You deliver excellent content to your audience. It's very interesting material. All of your effort put into creating this video is much appreciated. I'm truly grateful for your help!
Thanks for the video. A lot of people in the comments are judging your description, but I don't know why. I don't peruse TH-cam for videos to dislike. Thanks again for the good visual and explanation!
A lot of the generic cat converters do not have a directional arrow on the unit itself, so when you have a converter with no arrow, how do you know what is the inlet and outlet. mine has a oxygen sensor fitting but has a plug because the sensor is upstream (on the exhaust manifold itself). It's an OBD 1 cat converter and would like to know if there is a direction or not. Both inlet and outlet are 2" openings.
Great video mate. And what are the belts surrounding the ceramic cores, they look like some kind of insulation/anti-vibration part for centering the ceramic cores. What are those belts made of? Are they ceramic too? Thank you.
Old question, but in case someone else wants to know. I work in exhaust systems, the mat is usually fiberglass or similar heat resistant "cloth" like material and sometimes include silver flakes for special fueled cars, and it´s only function is to hold the ceramic in place so it doesn´t get damaged by movement, It´s hella brittle, some of the newer cats especially E5+ also have the mat as a sort of heat shield. But 90% of it´s function is just to hold the crap in place.
Does it *only* work when the temperature is high like for car exhausts? Currently working on a dry type type composter DIY project - one that heats & dries kitchen waste & was thinking of re-purposing one within the recirculating hot air path to remove odor etc
When you have dual exhaust on an old Chevy big block with pipes 3 inches in dia. and an 850cfm holley carb getting about 8 mpg, it would need 2 cats for each bank? There's so much raw fuel coming out to make anyone's knees buckle. It may well burn through the cat converters on yearly basis with casual driving. A set I've found runs about $400-500. Would they even last very long?
Donu Duty why would a vehicle have a big carb like that on there in the first place? That big of a carb would throw raw fuel out of it instead of burning it. It makes no sense to me unless the homework has been done by matching the cam, the converter and the rear end for a particular application all that is accomplished is a bunch of noise and a carb that dumps raw gas out the end and poorer performance. I guess it looks and sounds cool
Good explanation, but your closing statements are incorrect, the fact of the matter is, those plates which the exhaust gets pushed through are going to create resistance of flow whether it be minuscule or a lot. So therefore creating some back pressure, so the engine isn't going to be running as efficient as it would without one. So yea it will create some loss of horsepower because you are restricting the flow of exhaust gases..... And that is why a basic way to create more horsepower is to take your catalytic converter off (which is illegal for road worthy vehicles because of emission standards). And that is why everyone says it robs your car of horsepower.
j0n0j0n0j yes you are correct but this may be very minuscule power or in some cars it actually gives you more low end to mid end power where you will be mainly driving at in the road.
j0n0j0n0j although you are correct. you are forgetting one key fact. the engine is designed to operate most efficiently at that pressure differential. So you might gain a minuscule amount of horsepower, but you will also loose fuel millage in a manner similar to running on a lean fuel mixture.
If you look at the cross section of the honeycomb it is much much larger than the exhaust tube so the restriction is reduced. In the end your muffler is much more restrictive than a modern converter.
Sir i am making a bike silencer which will Reduce carbon di oxide emissions from silencer can you tell which filter or what should i use in it to reduce carbon emissions. Please reply as soon as possible...
Yes. Remember that the second substrate essentially mixes oxygen and left over hydrocarbons and burns them inside the converter. The converter's inlet temperature can run at 350F while the outlet part of the converter can run at 600 to 700F. And that's only when the engine management system is working correctly and the hydrocarbon levels coming from the engine are correct and low. If you have a misfiring plug or a bad coil or a bad plug wire and you are throwing raw unburned fuel into the converter continuously that is what will overheat and melt the honeycomb structure. Under those conditions the temperatures inside the converter can soar to over 2,500F. Do that for very long and you can kiss the cat goodbye.
OK, so I had a Jeep, where the tube from the cat fed into the air cleaner. All was OK, except that the cat produced water. On a cold day, the water would freeze, and the ice would clog the engine. I had to disconnect the tube coming out of the converter during the winter, other wise the engine would die when it was below freezing.
Please send all the videos how to clean the polluting air to the NGT and what is the solution of pollution. It is no justice to remove the old vehicles must check for fitness if any vehicle polluting give him time to recalibrate the engine so that the environment is pollution free. Thanks
That is not duct tape wrapped around the substrates. Those are insulators. They keep the heat generated in the substrates from passing into the outside steel shell of the converter.
Maybe the converters were partially plugged. The substrates might have been partially melted. That will create lots of back pressure and reduce horsepower.
Actually it’s real purpose is scrubbing for radioactive particles in the exhaust you might want to invest in a $50 Geiger counter people die all the time from cancer messing with it
You deliver excellent content to your audience. It's very interesting material. All of your effort put into creating this video is much appreciated. I'm truly grateful for your help!
Thanks for the video. A lot of people in the comments are judging your description, but I don't know why. I don't peruse TH-cam for videos to dislike. Thanks again for the good visual and explanation!
What is going to happen to the car if you put them two ceramic parts backwards (misplaced)?
It will fly
A lot of the generic cat converters do not have a directional arrow on the unit itself, so when you have a converter with no arrow, how do you know what is the inlet and outlet. mine has a oxygen sensor fitting but has a plug because the sensor is upstream (on the exhaust manifold itself). It's an OBD 1 cat converter and would like to know if there is a direction or not. Both inlet and outlet are 2" openings.
Kevinvansea yes the oxygen travels through
Next, the different types of o2 sensors (narrow band vs wide band and heated vs non heated) and how they function. Thanks
Great video mate. And what are the belts surrounding the ceramic cores, they look like some kind of insulation/anti-vibration part for centering the ceramic cores. What are those belts made of? Are they ceramic too? Thank you.
Old question, but in case someone else wants to know. I work in exhaust systems, the mat is usually fiberglass or similar heat resistant "cloth" like material and sometimes include silver flakes for special fueled cars, and it´s only function is to hold the ceramic in place so it doesn´t get damaged by movement, It´s hella brittle, some of the newer cats especially E5+ also have the mat as a sort of heat shield. But 90% of it´s function is just to hold the crap in place.
Best vid explains cats I have seen.ty.
Does it *only* work when the temperature is high like for car exhausts? Currently working on a dry type type composter DIY project - one that heats & dries kitchen waste & was thinking of re-purposing one within the recirculating hot air path to remove odor etc
Can you do a video explaining the difference between normal cats and high flow cats
Super-helpful, thanks!
one quick question I pass smog with flying colors. but my car is towing p0420. any idea. nox was low not even close to a cat being bad
Wich core should be the first in a TWC unmarked with arrow, the bigger one?
Platinum and palladium? hmm... I now know why Catalytic converters are so expensive.
Your saying normal engine ware like blow by, burning oil more with age, and fuel type are never going to cause it a problem.
Dear Sir, Can we use catylic converter for following flue gases.1) Carbon monoxide 2) Methene 3) Nitrogen oxide 4) Sulpher Oxide 5) Hydrogen chloride gas 6) Hydrogen fluoride 6) Mercury Vapour
Isn't these filter elements slightly radio active can u touch it the way u are?
When you have dual exhaust on an old Chevy big block with pipes 3 inches in dia. and an 850cfm holley carb getting about 8 mpg, it would need 2 cats for each bank? There's so much raw fuel coming out to make anyone's knees buckle. It may well burn through the cat converters on yearly basis with casual driving. A set I've found runs about $400-500. Would they even last very long?
Donu Duty why would a vehicle have a big carb like that on there in the first place? That big of a carb would throw raw fuel out of it instead of burning it. It makes no sense to me unless the homework has been done by matching the cam, the converter and the rear end for a particular application all that is accomplished is a bunch of noise and a carb that dumps raw gas out the end and poorer performance. I guess it looks and sounds cool
Informative, thank you
Good explanation, but your closing statements are incorrect, the fact of the matter is, those plates which the exhaust gets pushed through are going to create resistance of flow whether it be minuscule or a lot. So therefore creating some back pressure, so the engine isn't going to be running as efficient as it would without one. So yea it will create some loss of horsepower because you are restricting the flow of exhaust gases..... And that is why a basic way to create more horsepower is to take your catalytic converter off (which is illegal for road worthy vehicles because of emission standards). And that is why everyone says it robs your car of horsepower.
j0n0j0n0j yes you are correct but this may be very minuscule power or in some cars it actually gives you more low end to mid end power where you will be mainly driving at in the road.
j0n0j0n0j he also failed to mention that the smog pump robs horse power
j0n0j0n0j although you are correct. you are forgetting one key fact. the engine is designed to operate most efficiently at that pressure differential. So you might gain a minuscule amount of horsepower, but you will also loose fuel millage in a manner similar to running on a lean fuel mixture.
If you look at the cross section of the honeycomb it is much much larger than the exhaust tube so the restriction is reduced. In the end your muffler is much more restrictive than a modern converter.
Some back pressure is good for overlap.
Well explained.
If we remove the cat converter and install the aftermarket exhaust in bike.. does it effects the engine
Thank you man. very interesting explain
IT CLEANS THE EXHAUST GAS ---- DONE.
thanks for the explanation. Now i am in much better understanding of Catalytic Convertor.
Sir i am making a bike silencer which will Reduce carbon di oxide emissions from silencer can you tell which filter or what should i use in it to reduce carbon emissions. Please reply as soon as possible...
SMART ARSE !!!!.
agreed,...nice simple explanation...simple 1st/2nd year college chemistry relearned.
CFD Analysis of Catalytic Converter to Reduce
Particulate Matter and Achieve Limited Back
Pressure in Diesel Engine..... anyone help me
Pls is it true that a catalytic converter reduces fuel consumption?
And in what way pls.
Question. Can you weld a crack inside the honeycomb of a converter?
No. The honeycomb structure is ceramic, not metal.
didn't mention what the function of the support mats around the substrate are doing
Max Wroblewski to isolate them from vibration so they don't crack
any change in the temperature of the exhaust gases after is passes through the converter??
Yes. Remember that the second substrate essentially mixes oxygen and left over hydrocarbons and burns them inside the converter. The converter's inlet temperature can run at 350F while the outlet part of the converter can run at 600 to 700F. And that's only when the engine management system is working correctly and the hydrocarbon levels coming from the engine are correct and low. If you have a misfiring plug or a bad coil or a bad plug wire and you are throwing raw unburned fuel into the converter continuously that is what will overheat and melt the honeycomb structure. Under those conditions the temperatures inside the converter can soar to over 2,500F. Do that for very long and you can kiss the cat goodbye.
great video
Could a bad converter cause engine problems
OK, so I had a Jeep, where the tube from the cat fed into the air cleaner. All was OK, except that the cat produced water. On a cold day, the water would freeze, and the ice would clog the engine. I had to disconnect the tube coming out of the converter during the winter, other wise the engine would die when it was below freezing.
really very useful but i need more xplaination about its working
l wanna know the part can be cleaned?
What kind of sounds does this make when it goes bad?
Badlands It would be a louder exhaust sound
Ive never knew what that pipe hanging out was for
shall i contact you by emai ?
Question....How to clean this?
This device makes you car smell less like a 40 year old pickup truck from Mexico.
Please send all the videos how to clean the polluting air to the NGT and what is the solution of pollution. It is no justice to remove the old vehicles must check for fitness if any vehicle polluting give him time to recalibrate the engine so that the environment is pollution free. Thanks
Thanks
Is it true that the outer insulator in these things is 60 percent Chrysotile asbestos.?
I wanted to know how it worked all I got was what was on the box
LOL, the inside of it looks pretty much like catalytic converter , well Da
So, where is the cat?
Very nich
What's up with duct tapes ?
That is not duct tape wrapped around the substrates. Those are insulators. They keep the heat generated in the substrates from passing into the outside steel shell of the converter.
What happens when the smoke smells like rotten eggs?
Ramón R. That a SO2 smell very dangerous try not to inhale it too much. Your Cats probably not working right
a guy i know says there's gold in side them ..HAHA
You are very wrong what you said I took the catalytic converter off my car and then I dyno it again and it had double the horsepower
Maybe the converters were partially plugged. The substrates might have been partially melted. That will create lots of back pressure and reduce horsepower.
ARE YOU IMPLYING THE MOTOR TRADE WOULD TRY AND ROB THE PUBLIC BY DECEPTION HOW DARE YOU --- MERELY CONSTRUCTIVE MARKETING.
Actually it’s real purpose is scrubbing for radioactive particles in the exhaust you might want to invest in a $50 Geiger counter people die all the time from cancer messing with it
wtf are you talking about?
Watching because I don’t have one😂
I watched this video because , I see the news ,thieves are steeling this parts a lot lately.
رؤج
Have you ever seen a race car with a converter? Period!!
El Roquero Nice..😂😂😂
And u Hindi
Hate to say but …. BOOOOOORING
Catalytic converters = revenue makers for those states that require them
That’s the only reason they exist
How can it be called ingenious when the carbon emissions from mining platinum, paladium and rhodium far outway the benefits
all I could hear was erm, erm, erm, erm, erm , erm erm, when I wanted to know how it actualy worked erm erm did you get that useless
why do you talk like a politician? A lot of words with little meaning, I got bored after about 20 seconds...
lol be nice.
Just because you don't understand the words, does not mean they have little meaning.
R Factor agreed.
R Factor 😂 preach
Its called education, you might want to get some.