partly because of the semi-volatile nature of the emitted nanoparticles, exhibiting
more than 97% overall removal efficiency. A high concentration of sub-23 nm particles
downstream of a PMP VPR system was observed in some cases which might be semi-
volatile particles that do not evaporate completely in the VPR or even an artefact resulting
from pyrolysis of volatile hydrocarbons insi
de the evaporating tube of the VPR. Even under
these conditions however, the PMP-PN results were not or moderately affected with the
measured concentrations being at least two orders of magnitude lower. In fact, the highest
recorded PMP-PN concentration during DPF
regeneration occurring
over the EUDC were
more two orders of magnitude lower than that recorded over the cold start ECE part and
therefore had insignificant affect on the particle number emission rate over the NEDC. The
latter was mostly affected by the fill status of the DPF, and was found to be at the same
levels with test cycles performed immediately after a regeneration event.
@@zeitgeist785 that's the theory behind it and it's what manufacturers need euro emission rules to belive. But it is not true
@@jarrendickinson5279 Thanks for the info there. Good to know when the theory doesn't match the practice. Got a link to the study? I can't see it in the comments unfortunately.
@@zeitgeist785 it's not something you will find in mainstream. They go to alot of effort to suppress the dirty side of emissions. Im a seasoned mechanic speaking from experience. Start with a Google search "dirty truth to dpf and emission numbers"
How do you own a 4x4 over there with all these restrictions
Mines an 06, what's a dpf?? Straight through life 😛
@@geoffmcmillan3304 i have a 98 LC75 3 inch dump straight from the Turbo sounds like a damn semi, i am never selling her one day i hope to have kids and they will learn to drive in it none of that auto pilot shit.
Love what you guys do.....could you do a video on tune vs power chip for diesels and the pros and cons. Cheers fellas keep up the awesome videos
Great video Shauno.
Very interesting info.
Pressure reading in the downpipe, AFR and EGT with and without DPF would be interesting.
do the same test with stock tune!
Great info, cheers Shauno
Love your 4wd trips lots of places I won’t to go now
Would have loved to see more on dpf back exhausts. Sound differences, performance, and wheres the 79 series in this video. Great video but nothing in it for me 😑
So tuners including yourselves have told me you should re tune after any mod to see the true gains..
Did you guys retune this car AFTER the dpf was deleted??
If not... bit hard to say it did not see gains.
Have you guys done much tuning with the cummins ISF 2.8? My 2014 model has never missed a beat but I'd love to know if the turbo lag can be tuned out and also if some more low down grunt can be had for towing.
Hello! Do you think though that there is power loss during the "burning process" of the dpf where some extra fuel is injected into the dpf?
@ultimate diesel tuning
Have you tested the emissions after your remapping?
Why wouldn't the manufacturers do it if its so simple? Because once remapped they no longer meet the emissions standards, even with a DPF still in place.
Hypothetical question. What if there was a dummy dpf with no internals ?? Asking for a friend. Lol
DPF not fuctioning is a guaranteed fail at annual testing in UK.
Low profile but you'll still get that turbo whistle which is a give away
Many have done this on the new nav and it works but dpf delete pipe gives a nice note 👍
was also thinking the same thing lol
Ahh you mean a high performance dpf 🤔👍
What would the fuel consumption difference be? How many grams of MAF air were detected before and after?
Hi UDT, can a DPF burn/clean be sustained/completed by high revs at a low speed? Can one be done in the paddock in low range, or do you really need to get out and drive over 60 odd for at least half an hour or so?
My old diesel had straight pipe with dpf and egr delete. Got more mpg and more power. Restricting the exhaust for the full life of the car is much worse for the environment burning extra fuel than a few extra particals floating around in the bush.
Better yet CO2 emissions have no effect on the environment or climate lol
@@mudzy9820 more c02 means more air for plants
@@LawrenceTimme exactly ahaha
Got my 2019 BT50 booked in for DPF removal and tune next week. Glad I have after seeing this
Keep your DPF in, there is no point in removing it!
Your .6% will make a difference tell mum your killing it
Byron Lecerf it’s not the power it’s the 2 L/100 km I’ll be saving. Which soon adds up.
Yeah mate got mine tuned and removed from my lux, best thing I did , I tow a trailer every day and get 150k out of a tank more . Plus the power is more then that just gotta take it to someone who knows how to tune it according to the removal. Can’t just take dpf out and replace with straight through pipe and not retune. Nufteys
@@jdriver100 The engine still recorded the same boost & mixture on the dyno, with or without the DPF in place. It was removed after the tune, to show that even with increased flow from the extra boost & fuel (due to it being already tuned), it literally made no difference in terms of restriction for power & torque production. The engine is already tuned to our desired boost & fuel mixture. We are not restricted by the fact that it's running a DPF with regards to how much boost & fuel we target. If we wanted more boost, we can still do that with the DPF in place.
Thanks, learned a lot again!
Hey Shauno, what is that pan and stove you always use on your trips?? seems like a good bit of kit, trying to find one for myself (sorry its not DPF related)
So you collect the soot just to blow it all out at once when it gets blocked?
The soot can't be blown out (it's trapped on the filter). To regenerate the filter the engine injects more diesel into the cylinders during the exhaust stroke. That causes the EGT to skyrocket, which in turn ignites the soot in the filter and makes it burn away (leaving behind some ash, mostly residual non combustible stuff that was in the engine oil).
Whats worse for the environment? No dpf or having to replace engines or dpf filters?
Interest to know thanks, Shaun.
Nice to see the BT50 on your chanel, love to see you can custom dyno tune with DPF, pity Ultimate Diesel Tuning is not in Adelaide..Great video this is the information I was looking for..Cheers Shauno
We have agents in Adelaide mate! Give us a call on 1800034373
@@UltimateDieselTuning Cheers, will do it tomorrow, hopefully still within the first 10 customers, 😉
Here in the US, us farmers, and our rural fire departments remove our DPF systems because they tend to start fires.
That and having to stop your firetruck on route for a forced Regen isnt exactly Ideal.
Wouldn't you have a heat sheild?
@@dpfparts293 That's totally incorrect, regeneration cycles don't require you to stop.
@@JohnSmith-kq1fu i drive a diesel school bus and you have to park it and put it in regime makes you set for around 30mins before itll drive no lie
here in Australia us farmers do the same one local farmer had the misfortune of a DPF causing a dust explosion in the engine bay damn engine was moved a good 15-20 meters. i have driven over wheat stubble ever since i could drive never set it on fire we hire a farm hand to help with harvest after the old man broke a leg the farm hand had a fancy new Ford fitted with DPF barley drove over the stubble and set our field on fire luckily it had already bean harvested and we where able to stop if from jumping to the field that hadn't bean done yet after that we did like the other farmers in the area and made out farm a NO DPF vehicle zone. we also are right next to the national park so we chat with the park rangers every now and then and they hate DPFs there causing more spot fires some cars get fully burnt so they dont bother removing them any more they get pushed to the side with all the SUVs that people bring to the park thinking there just as good as 4x4's.
I am in the USA and I have a diesel. It isn't a daily driver and is only used to pull my 15000+ lb camper so it is worked hard. I have had so many issues with the dpf. Dealer always tells me to work it harder. How much harder do I need to work it if 15000lbs isn't enough? Fortunately that damn dpf has fallen off somewhere and haven't had a issue since:).
Hi, nice video. I want my jeep grand cherokee diesel 2015 to be turned.
Would they do it ? Any idea of cost?
i removed the dpf from my 307 2.0 HDi and the difference was immense even before remapping it
Clear DPF vs no DPF will see no difference in power such as these cases in the video and If you are travelling highway most of the time then no worries, those that dont and you get your first DPF issue, just get it deleted, you dont want that on your mind constantly and a good DPF deleter will make it look like the DPF is still there and give you a good tune as well. Will pass emissions... Blocked DPF will not pass emissions!
Having my 1 gd hilux deleted soon,the white smoke at the traffic lights is embarassing not to mention the horrible fuel economy
Same ass mind bro gotta get rid of it soon
My 2013 BMW X5 35d has 145,000 miles on it and when I run a live tests my ash and soot levels are still low within the passing parameters. My buddy bought a new GMC Colorado diesel in 2018, he drives to work in a non traffic area on the highway, and he had to bring his truck in at 18,000 miles for a DPF replacement covered under warranty. 🤔
The dpf is meant to have cleaner exhaust. But if your car does a burn off is it not releasing those particles in the air anyway?
Totall Bull. How can they put this on with a straight face?
It's a valse test also. Dpd delete is less back pressure and lower egt. So they should've tuned is again. 10/15% more power after delete and retune is normal. These guys are idiots.
Money, Money, Money.
@@mike86mike you would swear these guys have never owned or heard of a 6.4 powerstroke. You could never say with a straight face that removing the dpf and doing a tune doesn't give you more hp and better gas mileage and tons of torque, than leaving it on with a tune.
@@cryingleftists2290 Every diesel gets better mileage without EGR and DPF
@@dimmacommunication thats what I said. Please re read my post. Thank you :)
That's a nice looking Mazda truck. That we don't get in the USA and I thought that the DPF was only for the US vehicles.
Australia is is also getting screwed over!😂
At how many kilometres would you replace the dpf and/or how to know when its time to replace it
Thanks for your videos. :)
With gaining 60% of power and torque you obviously will burn more fuel. That means that stock DPF will accept much more soot per km of run. What is the life expectancy of DPF with stock settings and how long will it last under new conditions (with tuning ) ?
Another good question is of course how long the engine of hilux will last after being put under 60% increased load ! :))
Transmission, Differentials, transfer case all over loaded.
Hey
I‘m from switzerland and I don‘t drive diesel. Many of my friends have diesel cars with displacement between 1.5 and 2.5 litre. None of these friends have ever had problems with the dpf. In switzerland we often drive very short distance (probably like the australians who live in the city).
One friend has a 2 litre BMW with over 330k (km) and original dpf.
From my perspective there is no problem (at least in switzerland) with dpf systems.
Would’ve been nice to see it turned without it not just running it the same!
Hey Brad there is no point... The engine still recorded the same boost & mixture on the dyno, with or without the DPF in place. It was removed after the tune, to show that even with increased flow from the extra boost & fuel (due to it being already tuned), it literally made no difference in terms of restriction for power & torque production. The engine is already tuned to our desired boost & fuel mixture. We are not restricted by the fact that it's running a DPF with regards to how much boost & fuel we target. If we wanted more boost, we can still do that with the DPF in place.
@@UltimateDieselTuning I am by no means as qualified at tuning as you are.......but you are saying lets add more fuel, more boost etc to an unquestionable restrictive exhaust system (DPF) & it will run fine ? And by fine I mean.......forget power on the dyno, I mean run fine towing 2 - 3 tonne (camper or caravan) up a hill & not have higher EGTs than a non DPF vehicle. EGTs will rise whilst towing......& of course going up a hill.
My point is, you can not seriously tell me that a DPF restriction in an exhaust system is neither here nor there.
I currently have a Ranger with a DPF & I also had a Ranger without a DPF.
With exactly the same 3" exhaust system on both, the current DPF Ranger has absolutely no exhaust note whatsoever, while the previous non DPF Ranger had a nice note to it. The flow of air that comes out of the exhaust on the current DPF equipped Ranger at idle is pathetic !
I would really appreciate a reply from Diesel Tuning as you guys obviously know how to tune vehicles, some of those power figures are really good.
Thanks in advance.
@@bretlukas Give our technical team a call on 1800034373 mate & they will answer all your questions to shed some light for you.
@@UltimateDieselTuning No point? Correct me if I'm wrong, but when you remove an exhaust restriction you free up flow which leads to allowing more boost, which means a need for more fuel, and a more dense mixture of the two resulting in more power. You can't tune with it, then remove it and expect anything crazy. That's like taking a normal car and slapping an intake on it saying it makes power. You have to tune for the changes or you won't see a result. It's cool that you can make a good increase with it in place but how much MORE can you get after removing it? For that you have to tune it again.
@@turbolag5107 no point mate. The engine was tuned to our targeted boost & AFRs with the DPF in. When the DPF was removed & we ran it on the dyno afterwards, they did not change. So, if we (for whatever reason) wanted to run more boost etc, we can do that anyway with the DPF in. But we don't want to, because the vehicle was tuned to suit what the owner uses it for. On that BT50, the DPF was not restrictive to power & torque gains, as per the video. Feel free to call our technical team on 1800034373 for further info. Cheers
Does anyone know what's the bullbar on the bt50? Looks mad!
Hey guys, great content. Thank you. Howdoes a tune affect your factory warranty?
Basically, if any part of your drivetrain - engine gearbox etc - ever stuff up, your new car warranty will no longer cover it....
Hmm interesting. I wonder if it would be worth replacing the exhaust between the turbo and the DPF? Most factory down pipes/cats aren’t exactly power productive.
Extractors, dump pipes and three inch exhausts....
Yeah, surprised no one ever thought of that.....
@4WD Action - Serious Question guy's; I've been told that if you change the tune on a brand new car/4WD, your insurance company can refuse a payout due to modifications and that any changes made may also affect dealer servicing and refusal of warranty and/or services that may have been included with the vehicle's sale.
And the same with changing parts from OEM fitted parts, to aftermarket or upgrade parts, Can you help me understand my concerns any better please?
I would hate to have an accident and have my new vehicle become a yard ornament, and still have to pay-off it's loan.
I have told my insurance company about all modifications to my vehicle including turbo back exhaust replacement larger intercooler and ECU remap I pay extra but they know about it
There's a get out clause whereby it will state your vehicle has to continually comply with all relevant legislation, which goes far beyond a roadworthy test. The onus is on you to prove that even though they may have been told about the modifications, so they can still wash their hands of you. All these people saying their 35s & 4" lift are insured because it's noted on the policy will be in for a big shock if the insurance company throw that clause at them following a crash.
It's up to you to talk to your insurance company about it as they are all different. As for new vehicle warranty - it's illegal for the manufacturer or dealership to void the warranty of a vehicle due to a custom dyno tune.
Open Minded Air Head 100% mate. Manufacturers will almost certainly refuse warranty on a vehicle that has aftermarket modifications, where the power and torque figures are more than standard. Especially drive train warranty issues. I've seen it.
Wait til your warranty runs out, then mod it.
@@gaj5701 as long as you pass roadworthy and have a mod plate if needed and your copy of the insurance papers have all mods on it they cant do anything to back out
When you remove the DPF, do you remove/disable the Adblue system as well?
The VW Amarok auto has a torque limiter in reverse. Can the your custom ECU tunning override this function?
Very surprising results great info, cheers Shauno
Shaun
Please. Not DPF FILTER
DIESEL PARTICULATE FILTER FILTER
Just DPF
Shauno with his tautologies, it's his show biz trademark
What do you mean thinks Shauno ........are you saying its not ATM machine also.
Bret KTM or VIN number
CTP party
Gone Bush
just like the ATM machine.
How would you guys go tuning a 2006 E53 X5 with the M57TUD30 motor? Problem is that there's no way to get the car to you, however I should be able to download the .bin files from the DME of the vehicle, and reflash when done.
Does a dpf back exhaust actually make any difference ? (Px2 Ranger)
I find it hard to believe that it doesn't flow any more.... But the internet's doesn't lie so 🤷♂️
Dynos Don't lie
Got 3 different trucks at work with DPF systems. All I'm going to say is, glad I don't pay for the work on them for DPF related issues.
@UltimateDieselTuning and @4WD24-7 - I’ve got a 2008 Nissan Navara STX Spain model which has recently just brought on a dpf issue quite randomly. (I had no idea a dpf was even a thing about a week ago). The light has come on and I drove on the highway to do a burn, I’ve also taken it to the shop to do a forced regen however it’s still very sluggish and the light is still on. So I’ve been told from one shop that I could do a remap on the ECU for a dpf delete for $1500 or I was told I could just put in a delete pipe for a couple of hundred dollars and it wouldn’t need the remap? Is this true? Also is there any other way around it, I know as professionals in your field that you would probably recommend neither and to buy a new dpf, but I simply don’t have the $3000 to $3500 that they have quoted. I’m a pensioner with no savings, which little car knowledge please help 😊
If you had to choose between two identical 79's apart from one with a DPF and one without, which would you have?
With DPF because cancer is shit.
Pity you didn't re tune it specifically for when the dpf is removed, gains would have been much bigger
When I parked my diesel car on grass, it would burn the grass underneath it in a rectangular patch. None if my petrol cars have ever done that. I'm amazed it never started a fire.
A heap of farms have burned down because of dpf's doing a burn in the paddock
@@LPB207 never set a field on fire in my life then we hired a farm hand and his fancy new car had a DPF we now have signs on all our gates saying "NO DPF equipped vehicles allowed". luckily the field was already harvested or it would have bean costly. they also cause a lot of spot fires in the national parks it drives the park ranges mad.
Found this really informative about dpf with power torque out puts. What about the underlining problem of dpf's increased fuel usage or is this just crap as well. Can you do a test on that aswell, with and with out dpf fuel usage over 1000km circuit?