Are Car Exhaust Crackles & Pops Fake?
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- เผยแพร่เมื่อ 7 ก.ย. 2024
- How Car Exhausts Make Crackles & Pops - Anti-Lag or Fake Sounds?
Are exhaust pops as bad as speaker sounds, geared CVTs, fake aero?
Veloster N vs Miata: Most Fun? - • Veloster N vs. 2019 Mi...
How do car exhausts make crackles and pops, and are these noises real or fake? Depending on the car, whether it's a Toyota Supra, Jaguar F-Type R, or Ford Mustang, the answer can be very different. The Hyundai Veloster N, for example, has an anti-lag system that causes those beautiful crackles & pops.
If a feature isn't functional and done for subjective benefit, does that make it fake? Are "geared" CVTs fake? Is fake aero acceptable? Is engine noise piped in through speakers acceptable? In this video we'll break down how exhaust crackles are made, and whether or not car enthusiasts should support this approach towards performance cars.
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A CVT that shifts fake gears is the dumbest thing a manufacturer can produce.
people are afraid of cvt. i tried to sell car with cvt transmission and every potencial buyer pass becouse of a cvt. everybody said that it dont change gears properly.
i think thats why they programed cvt to immitate auto gearbox.
ICo Hi, tx!
Yes, I get that people have to get used to it but that’s just what it is. A CVT enables the engine run at its optimal speed all the time. By adding artificial gears, that advantage is ruined and defies the whole purpose of a CVT. It’s a pitty the majority of the people don’t understand this and ‘want to hear it shift’.
From the manufacturers point of view: if you let the CVT imitate gears, why not install a regular gearbox then?
Its funny tho how EE says cvts started faking gears, when one of the first cvts - my 2001 audi a4 multitronic already did that and new cars started not having simulated gears
@@zDemoGODz the cvt trans is much older then that. Really old snowmobiles use a cvt trans. Heck even some old mini bikes did. Most go carts do. The theory is there. Those old ones wouldn't handle the power but the operation is there.
Yes it’s mind blowing, people want their geared cars to have so smooth of shifting (like on luxury cars, really using that torque converter and soft shift kits), but the wanting a jerking whiplash with literally the transmission that is designed to be smooth... Well, maybe they just need to ride with me to decide they don’t want whiplash, because that’s about how I shift my gears...
Hi Jason, you didn't mention a couple of things.
1. Historically pops and crackles used to occur due to the way a carburetor's venturi used to suck up excess fuel during throttle off engine rpm reductions. The excess fuel would cause such poor fuel combustion during engine deceleration that unburnt fuel and oxygen would ignite in the exhaust. You could lean out the idle fuel mixture to get rid of the pops, but the extra richness both helps with post shift throttle response and idle quality. Many sports cars from the 60's and 70's would pop and crackle during spirited driving gear shifts (manual transmission). Race cars with fast shifting transmissions had a different reason for their cracks and pops and this was due to how the ignition would be temporarily shut off during gear shifts, while the carburetor would still allow fuel and oxygen to be pumped through the engine (igniting in the exhaust).
2. When it comes to CVTs you might be surprised to find out that locking the gear ratio as often as possible and "faking" gear shifts actually improves efficiency of the CVT. This is due to the fact that there is additional friction and slippage whenever the belt/chain/cone/etc. is sliding up or down and changing gear ratios. Whenever the CVT remains at a fixed ratio, the lack of sliding improves the energy transfer efficiency (gains of more than 10% can be experienced during acceleration). Manufacturers looking for maximum efficiency have to balance the improvements locking the CVT to a constant ratio provides with the loss of efficiency resulting from operating the engine at a non-optimal rpm. Programming the CVT to "fake" between 6 and 10 gear ratios often provides the best efficiency overall. One additional challenge that this approach can cause is grooves wearing in the CVT sheaves. To work around this manufacturers often program CVTs to slightly vary the fixed gear ratios used from acceleration cycle to acceleration cycle.
So even my car is faking it? :( will it leave me one morming as well?
yes
Zibby H unfortunately, yes
at least she doesn't have plastic covers blocking her real holes like the Supra
@@jamdc2000 sometimes fake is sexier ;)
@DANK i drive a es 350 lol its on my channel for some stock revs
Imagine swapping out your headunit and your car goes from sounding like a v8 to a 4cyl LOL
i have the opposite problem, if i turn the radio off the 2cyl sound comes back and EWWWWW. :)
@FTF.Eli fiat panda 900 twin Air turbo 86hp, 80hp with cng. 10 euro for 300km. :)
@FTF.Eli Italy
@FTF.Eli eh I like the new challengers and I own a 2017 mustang gt, its not a bad car, once you put some work into it. I did an airaid cold air intake, and borla exhaust along with a custom staggered wheel setup. It sounds good, drives good, and gets surprisingly good gas milage for a v8 with a 6 speed manual. I average about 24-25mpg with normal driving, and if I baby it I can push close to 30mpg. My next steps are a ported intake manifold, and potentially porting the valves, also want to grab a ported throttle body. But as it sits now I dyno'd 426 at the wheels.
😂
Had a car that did this when engine braking and was complimented every time I got pulled over.
was it carbureted?
My fuel injected E30 also did that, at times.
i had a naturally aspirated fuel injected 13B RX-7 that did this while shifting when at wide-open throttle. LOUDLY 😊
@@Ac3sdg Do carbureted engines have a tendency to do that?
@@lsswappedcessna Fuel injected engines have the ability to completely stop fuel flow when you let off the throttle, so any pops and crackles due to fuel in the engine during deceleration are there on purpose. Carburetors just meter out fuel in relation to how much air is entering the engine, so they'll supply very little during deceleration since the throttle valve is closed but it's often still enough that pops and crackles are unavoidable.
It’s just some Rice Krispies and milk in the exhaust
The auto CC thinks they are saying crackles & pups
Now you know why they call them ricers.
Ricer Krispies
@@gggromay underrated comment
I would love to see a manual CVT that uses a big thrust lever to control the gear ratio
SAME!
I have thought the same exact thing! Mercedes made a design on their F1 car called "Dual-Action Steering" that made telescoping the steering wheel actively change the toe angle of the front wheels. The drivers learned to adopt it because it was faster, even tho it wasn't easy. I see no reason why a kind of "manual CVT" wouldn't be MORE difficult than a standard manual gearbox. If a talented driver can drive an 8 speed manual like a finely tuned piano than I'd love to see how they perform on a "Violin". "CVT's are boring!" he said as the whole field screamed by at racing engines that have been red-line....for the last 4 laps. I remember how "cute" and "boring" turbos were...until they were fast.
@@xBardcorex I see no reason it *would* be more difficult. A CVT gearbox can be controlled with a slider like an airplane throttle.
@@xBardcorex never heard of the dual action steering before, that sounds pretty cool and really difficult to use. I could imagine a race with manual cvts would be a game a chicken between you and your car to see how long you can keep it on redline before something gives, and only the most precise would be able to make it last the longest. It would be neat to see what sort of tricks people come up with to optimize it!
Why not a lever that gives you the ability to change the gear ratio to anything you want
Thanks for letting me join Jason! It was an honor to drive you in the Veloster N! Great video!
See you... in a couple hours! Haha, media drives! 😎 G. T. 500!
I love both your channels! You guys make a great Duo!
@@EngineeringExplained does it harm the engine when you dont have turbo engine and just force engine to make pops
@@nikolamilicevic5811 the change is less but with NA engine it does give inconsistent fuel i believe.
I'm a simple man. Make my lawn mower make pops and bangs and I'll enjoying mowing
You can do that yourself. Kill ignition while on high rpm/high load and right before the engine is about to die, turn on ignition and enjoy the loud bang!
@@hoxhaloo I think Chen is joking, making fun of that point of view...
@@commenterperson4481
How about souping up that tired mower, making it mow at 30 mph, with flames shooting out of the muffler? Gets the grass mowed in just 5 minutes.
LoL First time that happened on the lawn tractor, my gut liquefied. Thing went bang and I thought it done did the dumbass and failed on me.
@@hoxhaloo sometimes it dsnt work sometimes it even works at low rpm 😂😂
EE=have I convinced you?
Matt=no
EE=well that's great
Priceless
Given that they are friends, I won't be surprised if MM already has his minds fixed before listening to EE. EE can probably overwhelm someone with data...
As MM said: I'm a simple man.
You can finally move your hands without caring for the wheel! Phew...
Set them free!
I time my farts to the crackling and pops when I have passengers. Works like a charm!
You sick fuq
Lmao. Thanks for the laugh.
What about the smell tho 🤔
@@trillrifaxegrindor4411 it was a joke tho
Like how you time the farts and not when the car shifts. The car dictates when you fart.
However, if you don't get rid of the smell, they might think something is wrong with your car.
Engineering Explained: “Crackles and pops are fake”
Me: **Cancels my ak47 burble tune appointment**
Damn bruh, that's sad 😂😂😂😂😂
Haja-Noel Andriarimalala 😭
your turbo will thank you
Having worked on cars for years I often wondered if the pops and such were actually doing any damage to the engine or were caused by something that wasn't configured correctly. Thank you for explaining how they come to be and what their function is. As for liking them or not, give me the pure exhaust note of the engine without all the extra crap so I can hear what the engine is actually doing and I am happy.
Ah, I was posting the same thought. I wondered if it was a fad so owners get that Nitrous-burning Japanese car effect from the movies; imaging flames from the exhaust. I still wonder if it shortens valve or cat-conv life (the latter especially in non-turbo models).
@@mikep490it shouldn't lower the life of either valves or cat. Since the majority of the burning happens in the exhaust, I'd expect the exhaust gas/charge as it leaves the cylinder to be either colder or at least somewhat the same temperature in total, so the valve should be fine.
For the cat, it actually often (usually?) has elements in its chemistry that promotes retention of some of the excess oxygen that passes through for use later, indeed so that a sudden inflow of rich/unburnt fuel can still be handled.
In either case, it's very temporary, so not something that should overload either component.
the porsche system and the hyundai system sound like different ways to do the same thing. both aim to keep boost up to limit turbo lag.
German ones sound different
Steven W same excuse 😂
@@Wabeeninc The Pops from the old RS3 were Massive. Audi told on their website, that they fire a cylinder when the exhaust is open. It results in a massive bang and also keeps the turbo at speed.
The pops from the RS3 were in my opinion the best because: In Individual you can drive with the pops off, only loud as hell. With dynamic you get those pops. I drove it most time with the Individual. You got there nice and pure Inline 5 sound out of the engine.
What I hate when those crackles come when you let off the gas or such stuff.
But the Porsche one uses engine braking to keep the turbo spooling while Hyundai uses additional fuel. Can't help beeing an efficiency geek. I just hate wasting stuff.
Steven W : Yeah, that’s what they tell us. I’m thinking it’s straight out of the marketing department.
Finally, had a rough time making my friend understand this. Now I'll forward this link.
Give some, take some.
Have you considered listening to them?
(I'm sure at least one have advised you on your YT name...)
Haha nigaman
@@commenterperson4481 I didn't ask you
Thank you for the technical info on that I have been curious to what the heck that was all about. For fun I'm going to see if I can tune my ignition to give me a little crackle. High five on the video guys!
Me: No! No! No! My car crackles and pops because race car!
My car: Toyota Corolla 😂
What do you appreciate more: someone who is naturally beautiful, or someone with a ton of makeup and plastic surgery?
Same with cars. The fake aesthetics may do a great job mimicking something worthwhile, but you can never deny that it's just more special when something is already perfect in its purest form.
Exactly
Amen!
beauty is in the eye of the beholder anyway
But in the gen where there's tons of things going on about climate change and exhaust regulations, it's hard for manufacturers to make functional cool stuff.
The only reason faking is kinda fine on cars, because there's at least something instead of the soon upcoming absolute quiet cars
Comparing women to cars?
I always thought it was from too rich a a/f ratio and there’s unburnt fuel igniting in the exhaust
pretty sure thats why subarus crackle so much. especially turbo ones which are set up from factory to run rich in case a boost leak or something causes overboosting which can lead to running lean.. on the other side my old na legacy would crackle like none other but the spark plugs when pulled would never be covered in soot or anything so maybe were wrong
It was in real race cars , nowadays it is fake tune for family cars to feel racy .
@@driver46 Exactly! 💯
Usually it was/is only from time to time that those pops & bangs happen.
Nowadays on modern sports cars it is permanent and predictable...
It's ridiculous!
It's good seeing you and Matt having fun.
You sold me, I'm off to buy a shift noise and crackle and pop system for my Prius. ;)
Exhaust crackles are one of those things that are hard to publicly admit that you like, but deep down inside you press that button every morning on your way to work.
Working at an auto parts store, I can say I can do it right as I pull into work lmao
I hate it
LMAO right
Hi Jason. I want to say that since I was much younger in primary school, I remember seeing your videos and although I didn’t understand anything, I actually continued watching and pretended to understand to feel smart and to fulfil my appreciation for cars.
Now that I’m an adult, I want to congratulate you on your success and wish you all the best in the future.
When I have my kids and grandkids, I’m going to mention you as “The guy who knew so much about cars educated me so much, and that’s why I you and I are doing an oil change by ourselves today.”
Needs more cowbell!
Had a side exhaust on my honda, it started to drag, was shaped like a cowbell and sounded just like it.
Started caring around a cowbell and drum stick.
Made some people roll
Others would shake there head 🤣
dont fear the reaper
Exhaust pops put there pants on one leg at a time just like you, but then they make gold records!
I honestly didn’t know people liked that sound, I couldn’t disagree more, even when it has purpose. The first time I noticed it on a stock new car I just thought they had a serious engine problem. Well maybe one day it will grow on me, but until then I hope y’all enjoy yourselves 👍🏼👍🏼
I agree!
It sounds ridiculous on modern sports cars...
It's so predictable...
All fake!
I love the crackles and pops in my Veloster n! I need more crackle though, lol.
I'm an old guy - and did lots of tuning in my earlier years. 'Muffler Explosions' were a bad thing in my day - meant you needed a tune-up, probably carb adjustment or rebuild, or you had an exhaust leak or hole in your muffler :)
ever do keybangers? always fun to pull those shenanigans on unsuspecting pedestrians. (in case keybanger is a regional term; put er in neutral, cut the engine, pump the pedal three-four times, either dump the clutch to bump start it, or turn it on with the key).
In recent generations both sporty cars and motorcycles have gone to considerable effort to enhance intake noise, giving the pilot a satisfying engine sound w/o creating as much noise from the exhaust.
And my Triumph Speed Triple makes the hands down world's best off-throttle crackle with an Arrow exhaust and a tune.
Interesting. I'd like to know if the cracks and pops can happen "naturally" when an engine is revved high (especially higher performance engines). My suspicion is that as soon as you let off the throttle, there is still unspent fuel in the cylinder being post-ignited due to high compression, heat, fuel mixture, etc. I'm inclined to think that this might happen (or is more likely to happen) with high-octane fuel (and thus higher performance engines) due to the longer-burning properties of the fuel.
At the start of the month i visited an event with old cars driving on a racetrack (newest car was from 82) and lots of those old cars had crackles and pops. None of them had a modern enough ignition to do what Jason explained in the video. Unless someone would change ignition timing mechanically when the driver gets off the throttle. (which i doubt because the car wouldn't run on idle and it would mean lot's of work and finding something that can do that for no purpose whatsoever.)
@@nirfz True. I'd imagine that the cracks and pops on older cars are due to the fact that most carburetors are fairly inefficient compared to fuel injection. Just spitballing, and now that I think about it...letting off the throttle quickly after a high rev in any set up will likely cause a rich mixture for a moment or two. In turn, the conditions are ripe for those cracks and pops early in the exhaust system.
I have a 2020 WRX stage 1+ that gurgles and pops like crazy when downshifting, especially when it’s cold. I can tell by my access port that it happens more if the car pulls timing (it’s always been within safe parameters). It’s my first project car that hasn’t had a V8 and I must say…I LOVE IT! It’s by far THE most fun vehicle I’ve ever had.
Love this collab. Jag has some really good crackles and pops as well
Jason: "I don't like faking things"
Me: "Ah, your a man of culture as well"
I feel as though with downsizing engines and lower redlines (in general), pops and crackles can inject a bit of character back into an engine. The difference in timing, volume and frequency seem to differ a lot between cars, and give a little personality back!
For me it sound that they are going too far on the downsizing
Well there's no reason to make v8s that are big and heavy when a turbo inline 6 or 4 takes up half the room and makes just as much if not more hp and torque.
No, turbo 4 cyl don't even come CLOSE to a Torque and HP from a V8.
A V6 turbo on the other hand do surpass a V8.
But this is the deal, go too far.
Downsize is good and OK, but not to go too far to make 3 Cylinder to work as hard as a V6 and 4 cylinder as a V8.
1300l people would much rather have a big v8 for drag racing and stuff like that the ls has amazing torque on the low end paired with a supercharger or turbo their beasts but no one wants to hear bees in a can cough bmw
@@jmoore112344 Why not just turbo the V8
The best pops and crackles come from the two-strokes
Glory to Arstotzka! Cap
Glory to Arstotzka! Fr, I got my two stroke dirtbike to shoot hella flames
death to kolechia and the best ones come from those crazy tuned drag racing cars with giant turbos and a richer mixture than fkin scrooge mcduck, sounds like a war before the launch
Long live ring dingers.
It was my understanding that crackles and pops are caused by the temperature difference of exhaust and outside air. Also its more common with a wider diameter exhaust because when letting off the throttle, much less gasses are being forced out and outside air is so much colder that it causes expansion of the hot gasses inside the exhaust system. I was surprised they didn't talk about this but maybe both are true?
What are you saying? If that is how it works then any campfire would be banging unbearably loud.
🧐 Two important ideas were overlooked in this video 🧐
1. There is another type of crackle & pop that naturally occurs in cars running a rich A/F ratio. In this case, timing isn't delayed, & the exhaust valve isn't left open. Instead, because there is excess gasoline that isn't burnt, it ignites in the exhaust manifold when it comes in contact with atmospheric pressure & temperature. In my opinion, this is the best type of pop & crackle! Unlike the burble-tunes, it's unpredictable, which adds to the fun. The, legendary, Ferarri F40 is an excellent example of this!
2. Another pro of leaving the exhaust valve open on deceleration is that the additional flow of air and fuel into the exhaust manifold warms the catalytic converter quicker!
"we like the sound of pops and crackles" No we fkn don't, not everyone has the mentality of a 16 year old revving the nuts off his straight piped civic at 2am on Walmart's parking lot.
My 1979 Datsun 310 popped too with magnificent explosive backfires every time I let off the accelerator. The torrent of seething booms, plus the James Bond like plume of geysering steam from a leaky head gasket, I have to say added to the car’s personality. Great video as always!
I've also noticed that many of the dual clutch cars do this, as well as make really strange noises (almost like a fart) on upshift. I've always wanted to better understand the engineering behind that.
It’ll sometimes do that even without closing the throttle completely to make the shift quickly. When the DSG requests a shift, it happens so quickly that closing the throttle and waiting for the intake to empty, letting the turbo slowing down makes it feel slower, and the shift would take longer. So the timing retard happens for a few strokes as the clutches swap during the shift. Actually the fuel doesn’t necessarily cut fuel because that makes NOx emissions harder to control, a fuel cut fills the catalyst with oxygen and it will take several seconds to get NOx emissions to spike a lot. After fuel return the ECM needs to run rich for a bit until the catalyst is back to normal, so within the constraints of emissions it may make sense to leave the fuel on.
The Porsche anti-lag system works, as you say by keeping the throttle open but cutting of the fuel on lift off. HOWEVER with the sports exhaust in Sport mode (but not in normal or Sport +) they, effectively disable the anti lag and use the Veloster approach to get the pops and crackles. I have to say that does rather offend my engineering sensibilities.
The fact that they can serve a purpose in terms of performance is awesome. But I honestly would never complain about my car having crackles and pops from factory, I would think they’re badass for that 😂
If you remove the rear muffler and lift off (but not completely), in most cars you will probably be able to hear the excess fuel burning in the pipes and crackling, but it's much more subtle.
My 94 Civic does this. Sounds pretty rad even though it's just an old Civic. xD
I don't know why but Specially love this episode. Its alil different from what I used to see or hear from EE.
Thank you, happy to hear it! Sometimes I’ll get a lot of backlash for trying something out, but better to try new stuff than remain the same stale grump forever haha. :)
Porsche’s gas pedal is also to control the amount of fuel that it’s being injected into the cylinders besides controlling the amount of air just like in the Diesel engine where you only control the amount of fuel that you’re injecting into the cylinders by pressing the gas pedal. That’s how diesel throttling works. And Petrol throttling works by controlling the amount of air going to the cylinders by pressing the gas pedal and opening the throttle body. So Porsche decided to use the gas pedal as control both air and fuel as well like in the diésel engine.
Good discussion. I personally don't like artificially induced exhaust crackles. I'd probably avoid buying a car because of it.
Most that have it, you can turn it off
To me crackles always sound like the engine is mistuned, like there's something wrong with your car that you should probably fix at some point.
This video generally confirms my prejudice
Omg! SubaruW... I mean Matt, love the mash up.
I have a 1990 Miata with a Megasquirt ECU in it, and over the summer I played with the tune to see if I could get some nice pops and bangs out of it. To do it, I picked a few cells in the spark table where load was low and RPMs were high and set the spark timing to -5 degrees - that is, 5 degrees AFTER TDC, and added some extra fuel in those cells as well. The extra unburned fuel and fresh air in the exhaust stream allowed for some pretty nice pops. I'm not sure if there's a way to tweak spark timing based on TPSdot, but that is probably how it's implemented in production cars. I also own a 2017 Focus RS, and it gives off pops and bangs pretty consistently in sport mode with that pattern of throttle input.
Does crackles have a negative impact (lifetime) on the catalytic converter?
Thats a good question. For the most part the ignition should have happened early enough that the fuel is basically burned up. And its not an actual backfire where the full force of the burn is open to the exhaust.
MostlyClaudy not if you’re catless
In cars that are heavily modified and tuned to have anti-lag usually people remove cats.
Meow
@@dorsalispenile9891 woof
I've driven Alfa Romeo's for many years and two of them were the 33 model. I fitted both of them with group N rally exhausts and the boxer engines crackled and popped on the overrun. I think the main reason for the noise was the very long primary pipes coming off the heads. There was nothing artificial about the noise coming out of them!
On a SUD it's the carbies loading the inlet runner walls with liquid fuel at high load. Quick throttle lift and you now have very low air flow but still have all that extra liquid fuel. The mixture spikes rich for a moment, way beyond what the timing advance and low energy ignition can ignite properly.
My 98 GTV V6 which is probably one of the first generation drive by wire cars on the road crackles, pops and bangs on overrun. The exhaust does need to be hot from a hard driving session though
I put a straight-through exhaust on my N55 BMW (among other bolt ons) and it burbles when I let off the gas and even when shifting if the throttle position is right. The MHD tune has a setting for this but I have it off because I also don’t like fake stuff, but my burbles are real.
8:49 METRO SPOTTED
Oh man, I clearly remember the first time I heard a F-type going nuts. That got me hooked and now I love it. It has to be spontaneous bangs and pops; a consistent amount, and volume, of pops sounds too fake.
I find The Straight Pipes’ Jakob and Yuri’s comparison of M-performance cars and M-cars really accurate and reflective of my opinion. They preferred the M-cars due to the spontaneity of the exhaust bangs. It is all about how realistic or functional things sound to me. Thus, I hate fake sound played through the speakers and I absolutely hate fake vents. Fake vents devalue the look of a beautiful car like the Supra with cheap black plastic. Makes it tough to clean well too!
Thanks for the video guys!
Hey Jason, amazing video as always. Loved how you kept notes throughout the whole video!
Just a comment, you might want to mic Matt too next time. He's a bit hard to hear sometimes, specially compared to how clear your voice sounds. It's not too bad, but could be better.
And that's the reason I bought my Veloster N. The exhaust sounds and pops. I freaking love driving my car.
As far as the Hyundai method, I wonder how the late combustion treats the catalytic converters. Additionally, I wonder how much additional fuel it would burn.
As far as the styling, sound injection, and CVT shifts, I would say it is a matter of preference. I do wish car manufacturers offered a feature to disable the shift simulation, as it hurts efficiency and likely the lifespan of the transmission.
i wonder more how/if it changes the lifespan of the turbocharger, the catalytic converter is after the turbo(s).
Well, in a normal car, in correct conditions when you let off the gas on vehicle deceleration, the injectors shut off until vehicle is close to stop or you get back on accelerator. With Hyundais feature, this will keep injectors running a little longer. Is it detrimental to the economy and emmisions certifications in the US? Probably not.
Instead of fake exhaust sounds from speakers they should implement active noise cancelling.
Majority of car companies have forgotten what it is they wants in a sports car. I believe the only company that stays true to the roots is Porsche but that's just my opinion
Discussed Porsche in this video as well! They have an interesting take on engine management during lift off, for turbocharged models. :)
They do with the 911 and its various versions. The rest is crap, especially those hideous SUVs. But also the new Taycan, which is waaay to heavy, even for an electric car... not to mention, an ostensibly sporty electric car.
But they have to pay the bills somehow... from that perspective Porsche isn't really unique. There are plenty of other brands that have one or two good sports cars which they try to keep good.
And bmw they have been putting inline 6s and v8 in their cars for decades
I would love to hear you have a conversation with Brian cox, you seem like similar people on different spectrums of professions, as in physics and engineering
STOP signs: are we jokes to you?!
I drive a 2008 Honda Civic FN2 Type-r with a 2,5inch stainless exhaust.
It crackles and pops, A LOT! (and I love it)
Arvid Gréen nice I got a 13 FB6 Si FBO and tuned that pops when shifting and when I let off
Snap, crackle and pop belongs in your bowl of Rice Crispies and the exhausts of high-compression, big-cammed, naturally-aspirated engines.
Don’t forget the RX7 💥💥💥
The Veloster N is a relatively new car. The Fiat 500 Abarth was popping and crackling since 2012. Unlike many, they used a full flow exhaust with no muffling. My 2012 does not always pop, but it does crackle just like it's much older sibling, my 1977 Fiat 124 Spider which also has a full flow exhaust.
My 5.9 ram 2500 with an open manifold definatley says it's real😂
Interestingly I have a carburated motorcycle and it does pop and crackle a lot (like all carburated motorcycles and most cars). Basically every time you are not on the throttle the thing pops like crazy. It gets less if you turn down the idle speed. The reason why it pops and crackles is because the carburators always draw a small bit of air and fuel into the cylinder because the throttle never fully closes because of well... idle. Some interesting observations I made are: when I turn down idle all the way the thing obviously won't pop anymore on decelleration but will also not run if you stop. However, if you roll on the throttle really gently say for example at full lean at an apex, most of the time it does one loud bang, followed by a bunch of crackles that get less the more throttle you apply until they are completely gone at about 2% throttle and the engine sounds like a normal engine under load. The loud bang at the beginning is probably because the carbs are still not fully closed and draw in a tiny amount of air and fuel that is to little to get ignited but that collects in the exhaust and when you open the throttle it ignites all that unburned mixture in the exhaust. However, I am honestly not totally sure why it pops and crackles other than that. Is it because it also draws in to little mixture to properly ignite it but "once in a while" a piston does properly ignite and then burns the mixture of the other cylinders in the exhaust?
"I'm EE - and I'm MM and we're going for a drive!"
eh
That's the sound of cars. From the outside, eeeEEuuuu. From inside, nnmmmMMMMMM
Audi had this Multitronic CVT Gearbox back in 1999 for a few model years in the A6 and A4. Once in the market, the mainly old customers complained of the strange feeling without shifting. So they also started later to program in artificial gear shifts. The older folks still complaining and the people who wanted the CVT because of the seamless feel scared away, it was just going down and the Multitronic died out slowly.
When I heard that Ford was introducing the engine sound into the cab of the F150, all I could think of was a Traxxas Slash with the speaker that you could install to make it sound like an engine. I'd say it's more childish. If the exhaust doesn't have an actual backfire, then why have it as an augmentation? For the less than 1% of car owners that want the sound?
I drive EcoBoost f150s regularly, and especially with the 3.5, I can tell they're pumping v8 noises into the cabin through the speakers
The burbling is not meant to mimic backfiring. Two completely different things.
1968 Jeepster Commando. Buick V-6. short exhaust pipes with cherry bomb mufflers. timing set at 12* btdc. everytime you took yer foot off the gas, crackles and pops. going down steep hills in second gear produced a sound like a war.
yes they are fake and they sound like ricer bs. they are cause by fuel overrun. Good tuners like Jeremy from FasterProms tune that out because it is inefficient.
But brother , we crave the pops and crackles
@@Wabeeninc lol. good point :)
Every time my Giulia does it I smile. Given it's turbocharged, I'm glad to hear to may be serving a real purpose :)
Or not...
Those pops & bangs on modern sports cars are artificial...
but there are other ways to keep the turbo spooling without the inefficient "crackles and pops", right?
I'm generally against any "fake" stuff in cars. Shifting CVTs, fake engine noise, etc.
Pressure release system maybe? Have a system that collects and pressurises exhaust gas and at low rpm it spins up the exhaust side
Look up how modern F1 powertrain works
One of my favorite noises is hearing a rally car popping and crackling in the distance after flying past your point of view. Literally orgasmic. I don’t know who wouldn’t like that noise.
I love the crackle too. The i30n is the most characterful hatch I've driven because of the noise it makes.
Super fun car!
This is such an amazing back-and-forth that speaks to my own internal arguments of Function>Form vs. "just enjoy the ride"
When i go around corners i like to make a screeching sound :)
i have a 1991 miata with a megasquirt ECU, i wanted to create more crackling on over run. i went into the target AFR table and made the cells that were in the over run area richer (AFR 12:1) .(by over run area i mean the cells over 3K rpm at zero load). to my surprise it did not increase the cracking. then i tried the opposite i made the cells in this area really lean (AFR 17:1) this worked nice. more crackles.i think this crackling has always been there, modern dual mode exhaust systems seem to show it more.
No fake noise. I took out the sound tube from my ND. Also put in sound deadning.
I enjoy the videos and think you generally have good information and make extra effort to be fair and accurate. I know you deal with modern automotive technology, but I do wish you would you would occasionally note/mention that something's were different or not applicable to pre-computerized cars. I have been told several times 'facts' novices learned on TH-cam that they assume have always applied. This is a good example... my 1970s truck with a stock factory engine designed in the 50s makes a lot of these sounds naturally as a limit of the technology of the time. Performance based- no, purposeful added- no, cool- yes.
Less a complaint and more a thought for tge future.
my old volvo used to make rice crispies when i let off when i wasnt running a muffler.
the fuel pressure reg was bad though.
Which volvo did you have?
@@ogloc6308 that one was a 91 740
Before that I had an 86 740. Both turbo
Have a Saturn ion doing the same thing. I might want to check that then
My motorcycle does that. In my case, it's due to secondary air injection. The purpose is to help burn any unburned fuel in the exhaust for emissions. Actually pops flames out the back. Cross plane inline 4 with that crackle/pop is like heaven in your ears.
Your smiles are great. SO NICE ! THanks for this video.
This is weird
It's like you're watching 2 really well mannered horses.
@@SoulTouchMusic93 This getting weirder lol
@@Abdullah..S welcome..... To other world, the chosen, Macaw!
😂😂😂
Most people don’t know but in the new 10th gen civics 1.5t have the same kinda weird Anti-lag system to prevent turbo lag. You don’t notice because the stock exhaust is so quite but if you remove muffler and resonator it crackles and pops a lot
Any engine noise generated by speakers is nonsense.
ronindebeatrice there’s too much nonsense in a industry that should be dominated with no nonsense
I only know like one or two cars with actual speakers (bmw i8) . The rest, as far as I can tell, just funnel the sound through some channels into the cabin, like the a pillars. What other cars use speakers?
@@2010ngojo Ford's doing it too at least. I believe the ecoboost mustang and Focus RS.
I love the cracks and pops. Not only do I love the sound now and then, I also find it useful for example, when someone is on my tail or driving too close behind me and not letting up, I will switch my BMW X3 M40i into Sport Plus mode and let off a barrage of pops and crackles like warning shots and without fail, they back up. So I think sometimes, it can be useful in a way.
Sorry, I just find it more unnecessary "ricer-boi" noise, like when the exhaust manifold is cracked and makes popping noises on decel. Performance doesn't need to be obnoxious.
Hello from PCNA
The Porsche cars with the Sports setting turned on and the Exhaust valves open do indeed produce pops and crackles when letting off the gas. The crackles and pops do not occur outside of sports mode. I'm not sure if this applies to the NA vehicles but for the Turbo vehicles this does apply
Can you do a video explaining upshift sounds on autos, DCT, DSG, PDK? like the one you hear after hard accelerations
Ayoub Naguib pretty sure it's unburnt fule being ignited between shifts.
I recall Jason covering this in one of his previous videos.
It’s the same thing no? The ECU will cut the throttle very, very briefly on an upshift
Baron von Teuchter well I think that sound or the throttle cut isn’t necessary, but manufacturers use various methods such as cutting spark while keeping the injectors firing to produce the sound now associated with such shifting. Some cars don’t do that, and I recall Jason’s 720s acceleration video where the car doesn’t make that iconic sound.
I went to Le Mans in 1978. The slow cars were the ones making all the blam. blam, pop, pop noise. Turbo whine seemed to be the noisiest thing on the Martini-Porsches and Alpine-Renaults.
Never thought I’d see the day when EE and MitsubishiEvofan did a collab.
I bought an nSRT-4 right out of University back in 2004 - it burbled & popped, first couple seconds off-throttle. It also did WOT b00st-hold between gears. That Jag definitely WASN’T the first *production* car to ‘make noise’ off-throttle.
I’m sure the SRT-4 wasn’t first either (I still have the car BTW, and it’s still a riot!) “The First” was likely some older, spicy carbureted model - and anybody’s guess.
EE pls do vid on the long term effects of this on the cats we all want to know.
eventually it will negatively impact the cats
I have an 05 Canyon with a 5 cylinder automatic. I made it have a nice deep throaty crackle and pop during decel. It's a melow bark. I love it! I tuned it to 8° during decel so it's not dumping raw fuel into my cats, and I turned off the DFCO.
I just noticed you drove right by my relatives house up in the Stevenson mountains.
The Volvo V70R and S60R models had the pop n crackle when launched and US buyers complained. They altered engine management software to takenit away and then all the other markets complained that it was gone.
The problem is that they are over-doing it.
No, they're not. That's why the Veloster N has custom settings for the exhaust so you can change how loud you want it to be as you drive.
It helps keep the turbo spooled and burns the extra fuel left over when you lift the throttle. It also sounds great! I love the sound of my 2019 SS 1LE when I leave it in gear to engine brake. It sounds wonderful!
I must know everything you know about motors
Careful, youll have to learn differential equations then.
If it means I can take other drivers to gapplebees then so be it
Jacob Burskey What are differential equations?
BeastlyJ they are the equations used to figure out what gear ratio is needed for a diff
@@CBRMovementss haha nice one!
BMW uses their valvetronic and vanos for valve overlap at full valve lift to perform the function of a diverter valve, which also results in extra exhaust noises.
I dont like shooting flames through my turbo.
Why not?
@@jimmyschock9395 Wear on the turbo.
@@mick1189 thats not hurting the turbo at all the turbine wheel is designed for it
No expert here, but shouldn't be "shooting flames" most of the time. This situation only occurs for a brief instant when you let off the throttle. Any manufacturer "blipping" the fuel to create added pressure in the exhaust (and thus the turbo) will certainly have built the turbo to handle it.
jimmy schock - tell that to the destroyed turbine and no boost generation
Crackles and pops are fundamental in modern cars, especially when downsizing left a lot of fun cars with 4 or even 3 pot engines that without some "fakery" either in the engine or in the exhaust make up for that lack of engine noise, especially combined with modern particulate filters