VTEC: How It Works | Science Garage
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- Опубліковано 28 тра 2024
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You’ve seen VTEC on cars, but what does VTEC mean? VTEC has to do with the valves in your engine that help dictate airflow, horsepower and fuel consumption. This Science Garage gets into Cams, lobes, lifters and more before narrowing in on how VTEC works. Cars have single cams, overhead cams, dual overhead cams and even triple overhead cams to help them do their jobs. VTEC is a unique variable cam design that has changed the way we think of engines… get ready, because VTEC just kicked in!
Bart teaches us how cars work by blowing stuff up and cutting things in half. It’s a science show for the car lover who’s easily bored. Join Bart as he explains the science behind everything automotive. This is cars down to the atom. This is Science Garage.
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I don't know who this guy is but he's invited to my family reunions
Good
Sweet home alabama
@@Lukas-ug1ke 😂😂??
@@prosperity144 where all the skies are blue
No you’re invited to his family reunions
Understanding just kicked in yo!!
ITUBE AAAAAAHHHHHHHHHHH
I swear
But it didnt go BAAAAHHHHAHAAAAAAAAAAA
IQ just kicked in yo
He misses a very important part amd was wrong on a part. Vtecs middle bigger cam lobe simply kicked in at 5200 rpm regardless of if the pedal is all the way down or not and stays that way until rpms drop below 5200 rpms no other variables matter like this guy said. He said engine temp and oil pressure have to be at certain points too lol nope sorry bud I've tuned Honda engines with hondata for the last 10 years and the only thing that the ECU reads to click that pin in to use the higher lobe is simple that 5200 rpm point. Plus you can literally hear it when the new cam lobe is engaged
I did not know vtec was this cool lol, it's actually impressive yet simple
He misses a very important part amd was wrong on a part. Vtecs middle bigger cam lobe simply kicked in at 5200 rpm regardless of if the pedal is all the way down or not and stays that way until rpms drop below 5200 rpms no other variables matter like this guy said. He said engine temp and oil pressure have to be at certain points too lol nope sorry bud I've tuned Honda engines with hondata for the last 10 years and the only thing that the ECU reads to click that pin in to use the higher lobe is simple that 5200 rpm point. Plus you can literally hear it when the new cam lobe is engaged
@@seekdiscomfort4746 great info! why is he talking about multiple parameters then, any idea?
@@seekdiscomfort4746 i have an ap1 s2k and its also interesting that the vtec has a protection mechanism when the engine is too cold which completely makes sense (shouldn't be romping on it when cold anyways) but just thought that was cool
@@seekdiscomfort4746 I own a FN2 Civic Type R with the K20z4 i-VTEC engine with some basic bolt-ons and a Hondata tune that has lowered VTEC engagement to around 4000 rpms from the stock 5600ish and you are wrong! If my throttle is less than 25-30 % depressed VTEC will not engage even if I go all the way to the 8600rpm limiter. Perhaps what you say is true in B,F or H series and not on the K series but that I do not know.
@@seekdiscomfort4746 with a hondata u can make vtec work at whatever RPMS the tunner decides.mine is also set by TPS. Soo I don't have to be @(5200) assume at TPS register the decided % of trottle it would kick.
“If a car has a personality on its cam shaft, a vtec has a personality disorder”
You arent wrong
Shingo is mad crazy
He misses a very important part amd was wrong on a part. Vtecs middle bigger cam lobe simply kicked in at 5200 rpm regardless of if the pedal is all the way down or not and stays that way until rpms drop below 5200 rpms no other variables matter like this guy said. He said engine temp and oil pressure have to be at certain points too lol nope sorry bud I've tuned Honda engines with hondata for the last 10 years and the only thing that the ECU reads to click that pin in to use the higher lobe is simple that 5200 rpm point. Plus you can literally hear it when the new cam lobe is engaged
@@seekdiscomfort4746 bot
The sophistication of God Hand combined with Shingo' psychopathic tendency
~C O O L V I B R A T I O N S~
@@seekdiscomfort4746 am also a Honda tuner. Many Hondas under our belt at our dyno here. And your both right. While yes, if you set the high cam and vtec kicks in at 5200, then higher lobe is activated at 5200 BUT Vtec also has its own parameters. For example, you have to usually be at a minimum of 140*F coolant temperature that your engine needs to be at before Vtec can activate. When it comes to oil pressure, you cannot set Vtec to low or there won’t be enough oil pressure. So yes you can set Vtec to kick in at 5200 you also have to meet the parameters to safely be in high cam (engine temp and oil pressure). Obviously Once the car is started and warmed up it’s fine- it’s not like anybody is going WOT as soon as they start their car. But he isn’t wrong either.
VTEC to everyone: Very sophisticated speed increase.
VTEC to me: *VROOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOM*
vtec doesnt increase speed, it increases efficiency
@@george64826 it does increase speed by giving the car more horsepower. Bro you just watched a video explaining vtec and still missed the point. its a fuel efficient car in the low end and has power in the top end, making it faster.
BRAAAAP BRAAAAP BRAP BRAP BRAP
More like, vvrooooooAAAAAAAAA
@@ConLLee Razvan is right, the engine could be just as powerful without vtec
The greatest joy in life can be found in buying a Honda built lawnmower, and sticking a V-TEC sticker on it for all the neighbors to see.
On a push mower!!!!
I should totally do this to my honda mower. Maybe throw a fart can on it too
@@Esteb86 And a precisely sized spoiler
@@starfox9818 Group C Wing***
If only they put vtec inside Honda mowers so the blades wouldn’t get bogged down when I go over a huge pile of dog shit.
There were many opportunities to say “MO POWA BABY”
BAHHHHHHHHHHH!!!!!!!!!!
He didn’t wanna take the shine off of James
And we he’d say it there was no powa in the power
you can't say "mo powa baby" about vtec, it just makes noise giving kids the impression of high performance, meanwhile barely hitting 60 horsepower at 10 billion rpm :-)
He misses a very important part amd was wrong on a part. Vtecs middle bigger cam lobe simply kicked in at 5200 rpm regardless of if the pedal is all the way down or not and stays that way until rpms drop below 5200 rpms no other variables matter like this guy said. He said engine temp and oil pressure have to be at certain points too lol nope sorry bud I've tuned Honda engines with hondata for the last 10 years and the only thing that the ECU reads to click that pin in to use the higher lobe is simple that 5200 rpm point. Plus you can literally hear it when the new cam lobe is engaged
Best VTEC explanation on youtube. Clear and informative, funny edits and a super engaging presenter. Well done Donut Media!
V-Tec stands for
V - Who cares
T - About Acronym Meaning
E - All you need to know
C - This car is a fast boi
WAAAT
Yeahh👽
John M the thing about the 90's to 2000's Hondas was that they weren't really made to go fast, they were meant to handle well. That was the whole premise of the Type R Hondas. Stiffer roll bar, strut bars, lightened interior, and good suspension. Hondas weren't fast cars. They were fun cars.
WAAT just kicked in 😂
Correction for C:
This car is a SPEEDY SPEED Boi
(Haha Initial D)
Still don't get the hate for vtec guys.
Does anyone else make a vtec as in, variable camshaft profile? I'm not talking just variable valve timing, but specifically variable camshaft profile.
Because all you people think your faster than a subaru
VVT on Toyota and VANOS on BMW
So Vanos has a variable camshaft profile like VTEC?
ikr
Nothing but respect for engineers who design these systems 👏🏾
I think you should add gratitude as well.
The people who disliked never had VTEC kick in.
People who disliked it got gapped by a Honda 😂
Nah....we bought proper cars with turbos.
And there's only so many cars that one tuned Civic could gap.
The rest were old people cars, clapped oit then given to grandsons.
He misses a very important part amd was wrong on a part. Vtecs middle bigger cam lobe simply kicked in at 5200 rpm regardless of if the pedal is all the way down or not and stays that way until rpms drop below 5200 rpms no other variables matter like this guy said. He said engine temp and oil pressure have to be at certain points too lol nope sorry bud I've tuned Honda engines with hondata for the last 10 years and the only thing that the ECU reads to click that pin in to use the higher lobe is simple that 5200 rpm point. Plus you can literally hear it when the new cam lobe is engaged
@@seekdiscomfort4746 Depends on the model and engine, as mine red lines at 6500, its Vtec and peak power comes on at 4k and watching the needle go from 4k to 6k in blink is fun.
I thought VTEC stands for
Very
Tall
Engine
Cooling
WTF XD😂
Somehow this sound familiar
MAYBE
Talk about a throwback eh
Its from rice in vid talk about car
I miss science garage:(
We all do
@@SpartanX300 ikr
@@rayhanrizvi334 *Sad Boi Hours*
@@Joddyjohn5 lol ikr
Dont we all
Not only that VTEC is both powerful and fuel efficient, but it also sounds so cool that it gave me an eargasm, Props to Ikuo Kajitani for making such a great engine
I'm from Turkey, and watched a lot of vids about V-TEC in my language but, this was on another level. I get everything what I was searching for in this vid. Thx Donut!
Vtec in old 2003 Honda Odyssey: *exists*
Me when I was 16: *VROOOOOOOOOOM*
Dude!
It’s really true though! Those things are MINT
VTec in 2003 Honda Element....So fun....People hate me but this car got some good handles🤣
Yes! My02 as well lmaooo
HAHA I'm in line to get handed down a Honda Odyssey with broken power steering but at least *VTECH just kicked in yo!*
VTEC BAAAAAAAHHHHH!!!!
*see a civic going past real quick*
:O
bro...i need dat vtec
MatthewTuber14 haha get some
I was waiting the whole video for the clip of Pumphrey yelling
King Whispa then the temp skyrockets
BRAHHHHH
People don't realize how genius this show was. From the education to the jokes and the editing!🤯 it's a creative masterpiece for sure man 💪🏿
6:01
I cannot get enough of this
BAAAAAAA-
Your pfp agrees!
I wish my physics teacher would have taught like this
Do driving classes even teach us this stuff?
I'm really glad most teachers aren't as annoying as this guy.
And i wish my teacher to teach that!!
@@diliff
I second that.
These are pretty okay videos, but the dude damn near ruins them.
with videos edited every 5 seconds?
"VTEC just kicked in yo!
Oh god"
Lmao that was so perfect hahaha
*engine explodes*
This is one of the most valuable series on the Donut channel. So grateful for these Ed videos with an amazing format and host personality!
Everybodys gangsta until
Vtec kicks in yo🔥🔥🔥
#VtecPower
Driving normally: boring -_-
When V-TEC kicks in: BOIIIIIIII
You sound like rspecryan lmao it’s more like boring and quiet and you wanna die then you slam the gas and you’re like DAMN BOI THIS SHIT LIKE A V12
*engine goes boom*
It's still slow tho?
@@bigblock3706 neh
V-tec:BAAAAHHHHHHHHHHH!!!!!!
Please be patient, I have vtec
MOM IT'S A SUPERCAR IT HAS VTEC
I have 95 eg civic and it doesnt have vtec
@@djurdjicakolic9347 I have an 03 civic ex coupe with vtec
This a great explanation. What I like about it is he makes it simple and clear without getting too technical and boring. The visual illustrations were very helpful and interesting.
Donut educational videos are honestly amazing. I've learned a ton that I otherwise wouldn't because it doesn't click for me when I read it myself.
I once had a '91 Honda CRX vtec. What a great little car that was.
Gran turismo 4 fail music (oh yeah) intesifies
Awesome car and great looking too
He misses a very important part amd was wrong on a part. Vtecs middle bigger cam lobe simply kicked in at 5200 rpm regardless of if the pedal is all the way down or not and stays that way until rpms drop below 5200 rpms no other variables matter like this guy said. He said engine temp and oil pressure have to be at certain points too lol nope sorry bud I've tuned Honda engines with hondata for the last 10 years and the only thing that the ECU reads to click that pin in to use the higher lobe is simple that 5200 rpm point. Plus you can literally hear it when the new cam lobe is engaged
I had a obd0 b16 ef hatch and it would not Switch to vtec cold.
@@seekdiscomfort4746Right on brotha.. He totally missed an opportunity in at least pointing out sohc vtecs like y8 or z6.. not to mention frankesteins like mini me D, B or K series
Timing of the animation is also is complicated as the engine. Bravo
What a great explanation. Not everything needs to be overly complex to get the main understanding across. These guys are on a roll with these vids
Just watched this episode again and wanted to take a minute to thank all of u at doughnut for putting out interesting Shows about something most of us all enjoy. Cars and car history.
You have helped educate a lot of people who have no clue about cars
And. Helped remind the rest of us why we love cars and car history. Keep up the good work. 😊
What every1 was waiting for happens @6:01
Which video has the original?
The Acura Integra episode
yup
we need a gif of that
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAH
You should do a video on larger engines that shut off certain cylinders when you’re driving normally
Noah Peltier what you’re referring to is cylinder deactivation ;)
I agree, start with the Cadillac V8-6-4 of the 80's haha
4G92 Mivec MD
Just like the demon!
FallaciousScotsman the demon has cylinder deactivation...
these videos have taught me more than any class could. i love the ani
animation and the consistency in the art. the explanations make sense. thank you
Amazing channel with lots of good info, I am new on the car world so you guys are really helping me out, thanksss
VTEC=Very Tall Engine Coolant
WhiskeyTangoFoxtrot i know that from a video about ricer craptalk compilations
Lol I get the reference😂
Wasn't it "very long time cooling"??
WhiskeyTangoFoxtrot ii
WhiskeyTangoFoxtrot VTEC - Very Technology
Great explanation. Basicly vtec is the drill sergeant that wakes you up with a loud shout and you start running really fast.
LIGHTS LIGHTS LIGHTS!
I.... Am speed.
This was such a well done explanation, I love these videos please bring them back 😭
Back in the the mid 90s I had a 91 JDM integra xsi vtec sedan with a b16a engine, 2 engines in one. Loved this shit back then, timing was key when up shifting at the rev limit to keep vtec engaged. Tuning for these in NZ was still in its infancy, had done basic mods, full exhaust, extractors and air intake, but still a car to be reckoned with, with what we had lurking our streets back then. Cruising, someone pulls alongside wanting a race pop into 3rd revs touching 3500 to 3600 vtec engaged then GO! Instance power see ya! Just thinking about then puts a smile on my face from some fond memories yeah!
What's the science behind why cars have "New Car Smell"?
The "new car smell" is mostly adhesive fumes from the vehicle assembly.
TheFerrariKid its glue and plastic. i kinda hate it, every new car i buy i drive for like 2 months with the windows open, my head just hearts becouse of that smell.
Are you really confused on why that happens, have you ever owned anything new, everything has a "new" smell from production.
I work for a car manufacturer and I always smell the new car smell every day when I roll them off the production line.
Answer this
Thanks for giving us credit for the footage at 2:48! You guys make awesome videos. If anybody is interested in watching the full video of our Chrysler HEMI rebuild, here's the link: ua-cam.com/video/9XJE-2KNH-Y/v-deo.html
bruh aight
ok..
You guys make awesome videos too
Great video. This made it extremely easy to finnaly understatnd what vtec means.
we need more of james's "baaaa" in dis video
it is
obviously
@6:00
6:01
I forgot I was watching a vtec video for a minute there. Right when I started thinking to my self I know I didn't click on a camshaft video, what the hell am watching again,-Dude starts talking about vtec, -oh yeah that's right.
Yo Pappy vtec kicked in, yo
You really explained it to me like in 5 and im grateful for it. Understand this thing
awsome Explanation Thanks for Sharing!!!!
Einstein‘s theory of nothing can travel fastest than light was proved wrong when Vtec kicked in yo!
@: that was almost funny I'll give you another shot at that
Impossible
ZEROFUX shuuuuut the fuuuuuuuck up
Why do I need more power (horse power), I already had atom and nuclear power which million time than yours - Einstein
On me
Wow, I _finally_ understand how VTEC works😲.
You guys are awesome!
VTEC kicks in yo
This is the best mechanic-for-doomies UA-cam channel. Now i feel complete as a man how knows and understand something as simple as a car
i love this channel never disappoints with the info
So what you're telling me...is that VTEC....is basically like Normal Mode and Pursuit Mode??
GETUP AND GO now I'm gonna have the theme song all day. That's not a bad thing.
Not a bad thing at all. My job here is done!
Dammit it’s stuck in my head too
Bomb ass 80s show amirite?
I don't get the reference...
Hell yes!
VTEC, turbo lag without a turbo...
Edit: Holy shit, I forgot I made this comment, most likes I've ever had!
Far from that. Better cams only work for high revs. So best of both worlds
vtec: moh pawah babe
Instead of thinking of it as a boost, think of it as the engine becoming slower to save fuel when at low rpm.
More like permanent twin sequential supercharger
Avery Kucan that sound boring hence is fake :/ it means more pawah!!
Very good vid.. Been doing this gor years. Designing cams for custom builds.. And this is very very informative video. And this will get the beginner mind in gear. Touching off on many styles amd reasons for cam types. Velocity acceleration and jerk values. Ovee lap periods etc
I never knew what VTEC was for 16 years. After watching this video a couple times I finally understand how it works. And it sounds so frickin cool.
YYYYOOOOOO you explain everything man, slow, and uncomplicated. I've learned alot from you!
Yeah i have VTEC
V - Very
T - Tall
E - Engine
C - Cooling
V- go
T- fuck yourself
E-
Goat 710 u talking to me? Or just makin ur own joke
DA AMAZIN' SPAH the guys clearly joking in the video you aspie
Need 4 Speed Videos hahahah I remember that video I hope that dude was just tr0111ng
Sounds similar to muffler belt.
Won’t lie, I don’t know much about this stuff so I love these videos. Very informative. And fun!
I got me a 2024 Civic Sport Touring, and the VTECH is amazing, this thing takes off in a beat!
I've come to be a pretty big car enthusiast within the past two years, but have never really understood how my favorite vehicles most basic technology works. This series has helped a lot and I'm really appreciative of how varied the material is. You guys are fucking awesome!
SO THIS is what happens when my rice starts cooking! 😂😂
TheNightRiderz some muscle cars use the same system not just imports.
LOL
CHINGON CHINGONISM Yea i know, what are they called though? I've always been curious.
That's bbq bro. Trucks for grills
Marios Tabajen 😂 "bbq" 👌
As a 2001 Civic owner, thanks bro, I can now flex my VTEC broo
My sisters boyfriend had a Honda Prelude when i was just about 8 years old, at the time it was the most cool looking and wild sounding car to me.
When he pushed the pedal to the floor and the engine started roaring, it instantly put a smile on my face - and naturally my sister married the guy - now he has a 2008 Civic Type R - and when it revs, it almost puts a bigger smile on my face.
So... the engine block gets head?
tommy d u b b s yes and alot of it😎
*Badam tisss*
Does anyone else make a vtec as in, variable camshaft profile? I'm not talking just variable valve timing, but specifically variable camshaft profile.
vtec cams has variable profile
Lol
I knew james pumphery's legendary "BWAAAAAAAAAAAAAAAAAAAAA" was going to pop up
SDMN. XIX it’s too legendary and I’m not tired of it
One of the best videos ever, on any topic.
Probably the best channel on UA-cam hands down
It's amazing to think those pins don't break more often
"cars built for good economy are slow"
*Tesla*
Facts
@@mattvespa4262 not built for economy
@@Jupiter__001_ they have the best fuel economy 😂
But really they are really efficient on electricity and they get software updates that both increase power and give better efficiency, it's crazy
@@anthony64924 They are not really efficient on electricity. We have the inefficiency of the oil powerplant, then that of the transmission, then charge and discharge inefficiencies of the lithium ion batteries. This actually adds up to worse mpg than a petrol car (as in oil).
Energy-recovery in braking is a good idea and has been demonstrated to improve performance in F1, and obviously improves efficiency.
I did not know vtec was until I watched this video. I learned so much thanks!
the most entraining car I've ever owned was my 2001 Acura RSX Type-S I-VTEC. The day always became a little more beautiful at 5,000rpm in that car.
Honda owners : VTEC JUST KICKED IN!!!
Subaru owners: AVLS JUST KICKED IN!!!
Nissan owners: CVTSC JUST KICKED IN!!!
GM owners : DCVCP JUST KICKED IN!!!
BMW owners : Vanos JUST KICKED IN!!!
Kia owners: VTVT JUST KICKED IN!!!
Ford owners: VCT JUST KICKED IN!!!
Toyota owners: VVTI JUST KICKED IN!!!
Mitsubishi owners: MiVEC JUST KICKED IN!!!
Ali Derenoncourt it’s not your vec is MiVEC! XD
Lmfao
Nissan should be vvl lol
Chevy: onstar just kick in yo
Privacy is gone yo
I'm not sure which UA-cam rabbit hole got me here, but I just watched my first video from this guy. I can already tell this is what I'll be doing for the next 2 hours.
Love this explanation. Thanks
This episode got me good. Subscribed.
You can hit vtec in reverse
Ali From IRAQ proved by CarThrottle 😂
that's amazing
As it was proven by CarThrottle
CetV
i like how hes in a kitchen with goddamn car parts behind him hahah
@6:33 More Power Babbbbyyyyy !!!
Excellent video, from South Brazil.
Initial D fans recognize this :
*C O O L V I B R A T I O N S*
Shingoed
I WANNA DANCE
GO!
@@SmolBiscuit DEEP INSIDE
*"D A B U R U C R A S H U U I K O Z E I I !"*
Already knew how VTEC worked, so I simply added a higher flow intake manifold to optimize pressing the pedal to the floor. Worked nicely while keeping 4 grand in my pocket and my engine life existing avoiding turbo power. With the high flow header and cat combo connected to a full catback, I'm satisfied.
dude always cracks me up, and i learn something!
Winner! Winner!
#BringBackScienceGarage #ScienceGarage
Thank you! ive always wondered!
VTEC : very tall engine cooler (as said by some ricer)
The fuck is a ricer
@@anderstermansen130 get out. Just get the fuck out.
Basil Ahmed lol let ppl learn
@@anderstermansen130 bruh
@joey ilog wait do you even know what ricer means?
(The guy from the video) looks like john cena
How do you know??? 😂
I dont see anyone, what are you talking about?? Lol
Soo... who are we talking about? I don't see anyone...
@@ali94hn 🤣🤣😂
I can see him
This guy is cool he explains everything in detail making it easier to understand i wish i have a teacher like this lmao
This is very well explained spiced with a fantastic humour
Learned More thing here than at school
I'm just getting into cars so your guys video are the BEST! They're helping me a lot and I'm always looking for more Science Garage videos. Thanks for making your videos funny and helpful to watch
Loved this video just got a 2002 honda ex accord vtec v6
This is excellent. Forwarding to my 13 yr old. Thanks for making this video.
My vtec always kicks in ;)))
Yo
Jonny yes daddy
all you need to know is .... VTEC KICKED IN YO !!!!!
ZERO YT BAAAAAAAAAA
walter_ white0404 XD
Hello 1999 lol
souls elite hey a bit late but hey
Lmao intro!
I had no idea it worked like this, thanks for the video!
thankyou very much for your teaching
... Vtec is like ADHD If you bring it high enugth it goes and goes ...
ADHD, confirming
McLaren F1 (1993) was 6.1 liter Naturally Aspirated VTEC.
@Zero Vertigo that's not a joke that's real dumb
that makes sense Honda supplied engines to McLaren in F1 around that time
@@MidwestDIY the McLaren f1 used a BMW engine
Old NSX does
Arlan T. Hes saying F1 as in formula one race-cars I believe.
thats so intuitive
love it
Man, you guys are kinda like the Linus Tech Tips of cars, thank you for the videos, I've always wanted to learn about cars stuff.
i have learned so much about cars through this series. thank you so much!