Purchase tools used in this video to dissect your own car parts: Angle Grinder (aka snap ring pliers): amzn.to/3nyCsVp (US) amzn.to/3hyoQFR (Canada) 3/8" Ratchet set: amzn.to/3hA7LLD (US) amzn.to/3zgHE2d (Canada) Screwdriver set: amzn.to/3tGeU1S (US) amzn.to/3hy4Z9G (Canada)
Please calculate the lowest frequency that can be reflected back and forth between the partitions. And then think about how high (or better how low) the frequencies are that have to be damped away in the rear silencer. Then you will see that the explanation in the video cannot work at all.
dude i love these videos so much i was just watching engineering explained's video on mufflers and then i was like "i wanna see the actual thing cut open i bet speedkar has done that" and you had and its beautiful
It is quite clear to me from this video that if you want a muffler that lasts a long time, use a toothbrush. Once I saw that, I knew this guy was legit. I'm subscribing!
Spend 5 minutes explaining the complexities of sound waves bouncing inside the chamber and how it's important to keep them pressurized, then suggests to drill a few holes to drain the water, lol
+VanillaSnake21 Yep Its one or the other With OEM mufflers though I don't think you need to drill a hole, the material is much better quality than aftermarket
But I don't understand the point of the suggestion, you're saying compromise the muffler and make it less effective in reducing noise as well as create a exhaust leak for what? Just to make sure the muffler doesn't rust? But at that point it's a garbage muffler anyway.
No you don't understand. A trade off for what? A trade off to keep the muffler longer? But what's the difference between a rust making a hole in the muffler or you? When you make holes in it you might as well throw it out anyways.
An 1/8 hole in the muffler aint gonna do shit to the noise you bellend but it will drain all the collected condensation out. Many exhausts have them as standard so give up trying to be a smartass.
Nice explanation , I've heard from my mechanic that if u start a car's engine don't shut it down straight away as the water vapour will condensate in the cold muffler and resonator , let it run for few minutes until the pipes become hot then water won't condensate and this will prevent it from rusting
Rust needs oxygen to form. The point of car engine is to consume the oxygen from air to burn fuel and emit exhaust gases that don't contain oxygen anymore. So how could the rust form when there is no oxygen?
Good job. Got the ideas across. Not unnecessarily technical. Actually looking at a real muffler was better than a chalkboard diagram. I didn't notice the toothbrush.
Very clear, informative and concise....and I like the 'used-toothbrush pointer' too. Where can I get one? I bet it's 'branded'🤣🤣🤣. Indeed a garage classroom! Have since subscribed for the 'classes'. 🫡👍🙌
speedkar99 in order for a mechanic to diagnose and replace, wouldn't he or she know how it should work first??? Unless you're someone who reads 710 where the oil goes in. Lol
180%? I think he meant 180 degrees. (2:55) But still nice video. The sound without the muffles was so cool, I didn't know all i had to do is saw the muffler off. :D
Thanks a lot sir! Making a homemade muffler/baffle system on a motorbike. I've done this before but I keep forgetting the basics! Lessons that I keep learning again and again! Hey! Just like that song lyric from Two Kevins by the band Cigar. Anyway, thanks again! Peace.
Reviewing this video again it would be really cool if you could fit like a Mitsubishi 3000GT muffler that has a little arm sticking out so you can force the little flap open with a Sport Button.
Hey drilling holes as you advice at the end to prevent rust and water accumulation wouldn't that equal to more noise ? as sound will exit through those holes instead of the chambers
But if you drew holes on the bottom will make the waves also go through them and will make a strange noise with the water.Also the temperature in muffler should be over 100 C degrees so the water will drain only if you stop the engine,am I right ?
speedkar99 Once the bottom are drilled with holes, will it cause back pressure drop, noise coming out and other impact? How many holes and how is the size are we talking here? Thanks in advance for the advise.
+dalphinus I think he's talking about pretty small holes...like 1/16" 0r 3/32" which won't make any difference soundwise. Most factory mufflers have small drain holes in them brand new.
Some of the terminology and explanation was a bit too crude but being an Acoustic Engineer who designs these reactive mufflers for mining dump trucks and a whole lot, I enjoyed youor video. However, I must add that the explanation at 2:19 is wrong. That connecting neck is not for exhaust gases to bypass the last chamber (however that inadvertently will happen), that is what is called a "Helmholtz Resonator". The volume of the second chamber and geometry of the connecting neck (among a lot of other factors) decides what is the resonant frequency of that 2nd chamber. The sound frequencies at and near the resonant frequency get attenuated due to helmholtz effect.
I have a dumb sence of humor. The belt squeal white smoke and water just made me laugh. Especially how u just cut off the vid and kept going after that
Cool. Thanks. 3 inch exhaust systems common? I've got a stove I made from scrap metal and was thinking of using old exhaust pipe and maybe even muffler in it if I could find it. i've seen some different stove systems that have a similar concept as the muffler with baffles and such.
Purchase tools used in this video to dissect your own car parts:
Angle Grinder (aka snap ring pliers):
amzn.to/3nyCsVp (US)
amzn.to/3hyoQFR (Canada)
3/8" Ratchet set:
amzn.to/3hA7LLD (US)
amzn.to/3zgHE2d (Canada)
Screwdriver set:
amzn.to/3tGeU1S (US)
amzn.to/3hy4Z9G (Canada)
Where’s the link for the toothbrush?
we need india
@@74nova36 Which one, orange or purple?
I can't decide. Maybe they come as a multi pack, that would save me having to choose..
Why are you posting this? Do they give you money if someone buys through the link?
The sound waves are 180 DEGREES out of phase, not 180 'percent'. It's not the same thing.
I love the way you throughly explained the muffler's function, but that toothbrush pointer just worked like a charm.
+rockerojuan thanks for the kind feedback
love the toothbrush pointer!
Mr. Toothbrush reminds you to brush your teeth three times a day.
David Bovee Dude, my exact thoughts
I was thinking the same thing...lol
pointer of a perfect teacher kkkkkkkkkkk...
Toothbrush pointer is the best
Surprising amount of engineering in what appears to be a simple component. This channel was a great find. Keep it up.
+Dylan Lewis Agreed, I didn't know myself there was so much to a muffler, especially the reverse flow design.
Very interesting, and informative work, speedkar 99.
It's a Toyota
I understood everything thanks to the toothbrush.
+Tony32 haha toothbrush superhero
That's the toothbrush of clear instruction. No educational video is complete without it.
Perhaps this video is sponsored by Oral B... Maybe?
LOL! That's great!
Much better than 'talking hands'...
I am a school physics teacher I will show this when I teach interference.Great job. Thanks
+Physics_rabbi Thanks I'm glad my video could help your class.
For best results, use a toothbrush to point
Firearm suppression is another relevant Application and easier to test variables on.
Please calculate the lowest frequency that can be reflected back and forth between the partitions. And then think about how high (or better how low) the frequencies are that have to be damped away in the rear silencer. Then you will see that the explanation in the video cannot work at all.
@@udarasamarasinghe8811 😂😂😂
Loved the sound of the muffler delete but was sad this video was so short. Love the lay man's explanation in a short video!
What an informative video! Clear well shot, very well described - and no fluff. Keep them coming boss
Thank you very much, clear and to the point is how it should be!
Can't believe such a lowly Corolla muffler has got so much engineering inside of it. Thank you very much sir!
+Dominic Fong I agree! I would have thought it was more simple
dude i love these videos so much i was just watching engineering explained's video on mufflers and then i was like "i wanna see the actual thing cut open i bet speedkar has done that" and you had and its beautiful
I am impressed with your physics explanations!
Thanks, glad you found it helpful.
It is quite clear to me from this video that if you want a muffler that lasts a long time, use a toothbrush. Once I saw that, I knew this guy was legit. I'm subscribing!
Haha
The toothbrush doubles the muffler life.
I love how you explain the sound wave with that tooth brush
+augy 183 Oh Yea... the toothbrush is the instructor now!
Toyota are so proud of the equipment they make that they put their name on stuff no one will ever see...Boss move!
* good vid 👍
That's because there's competition in the aftermarket so they want to stamp their name on it.
Excellent video as always from you. Great work uploaded.
+LearningZone thanks!
Great video. Hats off to the guy who volunteered his toothbrush for the pointer
usually, in this kind of videos I'm not expecting much physics and formulas! excellent job
+Masoud Rad thanks, your right a splash of theory is always good
Did not know there was that much engineering that went into a mufflers’ sound-cancelling calculations. Super cool. 🇨🇦👍🏼
When they do these kinds of calculations, they're targeting one specific RPM, and probably 2nd order harmonics.
Excellent video, this was something I've wondered about for a while, thank you for the efforts you've put into this video!
+Fadi Dan I'm glad you learned something
Quick concise and to the point. excellent editing job. thank you for not wasting my time
Glad you appreciate my work
Excellent video, never imagined all those chambers inside a muffler. Thanks.
I was quite intrigued as well
Toothbrush made me subscribe
+Alex McCoy Hah another vote for the toothbrush!
First rate video.
Clearly explained.
A lot of information.
Camera showed everything that needed to be seen.
Thank you.
+Roark Gill glad you enjoyed it. Thanks
It's 3 am in the morning, and I am watching this. Help me
+A B but why ?
Lmaaooo
That's pretty cool bro...
No it’s 3 am in the evening
Thats the cleanest Iv'e seen your brothers toothbrush since I began watching your channel.
Huh that sounded a lot nicer without the muffler.
I agree. I didn't expect a Corolla to sound this good. You should hear it now that I chopped the catalytic converter off!
speedkar99 According to AP, you will have the whole car into its constituent parts with 10 more videos.
Make me wanna cut off my muffler right now.
Mufflers stop the good sound but I think it’s illegal
Yeah, might grate a bit after a while though...
It's just baffling !
It is!
+Jim Jimm It doesn't resonate with you?
Further replies have been muffled ;) .
You've exhausted all the puns. . . . .
Pun-ishment is in order ;) .
Spend 5 minutes explaining the complexities of sound waves bouncing inside the chamber and how it's important to keep them pressurized, then suggests to drill a few holes to drain the water, lol
+VanillaSnake21 Yep
Its one or the other
With OEM mufflers though I don't think you need to drill a hole, the material is much better quality than aftermarket
But I don't understand the point of the suggestion, you're saying compromise the muffler and make it less effective in reducing noise as well as create a exhaust leak for what? Just to make sure the muffler doesn't rust? But at that point it's a garbage muffler anyway.
+VanillaSnake21 yea true. Its a trade off.
No you don't understand. A trade off for what? A trade off to keep the muffler longer? But what's the difference between a rust making a hole in the muffler or you? When you make holes in it you might as well throw it out anyways.
An 1/8 hole in the muffler aint gonna do shit to the noise you bellend but it will drain all the collected condensation out. Many exhausts have them as standard so give up trying to be a smartass.
This was very informative! Thanks for being so thorough!
Awesome thanks
Nice explanation , I've heard from my mechanic that if u start a car's engine don't shut it down straight away as the water vapour will condensate in the cold muffler and resonator , let it run for few minutes until the pipes become hot then water won't condensate and this will prevent it from rusting
Rust needs oxygen to form. The point of car engine is to consume the oxygen from air to burn fuel and emit exhaust gases that don't contain oxygen anymore. So how could the rust form when there is no oxygen?
@@charlieangkor8649 do you leave your engine running 24 hours a day 365 days a year? if not, there is oxygen and water in your exhaust system
@@charlieangkor8649 Yeah, how could an exhaust pipe get rust on it? Obviously, exhaust pipes never get rust on them.
Good job. Got the ideas across. Not unnecessarily technical. Actually looking at a real muffler was better than a chalkboard diagram. I didn't notice the toothbrush.
Glad you found it helpful
Very clear, informative and concise....and I like the 'used-toothbrush pointer' too. Where can I get one? I bet it's 'branded'🤣🤣🤣. Indeed a garage classroom! Have since subscribed for the 'classes'. 🫡👍🙌
The toothbrush is the best part! Thank you!
+Daniel Climent haha why the toothbrush?
Watching these videos could make me a qualified mechanic 👍
+Nick Makaia hmm
Mechanics don't chop stuff open or know how it works, they know how to diagnose and replace.
speedkar99 in order for a mechanic to diagnose and replace, wouldn't he or she know how it should work first??? Unless you're someone who reads 710 where the oil goes in. Lol
nice pointer bro..reminded me to brush my muffler before bed!😂
+Luis Gordillo gotta keep it clean!
This was more informative than I thought it’d be
Glad you learned how mufflers work
Toothbrush pointer makes clear explanation.i learned a lot
Thanks to Your Toothbrush I clearly Understand everything,, keep it up
I'm glad my brothers contribution was recognized
@@speedkar99 at least you didn't scrub the toilet with it. 🤤
Very good video, the creator went through all the trouble to help us explore the inside of a muffler. Thumbs up both here and by clicking!
Thanks
The Corolla sounds awesome!
Loved the video, it was very informative while still being entertaining.
Glad you enjoyed it. I don't know whats so humorous though...
I understood it all..... The toothbrush was a great teacher.....
Glad it helped
Best channel..u r as good as Chris fix channel
+TheRouteShow thanks. Why do you say that about him?
Great explaining!!! Love the brush pointer 🤣
Me too 🤣
Subbed cause the dudes pointer was a heavily used toothbrush. And the info was pretty good too ;)
+Michael Yiannett haha thanks
If you drill holes in the muffler, you obstruct some of the design pressure for the muffler to work properly.
Don't drill holes in mufflers.
Agreed.
Drill holes in the muffler and put maybe screws or rivets of some sort if you so dare to..
@@TheRyadrian ...Yeah....microwave the ice cream then freeze it !
"So how move a tree that is in the perfect spot and growing very luscious, first dig it out, then put in back in"
The difference between 0:06 and 0:53 is incredible!
Thanks
Excellent clip just like the independent fog lights on the solara.
+Adam J Thanks! Have you tried the independent fog light mod?
speedkar99 yes on the 99 solara I did because of your awesome clip I crashed it miss my white 99 sle
I loved how you seemlessly transitioned from using the toothbrush in explaining the body of the muffler to using it to explain the science.
It's my sidekick
i like how u present the components of the video.. also the fact that u do it with a dead tooth brush: D ..kudos brother
+hybrids0ldier thanks and kudos
Love this, straight to the point.
I should section a straight pipe next then
i love it how he used the toothbrush as a pointer😂
I recently learnt about waves and this video was very helpful
+Menuka Ramanayake That is I'm glad it helped you put the theory into perspective.
Vocally I am reminded of Ross from Friends. When the toothbrush is used to explain the graph I see a muppet. Good video none the less!
Thanks haha
I don't know why, but the toothbrush helped me understand even better
Haha it sure helps
Great video bro! I wish more people made em like you!
Thanks. I'll have an updated video on this soon.
Awesome video. I did not like that harsh beep at the end. But other than that, very educational and cool.
Thanks for the feedback
Long over due vid. Anther great one to watch. Thanks
Thank you :)
180%? I think he meant 180 degrees. (2:55) But still nice video. The sound without the muffles was so cool, I didn't know all i had to do is saw the muffler off. :D
+antipoti thanks for the correction, your right.
I'm going over this accoustics stuff in my speech and hearing science class. Thanks for the detailed analysis.
Our teachers also not teach that much in deep
Thanks for this video!!🙏❤
Thanks very much. Great explanation. (It was better with the toothbrush than the screwdriver.)
Thanks
Excellent demostration, thank you so much.
Your one of a kind. Thank you for your work; and thank you for sharing.
Amazing! Thanks
Bravo good sir! Bravo, well explained and simply broken down.
+timo v Thanks for the compliment
Thanks a lot sir! Making a homemade muffler/baffle system on a motorbike. I've done this before but I keep forgetting the basics! Lessons that I keep learning again and again! Hey! Just like that song lyric from Two Kevins by the band Cigar. Anyway, thanks again! Peace.
Awesome! Glad you learned something
I was watching videos of Brandon's bloopers. That's how I ended up here, I guess a muffler has more meaning to life than Brandon!
left a 👍 for using a used up toothbrush as a pointer
Thanks
Interesting piece of calculated engineering. Can you imagine some people prefer their car with louder noises just to make them looks cool?
My brother is one of them
Toothbrush.
Brother's underwear
It works as a pointer stick though!
Very informative video chumlee
+Richie Hanley thanks
Sounds pretty good without the muffler !!!
+Mark N. Reprisal for a Corolla yes!
2:58 180 degrees out of phase, not 180 per cent. But a fascinating video and well explained. Thanks!
+MatchstalkMan yep thanks for the correction
Great video . Simple but useful
Thanks
Reviewing this video again it would be really cool if you could fit like a Mitsubishi 3000GT muffler that has a little arm sticking out so you can force the little flap open with a Sport Button.
+John that's cool!
I like how he is using an old toothbrush to point at these complex equations
I like the teach-brush too
You sound like beakers boss in The Muppets🙂🙂
Really good explanation
THAT'S WHY I LIKE THE COYOTE, HE BUYS THE THINGS FROM ACME ALREADY TO WORK!!
+PEPE LE PEW I miss loony toones
Thank you for this video, I was wondering how they worked. Great job
+goriman 750 Cool glad you learned something
Brilliant explanation, enjoyed that thanks.
Wonderful explanation 👍🏽👍🏽👍🏽👍🏽
Great job explaining
Thanks
I'm straight piping my Crown Vic for sure!
+The Ceiling Fan that would sound so cool with the v8
Thank you that was informative video how much lost me but I hung in there and now I am informed with knowledge that I can put to use thank you
Hey drilling holes as you advice at the end to prevent rust and water accumulation wouldn't that equal to more noise ? as sound will exit through those holes instead of the chambers
...and thanks for also teaching us the other uses of a used toothbrush
+Ray J haha of course a toothbrush can be used in many ways!
It’s actually quite amazing
Good vid, good explanation
Sure is
Great explanation dude. Subbed.
Thanks for subbing, check out my other videos for more!
I love how you used the tooth brush as a pointer
+angga pradana haha thanks
0:53 Race Car Moment...
+Lean Clorox Yes gotta love VVT-i
But if you drew holes on the bottom will make the waves also go through them and will make a strange noise with the water.Also the temperature in muffler should be over 100 C degrees so the water will drain only if you stop the engine,am I right ?
was thinking samething
Good point. And yes the idea would be to drain the water at standstill so it doesn't sit inside the muffler overnight.
speedkar99 Once the bottom are drilled with holes, will it cause back pressure drop, noise coming out and other impact?
How many holes and how is the size are we talking here?
Thanks in advance for the advise.
+dalphinus
I think he's talking about pretty small holes...like 1/16" 0r 3/32" which won't make any difference soundwise. Most factory mufflers have small drain holes in them brand new.
Good video. I appreciate that you explain the physics of it. How about explaining a resonator as well?
+Tripp M Thanks. I thought about cutting that but it isn't worth an entire video.
It's a very similar device. If I remember correctly, it's tuned to cancel 180° out of phase with common cruising RPM.
Some of the terminology and explanation was a bit too crude but being an Acoustic Engineer who designs these reactive mufflers for mining dump trucks and a whole lot, I enjoyed youor video.
However, I must add that the explanation at 2:19 is wrong. That connecting neck is not for exhaust gases to bypass the last chamber (however that inadvertently will happen), that is what is called a "Helmholtz Resonator". The volume of the second chamber and geometry of the connecting neck (among a lot of other factors) decides what is the resonant frequency of that 2nd chamber. The sound frequencies at and near the resonant frequency get attenuated due to helmholtz effect.
0:54 JDM bro !
😎🤣
You can also drill a hole in the fuel tank and it will last longer.
+Dell Griffith but you'll get bad fuel economy
speedkar99 And maybe an explosion some time
speedkar99 just drill a small hole and plug it up when u park it 👍 better Fuell economy 😉
Really appreciate your work
👏👏👏
Thanks
That beginning hahaha. I just fucking died
+HackMassacre what about it you like? Sound of a revving Corolla?
I have a dumb sence of humor. The belt squeal white smoke and water just made me laugh. Especially how u just cut off the vid and kept going after that
+HackMassacre haha thanks
"Drill holes in the bottom?" Wouldn't that make it much louder?
It was a joke
@@speedkar99 Man, I'm getting old
Cool. Thanks. 3 inch exhaust systems common? I've got a stove I made from scrap metal and was thinking of using old exhaust pipe and maybe even muffler in it if I could find it. i've seen some different stove systems that have a similar concept as the muffler with baffles and such.