IMPORTANT NOTE! For completeness, you should include downforce when calculating the power to overcome rolling resistance (thus the equation would be Crr*(N+Downforce)*V. That said, I used a high estimate for coefficient of rolling resistance, meaning the actual rolling resistance could be significantly less (not accounting for downforce). Additionally, rolling resistance is very minimal in comparison to aero (about 3% in this case). Rolling resistance does not have a huge impact on the final result. Ideally, for a top speed vehicle, you don't want significant lift or downforce. Just enough downforce to keep it stable and prevent lift, but not much more. Adding downforce at speed means greatly increasing the amount of aero drag to overcome. The Veyron adjusts active aero to reduce downforce (and simultaneously drag) in top speed mode.
@patw52pb1
7 жыл бұрын
+Engineering Explained (with a space) Good catch, I wondered how long it would take you to detect the missing factor. ;)
@okniceguy
7 жыл бұрын
Engineering Explained it's not like i understood all this anyway, but thanks for honesty.
@overlordsweg8399
7 жыл бұрын
Engineering Explained
@Grumpy_old_Boot
7 жыл бұрын
On a sidenote, didn't you just calculate the rolling resistance for *one* wheel ? There's 4 of them after all. :D That said, it wouldn't make a big difference even then, the aerodynamic drag is where most of the power goes to die.
@lionemessi
7 жыл бұрын
lol i was thinking you didnt account for it. but didnt you say it was in top speed mode. i assumed you took downforce into that calculation
@mrbanyaditse
5 жыл бұрын
Engineering explained: why no production car has reached 300mph Bugatti Chiron: hold my beer..
@BassLegendYT
5 жыл бұрын
On god bruh
@vipalpha8699
5 жыл бұрын
yes bby
@tasshuffler8905
7 жыл бұрын
You know, I'm not really sure why I'm subbed to this channel, because I can't understand 95% of what you're saying
@EngineeringExplained
7 жыл бұрын
Oh no! What specific parts were confusing? I have additional videos braking down some of the details which aren't fully explained here. Also, if math isn't your thing, this Wednesday's video is going to be super neat!
@tasshuffler8905
7 жыл бұрын
Engineering Explained It's just the math/sciencey things. I think it's more of a case of the classic "it's not you, it's me" Having said that I still have learnt a lot from this channel, so thank you for that :)
@IgorBosiljcic
7 жыл бұрын
Could electric cars reach 300 mph?
@radicallybean
7 жыл бұрын
TasShuffler I thought I was the only one
@LimitlessBandzz
7 жыл бұрын
TasShuffler. Same thing here every video is a bloody university lecture. This guy expecting us to know every word that comes out of his mouth
@MatthewTaylor3
7 жыл бұрын
Jason needs to hold my beer, while I go start my Honda and show him how it's done
@EngineeringExplained
7 жыл бұрын
Can't promise your beer will be here when you get back, but then again the likelihood of you coming back sounds poor.
@gat1817
7 жыл бұрын
eM that Vtec got ya back bro
@Georgeeph
7 жыл бұрын
He's not talking about lawn mowers he's talking about cars lol.
@Georgeeph
7 жыл бұрын
(Face Palm) i'am dealing with rice burners, get a real car before you talk to me, at least a GTR is acceptable compared to your little Honda DX hatch back.
@Georgeeph
7 жыл бұрын
Matthew Taylor the Honda hatch back was a better car.
@Just_That_Guy910
5 жыл бұрын
Who’s here from the new video where Bugatti goes 304 mph
@Icemann336
5 жыл бұрын
Im here from the tweet he posted earlier.
@uhhhhhhhhhhhhhhhhhhhhhhhhh8833
5 жыл бұрын
Right here, still crying 😭😭😭
@okietc1889
5 жыл бұрын
Tony Ferguson it’s not a Production car.
@positrondecresente
4 жыл бұрын
@F-zero91maru well, not in real life
@Arctic222Avenger
7 жыл бұрын
Actually, people that use metric system dream bigger - 500 km/h baby!
@michaell1199
7 жыл бұрын
Like your profile pic
@wyattgibson808
7 жыл бұрын
Arctic Avenger 500 km/h you say... Just wait for the devel sixteen with 5000 hp which as been determined that it should reach around 300 mph
@DeiHarper9361
7 жыл бұрын
MAUIKINGS I doubt it will ever happen.
@SuperKasseler
7 жыл бұрын
That car is not real. As there is not even a glimpse of its show of power or speed.
@RBXGT2
7 жыл бұрын
Devel Sixteen? Had a laugh, thanks.
@tranhv68
7 жыл бұрын
Just saw an article on road and track that references your analysis. One of the writers was impressed enough to reference your video. Nice analysis.
@Rob-fx2dw
7 жыл бұрын
That's interesting - R & T sometimes have good stuff
@Le_Poilu
7 жыл бұрын
1st production car to break 300mph might be an electric one. It would need less cooling (but still need it...). Maybe with some king of big condensator it could overcome the need of very powerful batteries, at least when it comes to reach the top speed (not maintain it) And thanks to the better acceleration of electric motors it could do it faster
@Downhill1337
7 жыл бұрын
Best joke i've heared in a while
@joshkiej6601
7 жыл бұрын
pretty much impossible, since you would need gearing in the motor because they get too warm after 10000 rpm and they won't have enough torque to get there unless you get a giant unusuably heavy motor
@mantouism
7 жыл бұрын
electric motor at high speed is less effective at acclerating than ICE
@Le_Poilu
7 жыл бұрын
Yeah ... so how did some student make it ? en.wikipedia.org/wiki/Buckeye_Bullet 341MPH for electric vehicul as land speed record (later Venturi set a 342 MPH record) Buckeye bullet did 314 with a motor of only 400HP in 2004 With the improvement made since, I don't see why we wouldn't ne able to see an electric production car that can that fast You can have electric motor and gearing ;)
@andydavies8232
7 жыл бұрын
Le_Poilu It would be cool to see a video comparing the efficiency of electric vs petrol/gas powered cars. How good they are in turning the energy stored in batteries and liquid fuel into kinetic motion if the car. It appears from the sleek designs of electric production cars they that require less cooling and so I would assume are more efficient. I wouldn't be surprised if there was to be a production car to break the 300mph mark that it would be a powerful hybrid.
@Klockorino
7 жыл бұрын
Wrong. When VTEC kicks in it'll hit 350 mph in under 3.7 seconds. I would know, I have a V6 Honda so I have two extra cylinders of VTEC yo!!
@cameronnguyen7076
7 жыл бұрын
Klockorino yes, but do you have a fake carbon hood that adds 100hp and an array of stickers where each sticker adds 10hp?
@Klockorino
7 жыл бұрын
Ooo I ooO no, but I have a backwards facing roof scoop and a broken door lock yo!!
@benfriede7034
7 жыл бұрын
Klockorino My Honda Civic has a huge spoiler on the back of it, my friends say it's backwards but I know they are just messing around, and it produces 200 extra hp and I have camber on all four wheels creating more downforce and hp. I creamed an Enzo in a street race last week!
@drx1xym154
7 жыл бұрын
blue VTECs are the best!
@justinhall5544
7 жыл бұрын
that's nothing my car has additional racing stripes.. worth 50mph for each one!
@Shady_2144
5 жыл бұрын
This video is 2 years old but guess what, Bugatti did it! They’ve hit 300 mph!
@phantommedia9964
5 жыл бұрын
Abhay Karthik ayeee nice avatar, another guy with an LFA avatar lol
@Shady_2144
5 жыл бұрын
PHANTOM MEDIA - Cars, RCs, and Lego Technic that V10 to me is one of the best things that this Planet 🌏 was ever graced with.
@najilabubackershajahan5839
4 жыл бұрын
Guess what ssc broke that
@sharkz5123
3 жыл бұрын
@@najilabubackershajahan5839 turns out it didnt :)
@sharkz5123
3 жыл бұрын
@Achim Anscheidt yeah, but not for too long ;)
@joesustrikes4998
7 жыл бұрын
Can you do a video on why 4-cylinder cars make that farting sound?
@seklerek
7 жыл бұрын
what farting sound?
@teunje
7 жыл бұрын
not enough boom boom
@Quetzalcoatl0
7 жыл бұрын
it's not the cylinder count but the volume of the engine. You can experiment this by firing a small firework and a large one.
@Mr.M1STER
7 жыл бұрын
Joesus Trikes I can tell you why you make "that farting sound". Too many tacos bro.
@HenkkaWRC
7 жыл бұрын
Lol. That's simply because of the fart can muffler. What affects the sound: Exhaust componenets: The diameter and lenght of the different exhaust components. (Unequal lenght headers make any car sound like boxer) Crankshaft: cross-plane vs. flat-plane Valves and camshaft: Aggressive cams and big valves make any car sound angry (Google: Vtec killer cams)
@captainharlock1149
7 жыл бұрын
my head hurts
@carl8790
7 жыл бұрын
Captain Harlock Good. That means you're learning :p
@ashleyjohansson230
7 жыл бұрын
Head only hurts when you are learning useless information you don't need lmao
@AndreiIR000
7 жыл бұрын
"no pain no gain"
7 жыл бұрын
+Ashley Johnasson.. Which this info is useless to most people, so I can understand a hurt head
@GashimahironChl
7 жыл бұрын
Huh... math. Hope i don't pop a blood vessel.
@camco7829
5 жыл бұрын
Youll probably never see this but, as of today, sept 1 2019 a chiron hit 300
@kanisksingh
5 жыл бұрын
It hit 304mph on August 2 itself. They just revealed that today.
@dbclass4075
5 жыл бұрын
This video is two years old.
@uhhhhhhhhhhhhhhhhhhhhhhhhh8833
5 жыл бұрын
Just saw it, still crying 😭😭😭
@ez45
7 жыл бұрын
Duh, at 88mph you'll need 1.21 Gigawatts.
@lolzordje123
7 жыл бұрын
Nathan unknown 1.21 niggahwatts
7 жыл бұрын
the term "duh" and "gigawatts" probably shouldnt ever go together.. Probably because 99.9% of people dont even know what a gigawatt is LOL. I bet like Thomas Fooji said, more people are familiar with Niggawatts!
@brunixbrogamer9852
7 жыл бұрын
this fucken idiots dont get tha phrase
@breezyjr
7 жыл бұрын
I get it..
7 жыл бұрын
It is obviously from BTTF, but I was just saying regardless of the reference how it is not so obvious to many people LOL.. Probably because many millennial's have no clue about the phrase(or movie)
@xj52sfishyworld86
5 жыл бұрын
Bugatti hit +300 mph on August 2 2019
@nxxm9507
5 жыл бұрын
*september*
@Deb_Eternity
5 жыл бұрын
@@nxxm9507 It was uploaded on September but the record was set in August... Verifying the records & stuff took up time before they could make it public...
@grandmasteryoda9893
5 жыл бұрын
@@Deb_Eternity stil rs is the on top. bugatti chiron ss is not a production car and did run only way.
@Deb_Eternity
5 жыл бұрын
@@grandmasteryoda9893 I really don't care, lol... Bugatti to me is about art and beauty, not speed... Koenigsegg cars are nice but they don't spark the same joy in me as Bugatti does for me...
@Fravadeve
5 жыл бұрын
This video is 2 YEARS OLD
@JPandCompany
7 жыл бұрын
No cars have hit 300mph because they haven't let me drive those big boys yet!
@chatoperez8931
7 жыл бұрын
JP & Co. lmao tru
@DouglasGardnerTV
7 жыл бұрын
cars have hit 300, in fact a car hit 760mph. Just not a production car...
@OndreaS123
7 жыл бұрын
top fuel & top alcohol cars are not production for the road, nor are they readily available to consumers to drive on the street. the Bugatti are, but at a very expensive price that's out of the budget of 99.99999% of buyers... thus truly exotic.
@ryanschneider5311
7 жыл бұрын
JP & Co. lol they have like 8000hp yo and weigh nothing. You funnyyyyy
@ciciro6
7 жыл бұрын
Ryan Schneider. a slow top fuel car runs for about 4.5 seconds on power then gets rebuilt.
@SlevinCCX
7 жыл бұрын
Tires? Probably tires.
@Viizzai-os
7 жыл бұрын
a nice set of tires can get that honda up to 300mph
@yareyaredawa
7 жыл бұрын
Viizzai Slicks ... on a civic.
@ananthakrishnan573
7 жыл бұрын
...and a fartcan
@misterbuklau4053
7 жыл бұрын
No you need a vtec engine and wait till it kicks in
@krus180
7 жыл бұрын
Some airless thick hard rubber slicks should do
@foodclubbing3705
5 жыл бұрын
Couple of quick facts before you start to roast him 1. the car is way lower than the standard chiron it is using harder and lower springs tuned for a very slow movements of the body you can see that the car is way lower than standard chiron like 30-40mm 2. the car is not a production car but lighter , stiffer, and way more sleek with less drag than normal car and in these speeds the drag coefficient is one of the most important things, the power output is officially 1600hp but many people think is closer to 2000hp because at the rate of which is gaining speed over 240mph compared to veyron ss, and we cant forget that bugatti was beaten by koenigsegg last year in top sped land record, so its about the pride bugatti was doing everything they can to put the record back , 3. the tires were specially made by michel and they were using 12 times x ray scan to check any misperfections . This car is maybe somewhere around 1700kg with drag 0,31-0,33 based on experienced guess and we can only wonder how much horsepower so i dont see any problem they were waiting until the air was at its least density and speed. the car had longer gear ratios for higher speed it was specially built and tuned for one day for one run and for one purpose there are still secrets we will not know like if it had radio,speakers, trunk and etc they most likely shed all of the weight away so it will be as fast as possible. SO HE IS STILL RIGHT IN HIS VIDEO HE JUST SAID THAT THESE ARE THE REASON WHY NOT ANY PRODUCTION CAR HAS GONE 300MPH TO THAT DATE. Peace.
@Tippotipo
5 жыл бұрын
The new Chiron version is also in the final phase of production so this video is obsolete.
@187Blondie
5 жыл бұрын
Tippotipo yup, its a Chiron Super Sport & soon Buggati will be able to legit brag its toppers at 300+ 😚
@Thunfischkilla
7 жыл бұрын
included metric data, very nice! thumbs up :D
@harikishore2514
5 жыл бұрын
Bugatti Chiron: give me 3 millions.
@CarsSimplified
7 жыл бұрын
What's most impressive about production supercars aiming for these high numbers is the amount of motor vehicle regulations they have to overcome to get there.
@rohanmore1774
7 жыл бұрын
All of ur videos are really interesting and highly informative coupled with apt description of yours !!! Way to go Brother 😎☺☺
@EngineeringExplained
7 жыл бұрын
Thanks!
@GrimFaceHunter
7 жыл бұрын
Could those 3000 hp be used to overcome aerodynamic drag trough application of Meredith effect? As i read on it, in some cases it can create trust that is greater than the drag and possibly make a car even faster. Wikipedia claims it was done on P-51 Mustang.
@TheEsseboy
7 жыл бұрын
Very interesting! But as a road car already is really out of internal space i see it hard to achieve without making the car an extra 3-4 feet longer :P
@CweamyDumpter
7 жыл бұрын
So this is what it would have been like if I had paid attention in math class....(let me edit this since apparently Physics isn't math according to the comments) I guess I should have paid more attention in Physics, Math, and Science class.
@andrejkostovski8023
7 жыл бұрын
math?
@dann5480
7 жыл бұрын
Andrej Kostovski leave the poor guy alone, he probably doesn't even know what physics means.
@armadillito
7 жыл бұрын
Mir Daniyal applied maths, mostly.
@CweamyDumpter
7 жыл бұрын
Armadillito thanks, I thought using the general term math would be okay, but obviously physics is it's own thing and has nothing to do with math.
@CweamyDumpter
7 жыл бұрын
Andrej Kostovski yes. He's doing mathematics. Doesn't matter if it's in the name of physics. It's still math.
@bluedreamz5946
5 жыл бұрын
Not anymore.. Chiron broke the 300mph barrier
@lukahalamic149
5 жыл бұрын
True
@sebastiaomendonca1477
5 жыл бұрын
While not a production car (yet), im fully expecting this face lifted Chiron to turn into the Chiron Supersport
@pedrocunha3965
5 жыл бұрын
Bugatti 2019: Now that we have tires you owe us a new explanation
@angelgjr1999
7 жыл бұрын
Why are there no production cars that have a turbine engine?
@HatsuneM1ku01
7 жыл бұрын
Angel Gutierrez because efficiency would be a problem. Even the biggest fuel tank on a normal production car would run dry before you left your street
@Jodelorakel
7 жыл бұрын
Angel Gutierrez Jaguar actally made a prototype. But without air-air heat exchanger, which is too big for a car, thermals efficiency peaks at about 23%. That is inferior to a good reciprocating engine.
@angelgjr1999
7 жыл бұрын
Jodelorakel Oh. Could we make a semi with a turbine engine?
@GagandeepSinghTaggar
7 жыл бұрын
Angel Gutierrez there is Motorcycle with turbine engine Y2K. it has top speed is more than 250 MPH. about car, Chrysler made some cars with turbine engines way back in Sixties, I think in 63-64 but were scrapped due to many technical problems
@angelgjr1999
7 жыл бұрын
gagan deep Cool. Imagine 30 years from now cars running on fission energy like in fallout 4!
@joraforever9899
7 жыл бұрын
At how many rpm will the tyres spin at 300 mph?
@dann5480
7 жыл бұрын
JoraForever depends upon the radius of the wheel, give me a number and I'll tell you.
@mohammadchehadde8963
7 жыл бұрын
Mir Daniyal thats a nice question lets say 20"
@adriananzano2292
7 жыл бұрын
Mohammad Chehadde most cars today top out at 9000 rpm, they would have to make one that exceeds 10000
@johngreen7161
7 жыл бұрын
Mohammad Chehadde 5,044.59 rpm roughly at 20" radius
@adriananzano2292
7 жыл бұрын
Mohammad Chehadde plus, the transmission needs to have a gear that has a gear ratio that allows for over 300 mph
@Tyler3209
7 жыл бұрын
I don't know if he says this during the video but it's a need thing for the most part. There is no demand for it. To make a powerful enough engine and car to make 300 miles an hour you will need to spend a lot of money for development. And when would you ever go that fast? Even on a closed track there usually isn't enough straightaway to get to that speed. If someone spent the money to develop that nobody would buy it. Also to reduce the drag enough to make that speed the car would probably be an ugly bullet shape, which would add to the fact that nobody will ever buy it.
@timonxDlol
7 жыл бұрын
all bugattis are sold, but the company bugatti doesnt make money. its more like a hobby of vw. And the chiron has a lower top speed than the veyron. so the people didnt buy it only for the top speed.
@B58J
7 жыл бұрын
Anonnymouse Hacker ive hard rumours that it can hit 285-290
@DouglasGardnerTV
7 жыл бұрын
well the chiron is getting close. 280mph..
@crackedemerald4930
7 жыл бұрын
bullet shapes look awesome but I think are no good for safety
@e36pico5
7 жыл бұрын
Pedro Rocha no one who would buy a car capable of 300mph is really is really going to be concerned about safety
@theguywhotrolledyou
5 жыл бұрын
Who is here after Bugatti breaks this record...!!!!
@zmanmd1641
7 жыл бұрын
Of the three factors listed, tires is the hardest one to overcome. There are several racing engine builders who can create a reliable 2000+ hp engine. Any number of sports cars are aerodynamic enough to reach reach 300 mph, even with the added down force and heat dissipation requirements. However, there are no readily available tires which can tolerate the heat and centrifugal forces generated at 300 mph. The Veyron and Chiron are both tire limited, with VW easily able to get more HP from that 8 litter W-16 if needed. Think of that engine as being four 2.0 liter engines with a common crank. The highest output production 2.0 liter engines today exceed 350 hp. Racing spec 2.0 liters regularly exceed 600 hp. So four 2.0 liter engines combined should be able to produce at least 1400 hp and with tuning reach the needed 2000 hp. Funny cars and top fuel dragsters regularly exceed 300 mph in the 1/4 mile, however they are only at that speed for a couple of seconds. A production car cannot reach that speed in under 5 seconds, so instead it will need several miles of road surface to reach 300 mph. That longer distance will build up massive heat in the tires that would deteriorate the materials, like putting a blow torch on the tires while lifting an elephant with them. As the heat builds, the rubber would deform until the tires disintegrate in an explosion. The resulting crash would be spectacular to say the least.
@kareldekleine9509
7 жыл бұрын
Cocaïne is a hell of a drug
@patw52pb1
7 жыл бұрын
Just ask Eric Clapton...
@paulherman2130
7 жыл бұрын
Why doesn't the downforce matter when computing the rolling resistance? I'd assume that the normal force changes because of it as N = G + Downforce.
@EngineeringExplained
7 жыл бұрын
+Paul Herman should have included it, but idk what it is. In top speed mode, the car is set up to reduce downforce and thus reduce drag.
@brianbethune574
7 жыл бұрын
Your equation for air resistance has it varying as to the square of velocity.When you put the actual numbers in the equation you cube the velocity.I believe this is correct.
@nickkharchenko2489
5 жыл бұрын
The Chiron hit 304mph a couple of hours ago so just delete your vid ;)
@dbclass4075
5 жыл бұрын
This video is two years old. Still worth to remain posted, as it discuss the technical challenges Chiron has to face in great detail.
@BassLegendYT
5 жыл бұрын
@@dbclass4075 No need to bash this video just bcs Chiron hit 304. He was right from his points and its greater detail to what you'll ever get
@Modsnake98
5 жыл бұрын
The Chiron that hit 304 was heavily modified bia engine, new tail section, cooling upgrades and specialty tires so still not a “Production” vehicle.
@shawnshan9817
5 жыл бұрын
@@Modsnake98 It is a production vehicle as long as it was manufactured and tuned by the same company. Previous record holder, Agera RS also was not a standard Agera, and had tune put in by Koeniggsegg along with a different aero
@drdoomgoat38
5 жыл бұрын
@@Modsnake98 They can just replicate it to make the Chiron SS and sell 25 examples at $6 million
@Richard-md3gi
7 жыл бұрын
if you used electricity youd only need 1.21 gigawatts to go back in time
@jonkoxl2069
7 жыл бұрын
Richard and 88 mph
@stevendensmore4646
7 жыл бұрын
Richard and a jew
@HABO2210
7 жыл бұрын
ONE POINT TWENTY ONE GIGAWATTS !!!
@mrigankrajeev
7 жыл бұрын
one point two one.. ;) not twenty one
@seven9766
6 жыл бұрын
Mrigank Rajeev You did not get it.
@TUCOtheratt
7 жыл бұрын
Interesting video. I didn't hear you mention one thing however, how fast a car can go on public highways (not legally I'm talking physics) I've been for a ride at 155 MPH on an American interstate highway in a corvette and I can tell you the driver heeded both lanes to keep the car on the road. Every shallow dip in the pavement felt like a jump on a dirt bike. It would take a specially engineered road (like an airport runway or the Bonneville Salt Flats) to keep a car stable at 300 mph.
@redtoaster8475
7 жыл бұрын
Just go to the top gear vid where james hit 417km/h .Thats a good place to start
@Car_Mo
6 жыл бұрын
OK, so not american roads .... but that kinda goes without saying.
@lorenzo259812
7 жыл бұрын
did you learn all the stuff you know in college or did you have to do a lot AF research
@EngineeringExplained
7 жыл бұрын
Most videos require a significant amount of research. I did go to school for mechanical engineering, but it's not always as relevant as I'd like. For this video, it certainly provides the equations, but honestly I had a tough time with physics in college. Once it stepped into the electromagnetic world, it was difficult to follow for me.
@lorenzo259812
7 жыл бұрын
thanks because I'm going to college for mechanical engineering next year and I just wanted to know
@acruzp
7 жыл бұрын
You will learn all these things, especially if you ask a lot of questions and take your courses seriously. You can also partake in stuff like FSAE, Solar Car Racing, Human Powered, Eco Marathon and the like if you're into vehicles and the sort of stuff you see in this channel.
@bathong188
7 жыл бұрын
Me too!
@retreadz6971
7 жыл бұрын
In a different video or comment somewhere Jason mentioned "Physics for Gearheads" as a good aid for a lot of this stuff. I picked up a copy and am going through it for the third time and it honestly helped a ton with keeping up with some of the details in his videos. I certainly enjoyed them prior, but they are even more interesting now.
@asteroidsonsteroids271
7 жыл бұрын
What am I missing here about the 3000HP of heat? Where does that power come from? Why isn't the power of the heat loss equal to the 15% of inefficiency in the engine? Is the engine really making 4500HP but with 2/3 of it in a non usable form of heat?
@EngineeringExplained
7 жыл бұрын
Correct. The engine is generating around 4500 HP, but only able to convert 1/3 into useful work. That's why electric cars are the future, internal combustion engines are inherently super inefficient.
@asteroidsonsteroids271
7 жыл бұрын
Wow. I never knew that about internal combustion engines, I only ever knew of the ~15% efficiency loss and nothing more. That's extraordinarily wasteful. I have even more reason to save up for an electric car now.
@MrChanPhysics
7 жыл бұрын
The 15% is not the efficiency loss of the engine, it refers to the drivetrain losses (gearbox, bearings, etc.). The overall efficiency of a typical gas engine is around 25-27%, but that's at normal driving conditions. Most of the loss is due to thermodynamic limits (2nd Law of Thermodynamics). Electric motors are around 80%+ efficient overall, so require much less total power and cooling.
@asteroidsonsteroids271
7 жыл бұрын
So are the drivetrain losses just due to friction? Or I guess maybe work used to move those parts is work that's not spinning the wheels.
@broncokonco
7 жыл бұрын
Yeah, even assuming absolutely no losses (carnot engine) a heat engine can only operate at around 70% efficiency, and it is physically impossible to reach anything higher. This is due to the second law of thermodynamics, so yeah, to reach higher efficiency, something other than an heat engine must be used.
@ms90sbabyy
5 жыл бұрын
I’m from the future...it’s Bugatti of course
@theDigited
5 жыл бұрын
For all the kids in the comments: 1. This video was posted two years ago and explains tech challenge of going 300 mph. 2. This video is called "Why has no production car hit 300 mph?" at the moment of publication of this video, two years ago. 3. This video is called "Why has no production car hit 300 mph?" and the title is still valid, because the "Chiron" that did 304.77 mph has different body, engine, aero and tires, is a prototype, and is not either a road certified or production car yet, and has to do 300+ run both ways before it's valid.
@melvinrembet7438
4 жыл бұрын
And i read somewhere tagt they made 30 of them and sold 2
@andy42x
7 жыл бұрын
this dude is thorough.
@joaosoares3719
7 жыл бұрын
That 300mph record will obviously come from an electric car with a transmission...
@tannerstift1489
7 жыл бұрын
João Soares you will see 300mph before that. itll be a bit before its a productuon car record but there are street cars knocking on 283 right now. mind you... they didnt top out at 283 mph... it just did it in one mike and didnt keep excelerating. there are around 8 KNOWN street cars that have done over 275 in one mile.
@Kaisuke971
7 жыл бұрын
The Chiron SS might hit that already
@michaelbuckers
7 жыл бұрын
Electric cars don't need transmission - transmission trades over speed for torque, with power on the input and on the output remaining the same. Electric engine, not limited in maximum speed, doesn't need to trade torque for more speed. Producing high torque at low speed is the same as producing low torque at high speed, mechanical power on the output will be the same, and electric power drain on the input will also be the same. Suppose you drive an electric motor at 100% voltage, it runs at 100% speed. If you load it by 50%, then speed drops to 50%, and torque increases to match the load to 50%, and so does the current drain. If you had put a 2:1 gearbox between motor and load, then speed would only drop to 75%, and torque (and drain) would only increase to 25%. Without the gearbox, output speed is 50% and torque is 50%, but with the gearbox, it's 37.5% speed and 50% torque. With the gearbox, output power is actually lower, by 25% (2500 vs 1875). And with the gearbox, electric power drain is also lower, also by 25%. The gearbox didn't improve anything. In fact, you could've achieved same result by simply lowering voltage by 25%. There is no difference for electric motor, to pull harder or to spin faster. And real life gearbox will add drivetrain losses, weight and costs, which could be avoided.
@envyit112
7 жыл бұрын
think outside the box, put contact patches on the road that recharge the cars as they drive using solar power. like the old RC racetracks from back in the day. boom endless power right trans endless top speed the hardest part would be making it stay on the road and not come apart at them speeds
@joaosoares3719
7 жыл бұрын
Mi 28 "Electric cars don't need transmissions". Normal ones don't, evidently, but if you want to hit 300mph on one and still be able to drive it around town you definitely need a transmission.
@ryansk9
7 жыл бұрын
This guy is smart
@aidan5256
7 жыл бұрын
Microage No it doesn't.
@bmac2455
7 жыл бұрын
That's 1795... Which is also correct.
@MicroageHD
7 жыл бұрын
Ahhh, i see. Thank you. It just really looked like a 2 :)
@sacr3
5 жыл бұрын
This video is an example that math and reality are very different beasts. No one can cover every aspect of reality via Mathematics and calculations, there are always areas that can't be seen. People who do these calculations and then act cocky afterwards about their intellectual prowess make me giggle a bit. People who do these calculations and then admit that they clearly don't have all the variables and could be wrong - earn my respect. The beginning to the pursuit of real knowledge is "I don't know". Bugatti, 304mph, beast
@Muskar2
5 жыл бұрын
Agreed that there's always some variables that are unaccounted for but it's just as easy to dismiss the power of math by saying "it's not 100% accurate so why not just wing it?" which I'd argue is often worse than being overconfident about well-reflected results
@sacr3
5 жыл бұрын
@@Muskar2 No one said "Wing it" or implied as such, but one has to accept that when dealing with things this complex, math won't be the "final answer". Its more of a way to estimate what you will be expecting. So i'm not against this i'm just bothered when folks act like their math IS the only conclusive answer, of course until its not.
@Muskar2
5 жыл бұрын
@@sacr3 I know plenty of people (especially my oldest brother) who dismiss math as "high horse", "ivory tower", "arrogant" and often implying that theoretical knowledge is not empirical. And frankly I think they're often channeling other frustrations in life and just using it as a scapegoat because the power of prediction can be frustrating when you feel powerless with your troubles and unable to grasp math's utility at the same time. I think the misunderstanding between me and you is that we view this comment section differently - it seems like you take high ownership of your reply and take my remarks as a comment on your personal views or behavior. But I was replying to the group of people whom I think can identify with (and like) what you're saying but isn't actually making any comments. And I don't understand why you oppose to exposing both extremes. I think both aspects of this are good insights. I find math is broadly undervalued (perhaps not by Jason's audience though). And the predictive power of math and physics especially. Yet I still agree very much with you that you also have to respect its limits. If you're an experimental or pragmatic person you'll figure this out quite quickly. And also how true "the more you know, the less you know" is.
@Talalpro_1
7 жыл бұрын
me:MOM CAN I USE YOUR HONDA CVIC mom:YES BUT BUY ME PEPSI me:Ok MOm THX honda cvic fires up:BBBBRRRRMMMMMMMMOMMOMOMOOMOOMOMOMOMMOMOOM*crash* me:NoOoOoOoOo the end
@ArtemLokhovitskiy
7 жыл бұрын
Talal Gamer said dude with camaro on profile picture:)
@kimberlyware6854
6 жыл бұрын
Talal Gamer what?
@threelui3062
5 жыл бұрын
Bugatti: Hold my beer
@hammadbhat3010
7 жыл бұрын
Watching this video is like watching a Tutorial for Entrance Exams. Feel
@939Batze
5 жыл бұрын
BUGATTI DID IT!! 307 MPH! 490 KM/H
@J117-x7l
7 жыл бұрын
Its so obvious, bassically the reason why production cars cant make the 300mph mark is because the heat exchanger will need extra cooling after every jigawat which you will need 1800hp and so that cause the transmiter to pruduce more power to the crank with is more to the wheels but without the transplum it will create to much drag and we want less drag and the liquid transplum is so rare that only a sertain amount of car will hit crowd because he didint went to space so now he will die and reach tomorrow without everyone that is eating right now so now nobody cant walk simple as that.
@NeGraVity40
6 жыл бұрын
I love your admitted change of heart to the escalade’s drag coefficient, actually had me lol
@Zerohearts0
5 жыл бұрын
Bugatti:hold my beer “hits over 300mph” Jason: well then
@Ihelpanytime
7 жыл бұрын
Toyota Prius can hit 300 mph while falling off a plane.
@WilsonTexasRager
7 жыл бұрын
It was good comment and joke I like it. At the same time terminal velocity won't even let that happen.
@mkp1214
7 жыл бұрын
Nope terminal velocity is 120mph, mean that the only way to go faster on either is with an extra force on top of gravity
@isosk1229
7 жыл бұрын
my civic will hit 400 mph while climbing the Everest.
@chadw8272
6 жыл бұрын
no it wont
@jamesscharf9334
7 жыл бұрын
Would the added down force created by the car traveling at speed add to the amount of rolling resistance to the tires ?
@EngineeringExplained
7 жыл бұрын
Yes!
@jamesscharf9334
7 жыл бұрын
Could this be ballparked with the traditional racing equation of every 100lbs +/- = roughly +/- 10 hp at the wheels?
@posadist681
7 жыл бұрын
this is interesting
@yubertuber1
7 жыл бұрын
What did he say?
@AndreiIR000
7 жыл бұрын
he said "no"
@Ihelpanytime
7 жыл бұрын
Andrei Rînea That's what she said.
@6rimR3ap3r
7 жыл бұрын
Now it makes a lot more sense when Koenigsegg says the Regera has about ~2% less power loss because of the "direct drive" instead of a normal gearbox. 2% doesn't sound much in terms of top speed or acceleration, but definitely on horsepower numbers that high, the needed cooling and related cooling drag. Thanks for that video :-)
@minhkhangtran6948
5 жыл бұрын
So, in summary, if you want to make a production car that could go over 300mph, either: 1. You make a production-able, street legal, and relatively "cheap" engine with over 2000hp, that won't need constant repairment every 1000 km or so. 2. Massively reduce the drag coefficent, one way is that you literally putting on an optional overheat mode, the same way a drag car would be set up to accelerate as hard as it can, onto a production car, so that it could reach that speed for but a moment until it needed to end to prevent further engine damage. 3. Finding way to make a good production tires that could endure all those heat and G. Or somehow be able to cool the tire from inside out, so that it would be able to go on for alot longer (like somehow putting the equivalent of liquid nitrogen onto the inlaid of the wheel and let the centrifugal force carried it onto the rim, and then into the wheel).
@sebastiaomendonca1477
5 жыл бұрын
Bugatti just did it
@bigthecat1808
7 жыл бұрын
Not to brag but, I hit over 300 mph in NFS Rivals with the McLaren so😉.
@bandzupdaniel2
5 жыл бұрын
me: watches video after bugatti just passed 300 mph
@tmb1750
7 жыл бұрын
make a 300 mph electric car. it wouldn't need as much cooling drag.
@brunixbrogamer9852
7 жыл бұрын
actually you woulda need a pretty big fucken battery weighing 2 tons
@WilsonTexasRager
7 жыл бұрын
Actually heat has a lot to do with the electric engines too especially on the battery. Also like this other guy said batteries get heavy. I went to the TT in 2015 and talked briefly with one of the swedish engineers that worked on one of their electric bikes there. The course is something like 32 miles and the charge is completely drained with top speed of around 190 mph and average 118 mph, or so on the electric bike. He also commented on the heat after that single lap and how the battery had to be taken off to cool and replaced if it was to go again immediately. Top speeds now break 200mph on race bikes and average 133.4 from the top rider now.
@jakeaustin901
7 жыл бұрын
BrunixBROGamer not if you only get up to 300 once :)
@srinitaaigaura
7 жыл бұрын
Actually they do. Electric powertrains run at a much lower temperature than an ICE so they're far less efficient at radiating away their heat. They'll absolutely suffer in hot tropical summers. This means the cooling systems have to be sized up considerably until they're on par with the Bugatti Chiron's. This channel had covererd that in another video.
@srinitaaigaura
7 жыл бұрын
Actually they do. Electric powertrains run at a much lower temperature than an ICE so they're far less efficient at radiating away their heat. They'll absolutely suffer in hot tropical summers. This means the cooling systems have to be sized up considerably until they're on par with the Bugatti Chiron's. This channel had covererd that in another video.
@Mr.Exquisite
7 жыл бұрын
THANK YOU so much for including the metric system in your calculations! Finally, someone got it that outside the US the imperial system is used much less... :D
@nate4745
7 жыл бұрын
I understood about 75% of that, generally, and it was quite interesting. I do like your videos.
@mattabesta
7 жыл бұрын
So would it theoretically be much easier to make an EV that can do 300mph?
@patthonsirilim5739
7 жыл бұрын
yep since you can just make e cars into condom shape great for air penetration since there no need for a radiator
@BasuSatwik
7 жыл бұрын
Goldmattress not yet. batteries will overheat at the rate of discharge.
@Kaisuke971
7 жыл бұрын
yeah if the batteries didn't succ
@domenicoflorianrescigno4377
7 жыл бұрын
what's about a f1 car with no wings?
@L1TTLEH0RN666
7 жыл бұрын
Domenico Florian Rescigno sounds like death
@domenicoflorianrescigno4377
7 жыл бұрын
L1TTLEH0RN666 it would still have the downforce of the rear diffuser
@BirdiesGoCherp
7 жыл бұрын
Domenico Florian Rescigno He's talking about production cars.
@domenicoflorianrescigno4377
7 жыл бұрын
Khaled Hossam I know, I was just wondering :)
@BirdiesGoCherp
7 жыл бұрын
Domenico Florian Rescigno ahh
@gogo8965
5 жыл бұрын
Your thumbnail just got outdated
@raidateir4473
5 жыл бұрын
Could you please make a video analysing the posted record by Chiron today. Does it mean that Bugatti is underestimating the amount of horsepower that the test car actually had, or they were able to improve drag significantly by using the long-tail? Obviously, if their cars are producing circa 1600hp on 93 octane, they would easily squeeze 1800+hp with ethanol
@raidateir4473
4 жыл бұрын
@amarjit singh your answer is not related whatsoever to my question
@anthonyteichroeb917
7 жыл бұрын
I suspected that cooling was the achillies heel, but did not expect anywhere near that degree. Well done! Very informative
@Arif_163_
5 жыл бұрын
Well! The chiron just did!!!!
@dbclass4075
5 жыл бұрын
Exactly. This video is two years old.
@PfunkNH
7 жыл бұрын
I turn on ad blocker on every one of your video's.
@GeorgeTsiros
7 жыл бұрын
PfunkNH i think they meant to type 'off'
@HarryL2020
7 жыл бұрын
Daniel K of*
@RamBoZamBo123
7 жыл бұрын
*videos
@djkennedy4759
7 жыл бұрын
would an hcci engine not solve the cooling resistance issue
@brighterthanlightning5999
6 жыл бұрын
I'm really digging all of this information, there's always a better and more efficient way to what exists already
@onlyeyeno
7 жыл бұрын
+Engineering Explained I've never even thought about this issue and I still found this very interesting due to the way it was explained. Thanks.
@feelanythingproductions5281
7 жыл бұрын
Is this inefficiency in cooling the main problem for top speeds affecting the production car industry?
@TheColonel_
5 жыл бұрын
Enter, the Koenigsegg Jesko...
@jakeallen2624
5 жыл бұрын
Colonel Baby Bugatti chiron*
@masterminecrafter154
7 жыл бұрын
it's because you ran out if plutonium and Mr fusion broke so the flux capacitor can't get 1.21 gigawatt
@dizyart6996
7 жыл бұрын
A total engineering newb here. Great stuff in the video, as always. Just had an idea... Why don't cars have radiators or some heat-dispersal systems on the surface of the car? You always have airflow over them and you can use huge surfaces which let the air pass over them, not into them. Could bring the cooling drag down, I guess.
@exothermal.sprocket
6 жыл бұрын
These vehicles are not optimized to do it. That's the basic answer. They are designed to have creature comforts, carry a side-by-side passenger layout, designed with huge and heavy engines, designed to meet safety standards, designed to be quiet in the cabin, designed to have huge wheels and tires as an aesthetic, designed to look a certain way. All this big, bulky, heavy, high-drag, compliance-friendly stuff only slows them down. It's conceivable that a cockpit-shaped canopy vehicle that's extremely narrow (one driver) with narrow wheels and tires, riding just above the road surface, with high tech suspension, dynamically changing body work, hugely powerful forced induction motorcycle engine (light weight, compact), custom transmission, and a drag coefficient less than 0.15 should be able to reach 300 easy.
@driftatlas
7 жыл бұрын
You need to tell me that after almost 100 years, they haven't figured out how to make a better weight/power ratio and aerodynamics than the Campbell-Railton Blue Bird??? That car had 4.5 tons with 2200hp...nowadays bugatti has 2tons and 1500hp and same top speed. Somehow 700hp extra for 2.5 tons extra with that record in mind sounds like a genius make.
@EngineeringExplained
7 жыл бұрын
+a-zeu weight plays an extremely minimal role in top speed. A veyron that weighed 4.5 tons but had 2200 HP would reach 300 mph.
@driftatlas
7 жыл бұрын
A BMW that weighed 4.5 tons but had 2200hp would reach 300 mph. Get my point? I understand it's not just about the weight, that's why I placed aerodynamics and power ratio. It's 100 years(missing 8) ago, it's just unbearable to understand what is the hold up...
@maxmustermann-ie6ic
7 жыл бұрын
It's because no one is aiming for that goal :D
@driftatlas
7 жыл бұрын
Then what goal do they have? Make a complicated engine, expensive bodyshell, a lil bit of design and put a $2.5 mil tag on it? Lol..maybe looks like I'm trolling, but the electric cars developed lately have progressed more than the oldschool typed engineered ones. And that's what..in a 15-20 year lifespan of research?
@maxmustermann-ie6ic
7 жыл бұрын
a-zeu No I mean no one is concentrating on the HP/weight ratio (actually they are look at the ariel atom v8)
@whysosketch7591
5 жыл бұрын
Bugatti just hit it...
@dbclass4075
5 жыл бұрын
Exactly. This video is two years old.
@whysosketch7591
5 жыл бұрын
@@dbclass4075 just came to break the news
@garrettnix6637
7 жыл бұрын
Im lost..
@bobleponge9244
5 жыл бұрын
bugattti chiron 304.77 MPH august 2019
@wzbhnn
7 жыл бұрын
I believe the tire rolling resistance coefficient is a variable based on speed. A 0.015 coefficient at normal speed will probably increase to 0.03 at 300MPH for the same tire.
@tomh7647
5 жыл бұрын
Lmao a chiron just did 300mph
@dbclass4075
5 жыл бұрын
This video is two years old.
@dbclass4075
4 жыл бұрын
@amarjit singh Chiron haven't set the top speed record yet five years ago. It was set 7 months ago. Note: that variant is different from the original Chiron. That variant is still largely unknown at the time of this video.
@NinjaOnANinja
7 жыл бұрын
Yeah, I have a question about everything you just said. What? xD
@atranas6018
7 жыл бұрын
try do it with electric car. it require significantly less cooling
@DevasionX
7 жыл бұрын
you have no idea how hot batteries and the motor can get. try using a battery drill and use the other hand for resistance, within a minute that tool is overheated.
@sigmaprojects
7 жыл бұрын
He just did a video about how electric cars require similar amount of cooling for similar tasks.
@nikolatasev4948
6 жыл бұрын
There is already an electric car (not production, I admit) that reached 341 mph - the Venturi VBB 3. Unlike other hyper-fast cars, this one accelerates using the wheels, not using jet power. So the physics of lower drag and electric propulsion are not the problem. We just need someone to take on the technology issues.
@sigmaprojects
6 жыл бұрын
Nikola, I think you're missing the point as no one was saying an EV could not reach 300mph. Of course drag is the main factor in top speed and that's what was pointed out by E/E. But a car designed to have more than 1 person and be used for everyday use usually has some design issues with trying to achieve huge top speeds. For reference in 1935 Malcolm Campbell and his Blue Bird hit 300mph in their vehicle making an estimate 2300hp. There are plenty of engine builders now that can achieve such power levels. But again drag like the video said is the issue. EV or ICE both have cooling issues that need cooling devices that create drag and on top of that in a production car if they want to stick to the ground they need downforce and it'll create more drag as well. That's why the most powerful production Corvette to date is actually a bit lower top speed than some other Corvettes due to aero parts put on to create more downforce.
@duckface9425
6 жыл бұрын
The biggest Problem Are still the tires. We can fix the cooling problem easylie, but tires Are a big Problem.
@punkrockinrattlesnaker7514
7 жыл бұрын
Great video champ, there was alot there that I did not know. Youve exsplained it very well too! Well done.
@Bonno460xvr
7 жыл бұрын
Smart dude, glad you enjoy the numbers, i enjoy listening
@sagarnanda7672
7 жыл бұрын
If I understand this video Does that mean am a genius
@JuanReyes-yu1zc
7 жыл бұрын
Congratulations you're a car enthusiasts
@alebone_
7 жыл бұрын
It means you know basic physics
@petrolmonkey1973
5 жыл бұрын
Yes, you am a genius
@N4THANF0ST3R
7 жыл бұрын
It will be electric to hit that speed not much cooling then
@Oliver0200
7 жыл бұрын
N4THANF0ST3R they can still catch on fire
@notirishrider7953
7 жыл бұрын
Actually there is still cooling in electric motors... also keeping the batteries pumping out the power needed and keeping them cool enough might be another issue
@HaouasLeDocteur
7 жыл бұрын
True, but electric vehicles don't lose 3000 hp for 1400 of useful power either. The cooling won't have to be so extreme.
@DouglasGardnerTV
7 жыл бұрын
fastest production gas vehicle right now - 280mph. Fastest production electric car 155mph. Electric production cars will not reach 300mph before gas.
@HaouasLeDocteur
7 жыл бұрын
Douglas slap a multi-ratio transmission in an electric vehicle with enough juice and you'll see.
@cloudygor8948
7 жыл бұрын
Most car consumers around the world cares about cost per mileage, service intervals, safety, comfort and entertainment feature much more than acceleration and maximum speed. Makes no sense to mass production a 300 mph car at a cost of half a million each when only 1% of the market will even be able to afford it, let along driving it in any meaningful way on a day to day basis. Most likely 90% of the time it will do less than 60 in any major cities. Might as well buy something that comes with traffic jam assist
@nielsunnerup7099
7 жыл бұрын
You'd be surprised at how fast the first 300 mph car would sell out, I think.
@ireneuszpyc6684
7 жыл бұрын
Niels; yes, and then those hypercars spend 99.9% of time being parked in high security garages (almost never driven in the real world)
@brunixbrogamer9852
7 жыл бұрын
actually theres a devel sixteen , it goes 560 km/h or 348 mph if you will
@nielsunnerup7099
7 жыл бұрын
Eryk Pyts I'm not disagreeing with you.
@crackedemerald4930
7 жыл бұрын
BrunixBROGamer it doesn't, unless you are an insider the devel sixteen doesn't even hold up to a little bump
@LorenzoSpag
7 жыл бұрын
Impressed how you kept my attention the whole time
@Kraigmire
7 жыл бұрын
I think what would illustrate this very well was plotting HP needed vs speed. This would have highlighted the velocity squared requirement for the drag force and shown how that force just takes off as velocity gets up there.
@petea2721
7 жыл бұрын
doesn't the 100% American made Hennessy venom go like 340mph
@mikeoxmaul_2121
7 жыл бұрын
pete a, no. It travels to speeds of upto 430 km/h :)
@petea2721
7 жыл бұрын
Tan Jia Yong but the Americans think they are the best at everything.
@kidfromafrica3169
7 жыл бұрын
pete a the Americans are because we invented the fortune cookie
@stevendensmore4646
7 жыл бұрын
pete a the top mph was 270
@petea2721
7 жыл бұрын
Steven Densmore one way. it's really easy to go fast into the wind
@edmoverlord8588
7 жыл бұрын
Sad Bugatti needs awd to get it's top speed #rwd Hennessy venom
@edmoverlord8588
7 жыл бұрын
AWD IS FOR PUSSIES no.1 no.2 > Rwd = better top speed and lighter if people knew anything about cars Hennessy dosnt need a W16 twin turbo either 😂😂😂 Bugatti makes overpriced cars
@WymiataczPlays
7 жыл бұрын
indeed awd is useless at ultra high speeds, thats why i didn't understand your point in the first place... about that awd for pussies part i wont comment, thats your opinion
@mikeoxmaul_2121
7 жыл бұрын
Wymiatacz Plays, AWD does help the vehicle in accelerating faster :)
@WymiataczPlays
7 жыл бұрын
i know lol... I'm talking about high speeds here, not launching.
@mikeoxmaul_2121
7 жыл бұрын
Ok.. Look at the Mercedes AMG GT and the Nissan GTR R-35 for examples.. They're using permanent AWD systems and have a top speed of close to 320 km/h
@brucehearn2621
6 жыл бұрын
This makes one realize just how important the quasi-Meredith Effect coolant exchanger system was for the P-51 Mustang.
@dannygoff6289
7 жыл бұрын
Man I love these segments you do, very awesome learning about such interesting facts
@roundballrolls2762
7 жыл бұрын
Great video. I understood everything you said after "so thanks guys for watching"
@mikehawkisbigger98
7 жыл бұрын
been thinking about this for years thank you brother
@manickn6819
7 жыл бұрын
Good back of the envelope calculations. Well addressed and covered.
@adamb2619
7 жыл бұрын
The length of the road vs acceleration comparison is needed as well. There are only a few areas where there is a long enough run.
@Jangle2007
7 жыл бұрын
Engineering Explained: First, your channel is quickly becoming one of my Top-10 go-to sources for interesting information. Thanks for taking the time to do this. Second, if the automotive cooling system is the source of aerodynamic inefficiency (higher Cd) - especially in high performance vehicles - can the engine's cooling requirements be reduced by designing an engine and cooling system that operates at a much higher temperature? In this manner, I presume that the atmospheric air would have greater cooling capacity per area of heat exchanger, thereby reducing the area of the required heat exchangers. For example, pure ethylene glycol boils at ~388F, whereas a normal 50-50 EG-H2O mix boils at ~230F. Other liquids must also be available to operate at higher temps. I'm sure I'm not the first person to posit this question. Is there a good reason in response?
Пікірлер: 2,7 М.