😂

👍🏾 True!

Lol that's what i always say

I'll remember this 😅

🤣

These things are also investigated and tested prior to mass implementation with the intent for the systems to last a minimum threshold of time/usage, so don't be so negative. Yes things get clogged etc and performance affected in the long run but that applies to all components. It's just a matter of maintenance like everything in a ICE.

i believe your point , my Hyundai traject engine piston worn out so quickly after investigations we fount out that the erg valve causes the soot on the intake manifold which in turn escape to the cylinders and causes the rings to worn out

@@thenozar7603 Don't confuse negativity with factual reality. As the saying goes, the road to hell is paved with good intentions.

Thats why many do an EGR delete!

Yup. And those EGR parts wear fast and their EXPENSIVE. Also, ANYTHING diesel is Expensive. So it’s a double fist in the eye of your cock WHEN it fails.

You're absolutely right. As with most things 'green', it ends up making more pollution due to a shortened period of exploitation. There are entire service centers build around cleaning those systems, which is almost an annual maintenance item if you're primarily using your car for in-city driving.

Its the way of the future just ask the greens , they dont think of the bigger pictures they just look at the here n now just like all protesters, they all need to open their eyes and listen to all sides of stories as they may start seeing the real truths rather than what is being spoon fed to them by crooked politicians n so on , they need to stop being lemmings and start looking into things for themselves to make a real difference as currently they are making it so everything ends up in the rubbish tip as china doesnt want their rubbish back

I find it kinda retarded how we must fix the environment by using even more buy and throw away culture. I often feel they just make these systems so over complicated so people can't afford it. That being said, i actually don't think i ever changed a cat on any of my cars, i have a Citroen C4 Picasso now that need a dpf, but it have a service life at about 180000 km. But yes here in Denmark this is total bananas with taxes, i pay around 600£ or 6000 DKR, a year just to have a Saab 9-3 standing still!!

So you think fun is pumping carcinogenic gases into the air we all breath?? Next time you want fun simply piss in your own swimming pool but don't piss in mind. Your either selfish or stupid, maybe both, but your certainly selfish as you simply don't care Simply having any internal combustion engine in reality is polluting the air we breathe, that is why leaded petrol is banned.

@@Steven_Rowe lol. Is leaded petrol banned? I wasn't aware of an actual complete ban. Also EGR systems regularly fail requiring replacement of parts, which cause pollution to manufacture and also the risk of destroying the engine, since a failure mode can occur where coolant goes into the intake. The systems also cause engines to run less efficiently than they otherwise would, so overall more fuel is being burnt. So if you take into consideration the extra parts being manufactured, plus their common failures needing replacement, the lower fuel efficiency, if we include AdBlue, that adds weight and is another product requiring manufacture and transportation. Are these systems really reducing total emissions and less pollution in other forms?

@@Steven_Rowe you breathing also pollutes the air. You want to live? Things need to be transported and i still haven't heard how the expired batteries from electric vehicles are recycled or disposed of. Will that be an environmentally friendly process?

@@Steven_Rowe Everything causes pollution in some way. Lots of things involving burning fuel are fun for most people. You are using electricity to write comments and some sort of device. Is electronics manufacturing done without pollution? Hypocrite

@@chrisnoname2725 your point I take, but are you saying because something can fail then therefore let's not have it. Why don't we say bugger pollution, let's go shoot a loonie lefty. I look at this way we all polite whether we know it or not. Don't you think you and I have the right to breathe clean air? Were never going to live in the utopian perfect world but surely we need to at least strive too. I no longer live in the city, is the air perfect, probably not.

Agreed

That’s True

You’re not getting more power because half the gas in the chamber is inert. So basically you’re just compensating by advancing engine timing

NM

It’s basically used to lower the volumetric efficiency of a vehicle by filling cylinder volume with exhaust gas that has no clean burn able oxygen in it. Doesn’t make any sense to me. I’ve seen more problems with egr systems then benefits. It would be interesting to do back to back dyno testing on peak power output with and without egr as well as track fuel consumption with and without the system in some sort of controlled environment.

This depends on the percentage recirculation. Im currently studying this as part of my thermo course but there are optimizations to be made regarding power output and combustion temperature.

@@thenozar7603 If you reach some actual numbers. Aka the derivative of the heating function. Where input is % of exhaust gas and output is temperature. Or just plain numbers 5% -> 10 degree, 10% ->12 degrees etc. For me its important to understand the magnitude of the effect not actual exact numbers. Because if lets say current average recirculation percentage is about 30% and the thermal cooling effect is 2 degrees then I'd pretty much ignore the cooling effect overall and remove the EGR

Good luck with that if your car has an ECU.

It’ll significantly raise your engine temps

Yes ! if the EGR valve becomes clogged or damaged, it can cause an engine misfire. Cheapest way is to take it off and clean it with parts cleaner like brake cleaner carb cleaner etc. Often times you can do this without having to replace them.

Exactly it forces the vehicle to smell its own farts.

You just answered your own question.

they ARE DOING IT BECAUSE they are clogging up with carbon causing the vehicle owner to fork out thousands of pounds

"worth it"? Nah.

They never said it saved fuel.

@@chrisnoname2725 they said 1:01

@@SlavJerry Yes. My mistake. Thanks.

Yeah. Screw the enviroment

@@johnturner4400 settle down greta thunberg

which is dumb, EGR helps get to operating temperature faster reducing cold start wear, and there's no reason a cat should prevent you from making power. You can get an 800hp+ cat. Rally cars even have cats. You're just an ignorant car modder who can't grasp how to gain performance without compromising your own vehicle.

@@5PYZ3R Apparently not, my drive to work it takes the exact same amount of time to warm up. I can’t tell the difference. I have however noticed a mileage and small hp increase without my cats. They might have been kinda clogged but I’m sure as hell not buying new ones. StUck bare cheap pipes in their place:)

@@5PYZ3R Actually, I know a solid amount about performance having studied a lot of books involving airflow mechanics and such.

Nope , catch can is generally just receiving oil vapour caused by blow-by when positive crankcase pressure is present . Catch cans are usually an aftermarket alternative to feeding the oil vapour back into the inlet to be burned on combustion which has a tendancy to decrease performance slightly. By recirculating exhaust gas there's actually a better chance of reducing any hydrocarbons ( unburnt fuel and oil vapour) by reburning them . In theory the hydrocarbons that remain should mostly be eliminated by catalytic converters and DPFs and NOx gases should be greatly decreased.

Look into EVAP system on vehicle's

How will it be clogged up when the exhaust carbons are not fed back through the engine , its the exhaust carbons sticking to the oil vapours being drawn through via the pcv , these harsh carbons then also scratch the bore surface causing internal issue's, 500,000km on an rd28t and still running strong as day we bought it and still with clean oils when its time to change conpared to others always having engine trouble an oil is black as charcoal , I think greenies are killing the planet more with all the broken vehicle's than they think, same with sending manufacturing to china as now nothing lasts like it used to and is more expansive and ends up in rubbish tips , so you please believe what you want but I'll stick with what I know factually works n lasts, I also use less fuel with no egr than I did with 1 and also my egt is lower than with an egr funny that aye

What the heck are you talking about?!?! The only ones I've heard saying that "it burns unburned fuel" is people that have no idea how a internal combustion engine operates.

@@TarenGarond or they have no idea how the EGR system works.. but yes, idiots say that defending the system.

EGR’s are crap science, junk.

50k miles. Remove and spray with carb cleaner.

See same here kzfaq.info/get/bejne/odtjpNeSyZiWc5s.html

ถ้าเครื่องเจ็ตมี egr จริงไอเสียคงย้อนเข้าไอดีเครื่องระเบิดแล้วครับ

but actually tho, you’re basically feeding carbon from your exhaust gas back to your engine that can clog it up eventually, reducing O2 and increase intake temperature is good for emission but it will also affects your engine’s efficiency, and so fuel consumption

Engines can be rebuilt. What about the world our future generations have to live.

So true. They aren't effective enough to put on engines

@@tharakanuwan9986 Well, if you don't get the numbers down somehow, it won't matter what we do today. They will starve. Might as well contribute to death at this point to get those numbers down.

True and sad