"Designers knew what they were doing, and unless you REALLY know what you're doing any modifying will make it worse" "The environment matters because we don't want to poison everyone, make smog, and cause acid rain." Two truths you'll rarely hear from car guys. These guys make amazing videos while being knowledgeable, down-to-earth, and wise. Not the usual "Get rid of your cat to get +15hp, bro!" This makes me a hypocrite though as I drive a '73 VW Bug with terrible emissions (no cat obviously, they didn't put them on back then) and I've modified the crap out of it, including electronic fuel injection. I've had thoughts of, once I get that fuel injection system working well and actually tuned right, maybe after putting a turbo on it, trying to incorporate a catalytic converter into the exhaust, just to see if I could do it and make it work right. Would be a crowded exhaust system, having turbo, cat, and muffler all packed in under the back end of the car as the engine is in the back. Don't have the money or fabrication skills to do something like that ... yet...
Quill Maurer turbo bug? Nice idea man, wish you luck on that. I'm into making sleepers out of cars myself. Hell my daily is going through that as we speak.
Quill Maurer I can highly agree there. My daily build is my coupe Accord (2002 model). I've got a better intake on it but I'm working on some other parts like getting a SOHC core and shipping it to Bishimoto for a stage 2 or 3 build.
I hope you have a spare bank account lying around. The reason us car guys like to rip them out isn't that we hate the environment, it's that they're more expensive than an engine! you can get a used 5.3 Vortec V8 for around $2,000, which is damn good for such a flexible and reliable (in my experience) engine, being capable of powering a full-size SUV and hammering down like any other vehicle. Honestly, I'd take the Vortec over a cat, simply because it would be worth two grand. An expertly machined chunk of precious metal isn't really interesting, unless it'll make the engine sound better and perform better without me having to sell anything.
1:55 the catalytic converter in a car indeed has rhodium. The element in the picture however is rubidium (Rb). Should be Rh. Rubidium would however look spectacular when put in an exhaust pipe, as it reacts violently with water and oxygen.
Catalytic Converters really are one of the best improvements for cars ever. Other great advancements that nobody talks about thought is variable valve timing. Without it we’d be stuck still driving seriously underpowered cars to this day like in the 80s. Thanks to variable valve timing. We get great fuel efficiency when we’re just putting around then when we want to stomp on it. We also get awesome power. Another great advancement is fuel injectors. People say it’s more complex but I think it’s easier to work on than a carb. The computer does all the work. All you gotta do is pop the old fuel injector out and plop in a new one. Also I think coil packs are way easier to work on even if it’s more complex to make. Also an idiot can’t wire a coil pack the wrong way like my friend did with his distributor cap. He just put the spark plug wire back any which way and ducking up his car.
I have a new car model (about 2017) working on diesel and a semi-open garage (I mean there is a ceiling that covers two-thirds of the car but not all the car, three walls but there is no door in the entry, and instead 2,5 meters of fresh air). Can carbon monoxide still be dangerous if the car's motor remains on, or is it safe even if I forget to put it off and stay inside the garage??
damn good thing you finally made a video on those catholic converters, they're all over the place ringing my door every tuesday with their bible and stuff smh
Romain, your lame joke shows how little you know of Catholics. They don't go around door-to-door, and as a group actually haven't done much evangelizing in centuries.
This is literally the best series out on TH-cam! I study at Stanford University and this is probably more useful than anything I’ve learned from there.
I love these vids SO much because I learn something new with every one of them. But I’m still waiting for that Supercharger-down-to-the-atom vid •_• xD
Deric Cribbs unless it's a VW/Audi in which case they give two different codes, one generic obd2 that doesn't help, and one extremely specific code that requires dealer software to read
concordsst this is what I'm talking about. You're referring to vcds and there are open source mobile software for them also, but you'd have to be interested in learning more about software to make it work. They could mention the brands that have these proprietary systems so we could make our own choices about vehicle service.
@@coal2710 Yes, they are used. And a lot. In fact, I just rebuilt one yesterday. A 4100 series 1959 Autolite/Ford 4 barrel. If they weren't still used today, summit racing, jegs, etc, wouldn't be selling so many of them. lol In a performance comparison between a BG Race Demon carburetor vs an electronic fuel injection, both installed on a base test engine, the Race Demon carburetor outperformed the fuel injection not only in horsepower, but also in low end torque. Fuel injection is handy if you can't build your own engines/tune your own carbs, etc. But otherwise, it is inferior in terms of performance on naturally aspirated engines.
This show is great. I’m okay if you guys get into more technical stuff dealing with the engine because I want to start working on my car soon. I really like this format.
It uses heat to cycle electric current through superconductors. I think when they came out in the 70s, they were suprised to find that it improved gas mileage. Thats because less power from the motor is being used to generate electricity through the Dynamo, and the leftover energy is stored in the battery. And the car has enough power to burn gas, without burning more gas for more power
I’m probably one of the fewMotoring enthusiast who isn’t a fan of guys remove there cats for the extra 1-5hp and in doing so their impact on the environment is so much greater
I'm another. I actually installed dual Magnaflow cats (my truck originally came with only 1) since I have a full true dual exhaust, and I lost 0 noticable performance going from 0 cats before to 2 on the same exact exhaust setup. All I "lost" was a stinky exhaust, a couple dB inside the cab (particularly at idle) and a few less dB outside the truck. That's it.
@@Jellymiqo While factories and boats do make up the majority of our global emissions, those emissions will not directly affect you as much as the local sources of pollution in your area. Factories pollute the atmosphere, cars without cats directly poison you and everyone around them depositing CO and unreacted hydrocarbons directly in your lungs
Yaaaay!!! Y'all did catalytic converter! I love this channel. So entertaining. Also 3:25 - 3:26 I thought you were about to sing "We will, we will ROCK YOU!"
Unless..... you were Honda and invented an engine (CVCC) that didn't need a catalytic converter, and later built a small car around it.... and BAM!!!: The Honda Civic!!!
MK3424 CVCC was effective, and it was insanely complicated. Swiss watches are child's play next to CVCC. That's why Honda later switched to conventional catalytic converters later on.
Thanks i having problems with my Suzuki Grand Vitra 2000 passing smog. I have taken to auto repairs shops and all of them didn’t know what they were doing I think. Until I got on utube doing my research on Suzuki Grand Vitra and now my Chevy Silverado is having the same problem. Again thank you for your share.
I really like how he cares about the environment. Hate guys going "catless" just because it's cheaper and "sounds better". High performance will sound just as good and perform just as well as catless, only downside is that it's a bit more expensive. But it is very well worth it for the only planet we have
@@OmniversalInsect as if it matters tbh factories cause far more pollution in 5 minutes than a car does the whole "love our planet" nonsense is a bit rich given people didn't care in the slightest until 3 years ago and even now the whole green movement is idiocy at its best because people think gas powered cars are bad but they ignore the past studies on what batteries do to the environment
I know emissions aren't a cool part of cars but I think its pretty cool that we cut emissions so much. Like our air is completely different in just a few decades
You're now my favorite presenter for Donut Media. You are funny, witty, and highly entertaining. Did you get training on this type of media presentation?
Part of the reason of the increased efficiency when using a cat is because of the heat generated within it. Hotter air moves faster in the pipe because of the expansion, creating more pressure, forcing the air along, and (correct me if wrong here) the faster moving atoms also create less friction across the walls of the pipe they're travelling down. Now if you understand exhaust velocity and its correlation to scavenging, faster moving gases mean stronger negative pressure behind each pulse... Stronger negative pressure means better scavenging. Better scavenging means a cleaner intake charge, and also possibly a fuller intake charge, helping to suck the air in during the valve overlap. That assistance is a reduction in pumping losses, and the cleaner mixture makes more boom per cycle, which together makes... Moar Powa, Baby! 🙃
This is why I really don’t like the idea of people removing their cat’s it seems so selfish to damage everyone’s environment for a few more horsepower. If that.
To anyone feeling like their dealership or the manufacturer is ripping them off, please read this in its entirety. It may be long, but the details matter, and there is maybe a books worth, so I’m trying hard to stay on point and the suspension thing is a perfect example of how they work. Here’s a question I’ve been looking for an answer to for about a year. Please if anybody has any legitimate input let me know. Does or can the catalyst “swell” or “expand” when it gets hot, and then “shrink” or “contract” when it cools? No obviously we all know that things do that with heating and cooling, but not that much. Can this occur with enough difference that when it swells it can block the exhaust and cause enough back pressure to make a modern car shut off suddenly? And when it shuts off, can it shrink back to normal size within a few seconds, maybe 10 seconds, or even 30? Oh, and all the while no issues with mileage or horsepower, and this happened in a very random manner. I was told that my cats on my 2006 Dodge Magnum RT (Hemi V8) needed replacing (@160,000miles), as well as oxygen sensors and plugs(that were only 50,000miles old) and coil packs. All of this after the engine light came on and it ran a little rough sometimes but not too badly. No loss of power, no mileage degradation, no running hot from backpressure, no sulfur smell from exhaust, no rattle from the cats, all of which I had learned were various symptoms of a bad catalytic converters. Trust me, I thought I knew cars well enough to call bullshit on this swelling and shrinking assessment. Long story short, I’ve got a Lifetime Bumper to Bumper Chrysler Warranty on my car that I purchased when offered, upon my factory warranty running out. Also I’ve had this car ONLY serviced at this dealership where I bought the car brand new, or at the sister dealership across town, but mostly at this one. They’ve stonewalled me on things that seemed at the time to be inconsequential, and also at the time I got sick of complaining about all of the suspension racket from beneath the car. Even though I asked them to look at it almost every time I took it in for service, they almost always said they could t find anything. Now I know that I was right the whole time and that they were just lying. I wasn’t just complaining about superficial noise either. At times you could feel things moving around when I backed out of a driveway for instance. Sometimes the front tires would “scrub” when turning at slower speeds because the two front tires were traveling in different arcs than the ones they were designed to follow. Once the service manager told me that he and a tech took it for a test drive and they discovered rocks inside the rear bumper and they couldn’t be removed “without a whole process which would be a royal pain in the but”. Rocks in my back bumper? As the source of all of the suspension noise. I have restored many an old car and am proficient at getting rid of squeaks, rattles, clunks, etc. It often sounded like an old coffee can with a handful of bolts in it whenever I hit almost ANY bump in the road, cracks, expansion joints, etc, utterly ridiculous, and so loud and noisy I was embarrassed to have passengers, cause it sounded like a 1982 Crown Vic which had never had a single suspension component replaced and was parked in saltwater puddles and driven for thirty years on tank trap type streets. It was actually worse than that. And on and on. That was just to set the stage for treatment. So they told me I needed to replace these things and I would generally have no problem with letting them do their thing as I just pay a $100 deductible. So the story was that the code indicated a misfire condition(notoriously inaccurate because other things can set off that code) which COULD have sent unburied fuel into the cats and ruined them. Now from what I understand to do so would require driving for maybe hundreds of miles with that misfire, but I only felt it misfire once when the light first came on. Otherwise it would just shut off, while driving. So I really doubted their diagnosis. The plugs were not very old, the O2 sensors and coil packs were covered, but not the cats. Deep in the warranty agreement it states they are not covered. I think they just wanted me to have to actually pay for something, or just ripped me off. I asked if I could get the other stuff done and maybe do the cats if the problem persisted. This was $2k I didn’t have mind you. They told me that I could do that, but anything damaged by not replacing them would not be covered under warranty. They basically “bullied” me into it, with leverage. That loose description led me to believe that they could claim just about anything after that. Oil pump dies? Shoulda gotten those cats when we told you to. That’ll be another $2000 sir. So I kept asking around and searching online and finally called the service advisor and explained my predicament. They got a tech on the phone and I asked why no standard symptoms of “bad catalytic converters”? Why did it fire right back up and drive like nothing happened for many miles if they were clogged when hot? He gave me the above explanation. I know I got ripped off. But has ANYONE, EVER heard of such a thing happening? So far even the pay-for-an-answer people online said they thought I had been duped. And I phrased to not induce an expected answer, kind of like above, but shorter. Any metal swells when heated, but enough to block exhaust flow and shut down the car? And the temp gauge never moved either. And it certainly didn’t run like tha t car would if it was really hot, like with heat soak. I bullshit. I am reaching out because I intend to take them to court, and if I can’t get one single reputable response saying that “yes, they can swell that much and he was telling the truth”, then they are screwed. And that is just the start. After tons of research, I have discovered that Chrysler has been screwing people on a criminal scale since the early 2000’s. Not like the usual, like we all know that all dealership jerk people around, and so do the manufacturers, but just within the law, usually, well this is fraud, and I can prove it. So if you have a late model Chrysler product and you have been having problems with it and the dealership seems to be giving you a story or ripping you off or even not fixing it at all, please let me know. They have been selling parts to customers by the thousands that did not fix the problem and the dealership just convinces them to spend more money and “try this”, and if that doesn’t work “try this”. All while not giving a refund on the part that didn’t fix the problem and most likely was perfectly fine anyway. My contention is that they know the problem , have been lying to America for 15+ years, and ripping people off the whole time. And I’m in kind of a semi-unique position to make these claims. Through interviews and reading comments and forums I have discovered this: if I were a regular “paying” customer with no warranty they would sell me parts all day long claiming that it will fix the problem, and when it doesn’t they make an excuse for not refunding money and the tell them that the next parts will definitely fix it. People have even replaced the transmission, only to have the problem come back a week later, because the transmission was never the problem. People have blown thousands of dollars on these cars and the problem ALWAYS PERSISTS. And that is because they just replace with the same crappy but new part that came off, which is sure to fail. So far I have discovered that the problem is with the computer infrastructure of the car, where kind of like your computer, when something goes awry, it freezes up. Well when these cars have any kind of intermittent connection, short, etc. they just shut down. They will always start right back up though, sometimes without another issue for months, sometimes minutes. So every time they replace a part, that wiring harness connector gets cleaned(if they’re doing it right) properly and reconnected, generally improving the connection, but not always, and not always for good. It’s like the old saying, if they know this, they are lying and in on the con, and if they don’t, then they aren’t qualified to be a car dealership or Chrysler a manufacturer. They will be shut down, very soon, mark my word. Maybe not by me, but they will. I give them till 2022. That’s three years. I think it would take that long for my case to be seen if it ever happens, but meanwhile I’m building up evidence, and if you feel like you’ve been screwed by ANY automobile manufacturer please share your stories. Read the Magnusson-Moss Warranty Act and you’ll see that they are trampling all over the implied warranty part. By the way, there is a You Tube Video of a sheriff’s department showing the suspension parts from one of their Chargers. It is scary. 98% of cars and trucks out there have suspension bushing that will last at least 100,000 miles, but more likely upwards of 200,000. Well the parts on all of these Chargers, 300s, and Magnums have a 20-30,000 mile average service life. That right there breaks the implied warranty rule. It is absolutely incomparable with any other comparable product on the market, and by a huge margin. Thanks for your time. Hit me back and I’ll figure out how to link you to tons of info and I’m about to open a You Tube channel devoted to these issues.
@@lsswappedcessna nope. P0420 is the O2 sensor telling you the cat isn't working. Throwing a couple hundred at a sensor only lightens your bank account.
If I don’t have a cat, I’ll go faster. If I go faster, my car won’t run as long. Therefore, speeding is better for the environment. 🌈The more you know🌈
That was so well done. Informative enough, easily comprehendible and just enough cringe to make it entertaining without being uncomfortable..oh and I didn't mind that the host was giving off a sexy Richie Cunningham vibe.
This was very useful I just did a straight pipe to my car great video. As what gloves are you using there I do hvac wouldn't mind using a pair like that be safe bro
![[#2024MAMA] ROSÉ (로제), Bruno Mars - APT. | Mnet 241122 방송](http://i.ytimg.com/vi/dgGqD28J6aQ/mqdefault.jpg)
An addiction to Donut that wont result to diabetes.
Arnaldo Jansen Carino i have Diabetes
sorry to hear than.
'won't result to' u already had one. sry m8
hahaha very punny
Jake Lamb prick
"Designers knew what they were doing, and unless you REALLY know what you're doing any modifying will make it worse" "The environment matters because we don't want to poison everyone, make smog, and cause acid rain." Two truths you'll rarely hear from car guys. These guys make amazing videos while being knowledgeable, down-to-earth, and wise. Not the usual "Get rid of your cat to get +15hp, bro!" This makes me a hypocrite though as I drive a '73 VW Bug with terrible emissions (no cat obviously, they didn't put them on back then) and I've modified the crap out of it, including electronic fuel injection. I've had thoughts of, once I get that fuel injection system working well and actually tuned right, maybe after putting a turbo on it, trying to incorporate a catalytic converter into the exhaust, just to see if I could do it and make it work right. Would be a crowded exhaust system, having turbo, cat, and muffler all packed in under the back end of the car as the engine is in the back. Don't have the money or fabrication skills to do something like that ... yet...
Quill Maurer turbo bug? Nice idea man, wish you luck on that. I'm into making sleepers out of cars myself. Hell my daily is going through that as we speak.
Thanks, I'll need it! The bug is my daily, but I don't see why I can't have a daily turbo bug.
it's so refershing to see a car video that doesn't take a straight up hateful view to any kind of environmentalism. WE GOTTA BREATHE GUYS
Quill Maurer I can highly agree there. My daily build is my coupe Accord (2002 model). I've got a better intake on it but I'm working on some other parts like getting a SOHC core and shipping it to Bishimoto for a stage 2 or 3 build.
I hope you have a spare bank account lying around. The reason us car guys like to rip them out isn't that we hate the environment, it's that they're more expensive than an engine! you can get a used 5.3 Vortec V8 for around $2,000, which is damn good for such a flexible and reliable (in my experience) engine, being capable of powering a full-size SUV and hammering down like any other vehicle. Honestly, I'd take the Vortec over a cat, simply because it would be worth two grand. An expertly machined chunk of precious metal isn't really interesting, unless it'll make the engine sound better and perform better without me having to sell anything.
'Catbacks. Resonator. Straight Pipe. Today we're not talking about any of those things.'
What a twist XD
Hanindito Haidar *top 10 anime plot twists*
To be honest, this is my favorite part of Donut, sorry James
Learning stuff is great!
@@JoeIsCrazyWillman My favourite donut show is definitely up to speed
You know that obviously wheelhouse is the best
墨西哥入境
i miss this dude
1:55 the catalytic converter in a car indeed has rhodium. The element in the picture however is rubidium (Rb). Should be Rh. Rubidium would however look spectacular when put in an exhaust pipe, as it reacts violently with water and oxygen.
Good catch! I also noticed this mismatch and was confused. Thanks for clarifying.
well technically🤓
@@fedepede9754how else was i gonna know
My reaction to seeing it as well😊
Catalytic Converters really are one of the best improvements for cars ever. Other great advancements that nobody talks about thought is variable valve timing. Without it we’d be stuck still driving seriously underpowered cars to this day like in the 80s. Thanks to variable valve timing. We get great fuel efficiency when we’re just putting around then when we want to stomp on it. We also get awesome power. Another great advancement is fuel injectors. People say it’s more complex but I think it’s easier to work on than a carb. The computer does all the work. All you gotta do is pop the old fuel injector out and plop in a new one. Also I think coil packs are way easier to work on even if it’s more complex to make. Also an idiot can’t wire a coil pack the wrong way like my friend did with his distributor cap. He just put the spark plug wire back any which way and ducking up his car.
except meth heads are willing to shoot you and your kids in the head so they can cut it off and sell it for $100...yeah great contribution to society.
I have a new car model (about 2017) working on diesel and a semi-open garage (I mean there is a ceiling that covers two-thirds of the car but not all the car, three walls but there is no door in the entry, and instead 2,5 meters of fresh air).
Can carbon monoxide still be dangerous if the car's motor remains on, or is it safe even if I forget to put it off and stay inside the garage??
Some teacher was probably showing these videos in class until 0:41 happened 😂
Daniel G He says “you suck” not f**k. But I can see what u mean when he says sh*t
I long for the days when we get over this infantile obsession with curse words. Not using them, mind you, but obsessing over when they're used.
College professors don't care
I died at this
That whole bit😂😂
The Catalytic Converter in my 240sx overheated and grenaded itself out the back of my 3" exhaust. That was kinda cool.
Well I'm sure it was a learning experience lmao
damn good thing you finally made a video on those catholic converters, they're all over the place ringing my door every tuesday with their bible and stuff smh
"Sorry friend, I don't want to become a child molester."
Romain Joubert. No they're not.
That ain't catholic, that's either JW or mormon.
Romain, your lame joke shows how little you know of Catholics. They don't go around door-to-door, and as a group actually haven't done much evangelizing in centuries.
@@reallyhappenings5597 No one cares
This is such a great series of videos. Funny, witty, easy to understand, and FULL of GREAT and useful information. Keep it up guys!
Damn I feel smart now
Curtis Campbell hi from french
You look smart!
me too thanks
bye bye ...i just forgot steven hawkings name lol
Curtis Campbell there is a mistake in the video, carbon monoxide does *NOT* deplete the ozone layer
This is literally the best series out on TH-cam! I study at Stanford University and this is probably more useful than anything I’ve learned from there.
I love these vids SO much because I learn something new with every one of them.
But I’m still waiting for that Supercharger-down-to-the-atom vid •_•
xD
Carlos Barberena i want to see how is antilag made 😂
Haha, yupp me too XD
LetThe HateFlow Hahaha 😂
For sure, same here--if only school was this much fun
GETUP AND GO Seriously, I would be at school right now if Science class was Science Garage lol
This entire youtube channel helped me pass my ASVAB for the army with flying colors, specifically the mechanic section of the exam.
People need to learn how obd2 works!
This will help people understand why they don't "need" a special dealership computer to work on their car😲
Deric Cribbs unless it's a VW/Audi in which case they give two different codes, one generic obd2 that doesn't help, and one extremely specific code that requires dealer software to read
concordsst this is what I'm talking about.
You're referring to vcds and there are open source mobile software for them also, but you'd have to be interested in learning more about software to make it work. They could mention the brands that have these proprietary systems so we could make our own choices about vehicle service.
that would be great actually.. some things are quite confusing.
Donut media has a video on this!
Your right they don't, but not every jackleg can diagnose one properly. Being able to scan it and being able to fix it are 2 different things.
Thanks for doing this im so sick of everyone thinking being catless is cool!
Killer episode, can't wait for the next one
Yes ma’am
Yes
Yes ma’am
This aged like fine milk
@@cortneyjackson1739 sir pls leave these comments
I miss Science Garage
#BringBackBart
I wish they did a video comparison of stock cats vs. high flow cats vs. straight pipe. Maybe even cut open a hfc to see the cells.
dougarnold maybe engine masters should do that since they actually dyno test
dougarnold maybe a video on spacers/defouler
Modern cats don't hurt performance, you can have your power and be clean too, no excuses anymore Honda bois.
cost? bloody two and a half grand for a chunk of metal!
Removing that shit is good for 20hp in my case. No one died because of a catless car. Get a grip. 😂
Le Enderman And now you fail smog checks and can't legally drive.
Even if cats hurts performance, I will still leave them on.
Le Enderman If everyone had the same mindset as you we'd all be dead by now.
guess what guys
its Thursday tomorrow and you know what that means ..... UP TO SPEEEEEEEEEEEEEEEEDDDDDDD
Lleyton Albertini Need that!
Neu neu neu neu neu noo neu noo neu noo neu noo neu!
Lleyton Albertini RAMCHARGERS
Lleyton Albertini hell yeah today is Thursday..... a year later
🤣🤣🤣
@@daniellamendoza4914 yep a year later and just as the person said it's thursday tomorrow (for me)
I love this guy and I love how he explains everything while sticking to the point
1:52 Rb is rubidium.
And Rhodium (Rh) is used in catalytic converters!
John Kayne yup, he says it right later on though.
Lol I was going to say... all chemists cringed at that moment
Rubidium would be very bad to have in your cat lol, exploding when the hydrocarbons are oxidized and water is created
This is the best series on TH-cam.
Do carburetors next.
Yes!! I have no clue how those things work
+DaBrute omg yes. I get the jets, I don't understand the floats. just that they keep things from starting.
I think they did that already
Carburators are not used anymore. Now, there are Electronic Fuel Injection(EFI) systems that are connected to the cars' Engine Control Unit(ECU).
@@coal2710 Yes, they are used. And a lot. In fact, I just rebuilt one yesterday. A 4100 series 1959 Autolite/Ford 4 barrel. If they weren't still used today, summit racing, jegs, etc, wouldn't be selling so many of them. lol
In a performance comparison between a BG Race Demon carburetor vs an electronic fuel injection, both installed on a base test engine, the Race Demon carburetor outperformed the fuel injection not only in horsepower, but also in low end torque. Fuel injection is handy if you can't build your own engines/tune your own carbs, etc. But otherwise, it is inferior in terms of performance on naturally aspirated engines.
Never get tired of watching this guy talk tbh. Awesome!
God I love this series. This new show and Up To Speed will keep me a long time active subscriber.
Top ten comments before disaster
This channel is the only reason I’m the best in my auto class.
Do we get a mechanic's degree with this video? :D
Rb is Rubidium, not Rhodium. Rhodium is Rh
I'm a chemist that tests for metals. :)
No one asked 😂
@@balance667 lol. That was 2 years ago bruh.
I asked, you got a problem?
Don't worry, as a fellow chemist I was also extremely bothered
This show is great. I’m okay if you guys get into more technical stuff dealing with the engine because I want to start working on my car soon. I really like this format.
that subtle "fuck!" at 0:40 was great
“Don’t tell my wife I took the catalytic converter off the car” that smile sold it oh my lord it was perfect 😂
It uses heat to cycle electric current through superconductors.
I think when they came out in the 70s, they were suprised to find that it improved gas mileage.
Thats because less power from the motor is being used to generate electricity through the Dynamo, and the leftover energy is stored in the battery.
And the car has enough power to burn gas, without burning more gas for more power
I’m probably one of the fewMotoring enthusiast who isn’t a fan of guys remove there cats for the extra 1-5hp and in doing so their impact on the environment is so much greater
I'm another. I actually installed dual Magnaflow cats (my truck originally came with only 1) since I have a full true dual exhaust, and I lost 0 noticable performance going from 0 cats before to 2 on the same exact exhaust setup. All I "lost" was a stinky exhaust, a couple dB inside the cab (particularly at idle) and a few less dB outside the truck. That's it.
shame that it wont make a difference at all in the long run becuase like 90% of emissions are made by factories and big companies
@@Jellymiqo While factories and boats do make up the majority of our global emissions, those emissions will not directly affect you as much as the local sources of pollution in your area. Factories pollute the atmosphere, cars without cats directly poison you and everyone around them depositing CO and unreacted hydrocarbons directly in your lungs
Simple, straightforward. Well done. You have earned another subscriber.
*"don't tell my wife I took the catalytic converter off her car"*
😂😂😂
Donut and Carfection are taking over. Great stuff guys.
Yaaaay!!! Y'all did catalytic converter! I love this channel. So entertaining. Also 3:25 - 3:26 I thought you were about to sing "We will, we will ROCK YOU!"
Sirlance Nolasco Remix away! Ask Schmoyoho th-cam.com/users/schmoyoho
The cut-it-open part was a great surprise! Love seeing the chambers.. makes so much sense
Bravo!🎉
Unless..... you were Honda and invented an engine (CVCC) that didn't need a catalytic converter, and later built a small car around it.... and BAM!!!: The Honda Civic!!!
MK3424 CVCC was effective, and it was insanely complicated. Swiss watches are child's play next to CVCC. That's why Honda later switched to conventional catalytic converters later on.
It was amazing that Honda passed emissions testing on a vehicle with a carburetor and NO catalytic converter, but it was complicated AF.
It was good enough at the time, but stricter laws meant it was not, so a cat still became required
This is literally the first time ive seen this guy and within 30 seconds of watching i wanted to subscribe
This show is always awesome!
Thanks i having problems with my Suzuki Grand Vitra 2000 passing smog. I have taken to auto repairs shops and all of them didn’t know what they were doing I think. Until I got on utube doing my research on Suzuki Grand Vitra and now my Chevy Silverado is having the same problem. Again thank you for your share.
I really like how he cares about the environment. Hate guys going "catless" just because it's cheaper and "sounds better". High performance will sound just as good and perform just as well as catless, only downside is that it's a bit more expensive. But it is very well worth it for the only planet we have
not its not because it doesn't matter the emission problems start at factories not at the people
@@Jellymiqo Normally yes but there are a lot of cars and each car would emit a considerable amount of these gases over time
@@OmniversalInsect as if it matters tbh factories cause far more pollution in 5 minutes than a car does
the whole "love our planet" nonsense is a bit rich given people didn't care in the slightest until 3 years ago and even now the whole green movement is idiocy at its best because people think gas powered cars are bad but they ignore the past studies on what batteries do to the environment
Saw this video on Facebook, I then immediately opened my TH-cam app and subbed; great content!
Now time to binge.
It's like Bill Nye for cars
only this guy seems to know what he's talking about
"Tires are on a spectrum."
Precisely
Except there’s no talk about sex junk
I know emissions aren't a cool part of cars but I think its pretty cool that we cut emissions so much. Like our air is completely different in just a few decades
You're now my favorite presenter for Donut Media. You are funny, witty, and highly entertaining.
Did you get training on this type of media presentation?
Part of the reason of the increased efficiency when using a cat is because of the heat generated within it. Hotter air moves faster in the pipe because of the expansion, creating more pressure, forcing the air along, and (correct me if wrong here) the faster moving atoms also create less friction across the walls of the pipe they're travelling down.
Now if you understand exhaust velocity and its correlation to scavenging, faster moving gases mean stronger negative pressure behind each pulse... Stronger negative pressure means better scavenging. Better scavenging means a cleaner intake charge, and also possibly a fuller intake charge, helping to suck the air in during the valve overlap. That assistance is a reduction in pumping losses, and the cleaner mixture makes more boom per cycle, which together makes... Moar Powa, Baby! 🙃
Tell this to the people that watch the Haggard Garage.
This show takes me back to my elementary days. It’s like a fun class
"You see what I did there? Catalytic converter." ROFL
Thanks for explaining things in a way that's easy to understand!
How do hybrid systems like in the Porsche 919 LMP1 car work? How do they turn the heat from the exhaust into energy they can use?
Great question! We'll have to do that!
I thought only the Ferrari leferrari did that, it's called KERS by the way.
Just found this guy's channel and I LOVE IT! Bart for president 😄
1:07 that guy tho
My AP Environmental Science class used this video for a lesson!
"Let's cut it open!"
in the kitchen....
We want science garage back again!!
Bill nye the car guy
"Transmissions are on a spectrum"
Best series on donut media yet!
Hi flow cat if you want loud exhaust magic 👍🏼
Catbacks
Resonator
Straight pipe
RAMCHARGERS
Sandro Mičić RAMCHARGERS🙌
Ramchargers🙌 thx james
R A M C H A R G E R S 🙌
Straightforward,
nicely presented and informative ,
Witty.Thank you
carburetor next?
My AP Environmental Science teacher had us watch this, and this is NOT what I was expecting lol
This is why I really don’t like the idea of people removing their cat’s it seems so selfish to damage everyone’s environment for a few more horsepower. If that.
What do cats have to do with this video?
@@oreothejuicerI almost took the bait 😂
But fuck the environment when it comes to going to the track 😂
Man...best lecture I ever had
You just became my hero you're a genius thank you for explaining this everyone needs to stop the madness keep that shitt in your car
no
To anyone feeling like their dealership or the manufacturer is ripping them off, please read this in its entirety. It may be long, but the details matter, and there is maybe a books worth, so I’m trying hard to stay on point and the suspension thing is a perfect example of how they work.
Here’s a question I’ve been looking for an answer to for about a year. Please if anybody has any legitimate input let me know.
Does or can the catalyst “swell” or “expand” when it gets hot, and then “shrink” or “contract” when it cools? No obviously we all know that things do that with heating and cooling, but not that much. Can this occur with enough difference that when it swells it can block the exhaust and cause enough back pressure to make a modern car shut off suddenly? And when it shuts off, can it shrink back to normal size within a few seconds, maybe 10 seconds, or even 30? Oh, and all the while no issues with mileage or horsepower, and this happened in a very random manner. I was told that my cats on my 2006 Dodge Magnum RT (Hemi V8) needed replacing (@160,000miles), as well as oxygen sensors and plugs(that were only 50,000miles old) and coil packs. All of this after the engine light came on and it ran a little rough sometimes but not too badly. No loss of power, no mileage degradation, no running hot from backpressure, no sulfur smell from exhaust, no rattle from the cats, all of which I had learned were various symptoms of a bad catalytic converters. Trust me, I thought I knew cars well enough to call bullshit on this swelling and shrinking assessment. Long story short, I’ve got a Lifetime Bumper to Bumper Chrysler Warranty on my car that I purchased when offered, upon my factory warranty running out. Also I’ve had this car ONLY serviced at this dealership where I bought the car brand new, or at the sister dealership across town, but mostly at this one. They’ve stonewalled me on things that seemed at the time to be inconsequential, and also at the time I got sick of complaining about all of the suspension racket from beneath the car. Even though I asked them to look at it almost every time I took it in for service, they almost always said they could t find anything. Now I know that I was right the whole time and that they were just lying. I wasn’t just complaining about superficial noise either. At times you could feel things moving around when I backed out of a driveway for instance. Sometimes the front tires would “scrub” when turning at slower speeds because the two front tires were traveling in different arcs than the ones they were designed to follow. Once the service manager told me that he and a tech took it for a test drive and they discovered rocks inside the rear bumper and they couldn’t be removed “without a whole process which would be a royal pain in the but”. Rocks in my back bumper? As the source of all of the suspension noise. I have restored many an old car and am proficient at getting rid of squeaks, rattles, clunks, etc. It often sounded like an old coffee can with a handful of bolts in it whenever I hit almost ANY bump in the road, cracks, expansion joints, etc, utterly ridiculous, and so loud and noisy I was embarrassed to have passengers, cause it sounded like a 1982 Crown Vic which had never had a single suspension component replaced and was parked in saltwater puddles and driven for thirty years on tank trap type streets. It was actually worse than that. And on and on. That was just to set the stage for treatment. So they told me I needed to replace these things and I would generally have no problem with letting them do their thing as I just pay a $100 deductible. So the story was that the code indicated a misfire condition(notoriously inaccurate because other things can set off that code) which COULD have sent unburied fuel into the cats and ruined them. Now from what I understand to do so would require driving for maybe hundreds of miles with that misfire, but I only felt it misfire once when the light first came on. Otherwise it would just shut off, while driving. So I really doubted their diagnosis. The plugs were not very old, the O2 sensors and coil packs were covered, but not the cats. Deep in the warranty agreement it states they are not covered. I think they just wanted me to have to actually pay for something, or just ripped me off. I asked if I could get the other stuff done and maybe do the cats if the problem persisted. This was $2k I didn’t have mind you. They told me that I could do that, but anything damaged by not replacing them would not be covered under warranty. They basically “bullied” me into it, with leverage. That loose description led me to believe that they could claim just about anything after that. Oil pump dies? Shoulda gotten those cats when we told you to. That’ll be another $2000 sir. So I kept asking around and searching online and finally called the service advisor and explained my predicament. They got a tech on the phone and I asked why no standard symptoms of “bad catalytic converters”? Why did it fire right back up and drive like nothing happened for many miles if they were clogged when hot? He gave me the above explanation. I know I got ripped off. But has ANYONE, EVER heard of such a thing happening? So far even the pay-for-an-answer people online said they thought I had been duped. And I phrased to not induce an expected answer, kind of like above, but shorter. Any metal swells when heated, but enough to block exhaust flow and shut down the car? And the temp gauge never moved either. And it certainly didn’t run like tha t car would if it was really hot, like with heat soak. I bullshit. I am reaching out because I intend to take them to court, and if I can’t get one single reputable response saying that “yes, they can swell that much and he was telling the truth”, then they are screwed. And that is just the start. After tons of research, I have discovered that Chrysler has been screwing people on a criminal scale since the early 2000’s. Not like the usual, like we all know that all dealership jerk people around, and so do the manufacturers, but just within the law, usually, well this is fraud, and I can prove it. So if you have a late model Chrysler product and you have been having problems with it and the dealership seems to be giving you a story or ripping you off or even not fixing it at all, please let me know. They have been selling parts to customers by the thousands that did not fix the problem and the dealership just convinces them to spend more money and “try this”, and if that doesn’t work “try this”. All while not giving a refund on the part that didn’t fix the problem and most likely was perfectly fine anyway. My contention is that they know the problem , have been lying to America for 15+ years, and ripping people off the whole time. And I’m in kind of a semi-unique position to make these claims. Through interviews and reading comments and forums I have discovered this: if I were a regular “paying” customer with no warranty they would sell me parts all day long claiming that it will fix the problem, and when it doesn’t they make an excuse for not refunding money and the tell them that the next parts will definitely fix it. People have even replaced the transmission, only to have the problem come back a week later, because the transmission was never the problem. People have blown thousands of dollars on these cars and the problem ALWAYS PERSISTS. And that is because they just replace with the same crappy but new part that came off, which is sure to fail. So far I have discovered that the problem is with the computer infrastructure of the car, where kind of like your computer, when something goes awry, it freezes up. Well when these cars have any kind of intermittent connection, short, etc. they just shut down. They will always start right back up though, sometimes without another issue for months, sometimes minutes. So every time they replace a part, that wiring harness connector gets cleaned(if they’re doing it right) properly and reconnected, generally improving the connection, but not always, and not always for good. It’s like the old saying, if they know this, they are lying and in on the con, and if they don’t, then they aren’t qualified to be a car dealership or Chrysler a manufacturer. They will be shut down, very soon, mark my word. Maybe not by me, but they will. I give them till 2022. That’s three years. I think it would take that long for my case to be seen if it ever happens, but meanwhile I’m building up evidence, and if you feel like you’ve been screwed by ANY automobile manufacturer please share your stories. Read the Magnusson-Moss Warranty Act and you’ll see that they are trampling all over the implied warranty part. By the way, there is a You Tube Video of a sheriff’s department showing the suspension parts from one of their Chargers. It is scary. 98% of cars and trucks out there have suspension bushing that will last at least 100,000 miles, but more likely upwards of 200,000. Well the parts on all of these Chargers, 300s, and Magnums have a 20-30,000 mile average service life. That right there breaks the implied warranty rule. It is absolutely incomparable with any other comparable product on the market, and by a huge margin. Thanks for your time. Hit me back and I’ll figure out how to link you to tons of info and I’m about to open a You Tube channel devoted to these issues.
Dude you gotta normalize the audio in your videos, these spikes blew my eardrums out
The catalytic converter next to the fact that we took lead out of our gasoline has done much for our air quality. Great video.
Oh i thought there was a dead cat in the tubing.. thanks
Bart should be my science teacher
Anyone else use to think it was called a Cadillac Converter? No? Just me?
No, but I used to think it was actually called cataract converter
This was very well explained. i dont know a thing about cars but i definitely learned something today, tysm!!
when your car gets a p0420 code....(Darth Vader voice)*NOOOOOOOOOOOOOOOOOOO*!
P0420 is just O2 sensor! No two thousand dollars out of pocket for you. Maybe a few hundred because sensors are a bit much, but not two grand!
@@lsswappedcessna nope.
P0420 is the O2 sensor telling you the cat isn't working. Throwing a couple hundred at a sensor only lightens your bank account.
An Amazing educational and fun channel for a Petrolhead kids, and adults too
Oh my gosh, your videos are so annoying. I can understand the enthusiasm and graphics but cranking the volume up is messed up.
How have I never seen this guy before he's hilarious.
Donut Media is awesome for learning stuff about cars, be it the history of the cars themselves or sciences and purposes behind things on the cars
If I don’t have a cat, I’ll go faster. If I go faster, my car won’t run as long.
Therefore, speeding is better for the environment.
🌈The more you know🌈
Drag
That was so well done. Informative enough, easily comprehendible and just enough cringe to make it entertaining without being uncomfortable..oh and I didn't mind that the host was giving off a sexy Richie Cunningham vibe.
I don't care about cars at all really, but this guy is funny. So I subbed
Please bring this show back
this is really informative i like how you guys actually do research and produce educational videos
Men you used very few words to explain what many spend the whole day in vain for you are a true teacher thanks for the video very educative .
Great video. Learned a lot. Love the humor. Keep it up guys! :)
Very informative with great humour .
man you teach stuff better than my chemistry teacher in A levels !!!! Donut for life :D
I really like these science garages
So happy you for to cut something open, no explosion but fun anyway. SCIENCE
You guys are really helping me out with my science project on vehicle emissions xD
Miss this Guy :(
Great host, great editing, and great scripts. Love the vidoes!
I could sit here all day watching these videos and I’m also gaining USEFUL KNOWLEDGE
Super cool video. you have catalyzed my conversion
This was very useful I just did a straight pipe to my car great video. As what gloves are you using there I do hvac wouldn't mind using a pair like that be safe bro
Amazing video! Thank you so much, helped me revise for my As chemistry exams.
You are so amazing at being engaging it's hilarious! I love this.