How VTEC Works (In 60 Seconds)
Vložit
- čas přidán 20. 10. 2022
- VTEC is Honda's variable valve technology used to change the amount of valve lift and valve duration in the engine. By altering valve lift and duration, you can influence how much air the engine receives, and can thus influence power. The more air you put in an engine, with more fuel, the more horsepower you make! And everyone loves horsepower.
Full video on how VTEC works:
• How VTEC Works - A Sim...
Subscribe to Engineering Explained for more videos! - goo.gl/VZstk7
Recommended Books & Car Products - amzn.to/2BrekJm
EE Shirts! - bit.ly/2BHsiuo
Engineering Explained is a participant in the Amazon Influencer Program.
Don't forget to check out my other pages below!
Instagram: / engineeringexplained
Facebook: / engineeringexplained
Twitter: / jasonfenske13
EE Extra: / @engineeringexplainede... - Auta a dopravní prostředky
VTEC can also change the valve duration (how long the valve is open, relative to the engine speed), depending on the camshaft design. Open the valve longer, let more air in! Or allow for valve overlap for better scavenging. Want all the details!? Here's the full story: czcams.com/video/tSCuRXnfLuI/video.html
It would be good to decribe, and maybe you have before, the reason why VANOS, VVT etc etc is not VTEC or a variant of it. Most people seem do not understand the difference between changing the cam angle in relation to the engine versus completely changing the cam lobe.
Can you review the 1.5 VC turbo 3 cylinder engineer explained
I like the word scavenging. Nice btw
You can make a Honda faster but it's still a slow Honda
Or . you could just get a TESLA and leave last century's technology in the last century.
"VVTLEC just kicked in!"
"You having a stroke?"
LOL 😂😂😂
*VVTALEC
VaValTiLEC! 😜😂🤣
VVT works just fine, the extra words seem unnecessary
Vtec kicks in after starting car
“VTEC makes slow cars feel just a little bit faster” 😆
That was perfect! hahaha
Emotional damage
That was the truest thing I've heard all week🤣 and I'm a honda fanboy as well😅
@@leesin2me I’m more of a rear drive/all wheel drive guy but I love the S2000, NSX, integra, civic, I guess a lot of Honda’s. And yeah I thought this was funny too. But I drive a slow car as well (2018 STI)
It makes my really fast VFR go even faster. Love my VTEC TECH
my mom's VTEC in her honda odyssey has 323,458 miles and is still going strong 💪
Just wait until that VTEC stays kicked in .
323 is attainable for any Honda/toyota with a half decent owner.
My dad toyota sienna 2000 has 309,677
Boost it
2016 Acura ilx 144000+ miles. Never even had a hiccup 💪
It was a good way to get around emission control laws in Japan. They could show that while running cars lower than a certain RPM and throttle, they could curb their MPG within the structure of the law.
Makes sense. Else why not always have more air
@@kaenyito-cole5706 Because it's less fuel efficient
VTEC is an abbreviation using only the letters they feel like 😄
It does sound cooler than VVTALEC
Hey, you gotta do what you gotta do sometimes
@@Fred_the_1996 idk man VALTEC sounds pretty cool too
@@vlcallmeprince-x6032 yeah but VAULT-TEC thought it is too similar and sued them
@@Fred_the_1996 its actually VVTLEC
This color coded animation really helps to show how v-tec kicks in. It was explained in one of your other videos, but this was even better.
Did it make your Honda 50 get any more 2f2f nitrous jumps bro?
..... but the concept is so easy to understand, you could even get it if you were blind and deaf and he was talking to you with these colored animations.
@@MrPaxio Or even Color blind!🤣
I once owned a Honda VFR800 motorcycle. When VTEC kicked in on that bike it kicked ass, turned into a screaming banshee. Loved that bike.
the VFR 800 is my dream bike, youre so lucky to have owned one lol
@@genisis3457 I rode that bike across the country, also to Vermont, the Blue Ridge Parkway and many times through West Virginia. I’d still have it except for a deer that came out of nowhere.
@@kidlatazul
One name my friend, HONDA. 👍🏻😎👍🏻💙
@@kidlatazul Damn dude. Did you manage to avoid hitting the deer? I hope you didn't get seriously injured from the incident.
@@BabaYaga214 Thank you. I was distracted by a woman and 2 children on the side of the road who looked like they were in trouble. When I looked up, there was a deer right in front of my front wheel. There was no way to avoid hitting it. The deer died instantly, the bike was totaled, but despite sliding 20 yards on the pavement because I was wearing full gear I only had a slightly injured ankle. Very lucky.
jesse, we need to explain VTEC!
“V-Tec just kicked in yo” ok Jesse pinkman 😭
Jessie?? do you want to build a VTEEEEEC..... this kit says its plug and play. You said you won't race anymore, but come out the door, it's time to blow the competition awayyyy.
We used to race Mustangs, but that was then now, we're import guyyyyysss..
Do you want to build a VTEEEEEC, a Godzilla style VTEC....
🗿
it’s from a movie bro💀
i always read the phrase with Jesse's voice
My name is Skyler White yo.
"my name is skyler white Yo"
"My husband is walter white, yo?"
im jessy pinkman YO
@@GENUINEZR1 “uhuh”
He told me everything
I saw that short just before this one🤣
in Yamaha Aerox 155 its called VVA (Variable Valve Actuation) which activated only when we hit 6000rpm up and automatically deactivated below it.
so is it kind of like sega's blast processing? It is just a fancy word to describe something mundane lol
It means I get to hear sweet intake tones as I come by in my minivan
I recently rode a motorbike with VTEC and it was like being sent by a rubber band when you hit high revs. Very fun
Mm two stroke power band
Probably a two stroke. Works the same way!
I think most bikes have VTEC, and yes he's right they make all their power way up at 7-12k rpm
Bikes don’t use vtech the only new bike at east sport bike wise to get any sort of variable intake was the new 2024 Kawasaki zx10rr it’s just bikes tend to only make the main power high up in the rpm’s so it might feel similar to vtech
@@Reaperzx6 GSX-R 1000 has centrifugal VVT. With an increase in emission controls more bikes sport bikes might get it
Once upon a time I was driving next to my coworker on a freeway. Since he has a Supra, he took off ahead of me but eventually I caught up to him. He later asked me in front of everyone how I caught up to him so quickly & I said “my VTEC kicked in”. He stopped for a moment & replied confused “but you drive a Chrysler…” Everyone but him busted out laughing! 😂😂😂
I’m confused
@@levilangley8744 Jokes aside, most car brands have variable valve timing solutions. They can't call them VTEC though.
@@Tankwiper yeah, VANOS for bmw e.g.
even my 1.4l vw engine has it, so making slow cars go faster confirmed
Toyota got VVT-i
Same-Same LOL!!!!
Best explanation ever heard !!!
I like Hondas but don’t know how vetc works
When I had one ( pre-internet days) I went back into my local dealer to ask how it worked, and even they couldn't tell me. Took a bit of digging in them days to find out how it did it. Your video was very well described, the only thing you forgot to say was that it's oil pressure that controls the pin that melds the three lobes into one. Superbly built engine with 100bhp per litre, no small achievement for a small capacity mass produced engine. Also worth mentioning that honda didn't have a single VTEC failure in 10 million engines produced.
“Mo power babbyy”
Yo! That’s James fan right there!
T
E
S
T
I
F
Y
!
!
Mo powah babbyyyy
Ah, yes! And more hrsprs!
MO POWA
V-tec is also used on the exhaust side as well on quite a few engines
Thats the new style more for fuel efficiency. The one on the video is the older style mechanical way. Now its controlled by the cam phasers
To get passing grades at emission checks
How does the exhaust valves opening further help emissions?
@@johndoe-hu2ss it doesn't. But it does help with performance. In low rpm it runs in efficiency mode, in high rpm power mode.
@@johndoe-hu2ss it lets you pass smog 😏 lol
So I have owned many Hondas over my 41 years on this planet. I have built many slow cars that went fast because I installed a turbocharger onto them. My last built was a 1997 Honda Civic coupe that made 709 wheel horsepower at 34 psi of boost from a rather large turbocharger. The engine was from a DC2 Acura Integra Type-R and it was fully built with custom machined cylinder sleeves that strengthen the engine block, forged CP pistons, and forged Eagle connecting rods. It had ARP head studs, a fully ported and polished cylinder head, aftermarket Skunk2 Stage 4 Tuner Camshafts, Skunk2 dual valve springs, Ferrea valves, a 5 angle valve job, and Skunk2 lost motion assemblies (for the VTEC control). The engine was FULLY built to handle that amount of horsepower and plenty more. My best quarter mile time was 9.56@155 MPH. I hated to street race it because it was so fast that it would blow both front tires off from 1st through 4th gear up to 100 MPH. As soon as that engine hit VTEC under boost it was over for whoever I was racing.
The way the skin peels back off my face from the sheer force of vtec kicking in
Back in college we used to say vtec stood for Virtually Torque-less Economy Car.
Hehehe
These days I just wish I could afford one as a college student lmao
Torque is mostly a function of displacement, and Honda engines don't make any less torque for their displacement than equivalent cars. They just make loads more power since the engines are designed to run efficiently at far higher rpms.
Then those clowns never dropped it 2 gears & floored it instead of 1. Massive difference, even on my old SOHC 1.5 VTEC. I spent 15 minutes running up & down my favourite road p155ed off as hell till I thought, hmmm... maybe drop it 2.
Woosh!!.... VTEC magic
Here pizza bois use them
i love VTEC. Favorite part of my 94 integra GSR is the vtec crossover sound, shit's so satisfying
I honestly tried to buy a gsr but the seller stopped responding in classic marketplace style. to be fair I genuinely tried to buy 20 or 30 cars before the deal worked out. it seems like an awesome car.
My 92 GSR hit VTEC way harder
95 GSR w/ jdm B18C, full Borla exhaust and typical intake........I miss my baby, so many good canyon cruising memories! Topped it out at 149 mph on a slight downhill on I-215 in Utah, err I mean Mexico.
ASMR
My DC2 Type R sounds even better, It comes on even harder and with no sound deadening sounds even louder. Its so intoxicatingly good.
And quite the distinct sound! No denying that VTEC crossover! 💪 🏎 🔥
My 2008 Honda Odyssey touring edition has a VTEC… 31 MPG at 103hp
Damn bro u need that at 100hp, my dodge grand caravan has 320hp
Must be the stratified charge VTEC version, that is, the valve train must have VTEC on the exhaust side with smaller fuel injectors, and a low flow fuel pump.
This are 9,1 Litres/100km. Wow that sucks.
“And if you’re not that good at spelling the acronym makes total sense”
Lmao😂
It’s like having an upgraded cam shaft at high speeds
Very smart engineering
Incredible cover. Hilarious how you labeled the crescendo "time to cry" cuz I definitely caught a tear or two in my eye during that.
vvti just kicked in yo
Try 2zzge. That vvtl-i is nuts
Corvette needs to apply this technology into thier engines.
My Toyota Auris is a VTEC this explains a lot to me and now i can finally explain to the bois
Back in the day i had a '90 crx si with a b16a and it was a blast to drive. With good exhaust an intake you could really hear the vtec kick in yo! At about 4500 rpm. Pretty amazing technology for the 90s
crx is fun to drive
I MISS MY 90 CRX Si 😢
Informative and short, cool short!
Thanks for highlighting the acronym. Needed that😅
Wow, You do a great job at explaining detailed stuff to regular ppl! Thanx man ✌🏼
This is wrong. When you put your foot on the throttle VTEC go braaaap
I'm Walter white wife YO, and if you don't stop selling him weed YO
Bro just butchered the meme and hid the evidence
VTEC pop, is all I heard when I was in school at UTI! Didn't know what it meant until later , learning in school...
Only Honda owners know about .VTech gives more power to upper end . Great job Honda for giving me the spirit
You ever heard of the 2zz my boy
VTEC just kicked in 😂👍
"VTEC just kicked in, yo"
"My cars name is Tesla, yo"
That was the clearest information what i've ever saw in 60seconds. about cars....
I actually didn't know this , nice video man
The funny thing is that VTEC in both the motorcycles and cars are additional steps and parts used to impair air intake at low RPM and improve fuel consumption when you don't need the power. So technically VTEC kicks in when you're driving like a normal upstanding citizen and disengages when you're going pedal to the metal.
Brutal! Brutally honest too. A "variable geometry" turbo also uses also uses a movable restrictor with the same impeller. The blades don't actually change pitch like a plane or helicopter
the vtec in my car opens from 12v single intake valve to 16v, dual intake valve. interesting!
That’s a great explanation. I miss my 62 Ford Galaxy 500 and my 66 Pontiac Lemans with it’s 326 eight cylinder. .
Easy on components at low speed and idle, thumpier when it's needed. I've seen a heavy lumpy idle break a crank so yea I like this idea where the engine is otherwise easy on itself when at rest.
VTEC stands for: variable valve timing electronic control
Or just Variable Timing Electronic Control
It’s variable valve timing electronic lift and control. Lift is in there as well
That's vvtec
@@rdmz135 bruh
Very Tall Engine Cooling
More specifically (because words matter) ... it's the LARGER center cam that initiates the process for the increase in power. By switching to the center cam, which has a LARGER CAM, that is what causes the valves to open further once they are tied together with the pin. At that point the outer two cam lobes really aren't in use anymore. The center cam FULLY TAKES OVER THE LOAD, causing the valves to open further, allowing for more air, thus an increase in power ... and the outside two cams are essentially just a long for the ride. 😎👍
Thank you, this makes more sense than the animation.
OKAY!
Why not just use the center cam only?
This important info was not mentioned!
Low rpm is where torque is produced. Short duration valve timing is needed for low rpm stabilization, hence better torque. High rpm needs to 'breathe'- switch to long duration valve timing.
This is the best Channel for Automobile student like me 😁😁
I mean if every engineer explained things like this we'd have more engineers because more people would be intrigued and interested in science.
My 01 Accord felt fast as hell. 6 cylinder VTec. I still got destroyed by mustangs and all the popular Chevy cars but it was faster than most sedans. Could get to 60 pretty quickly. I no longer have it and now have a slower 4 cylinder car. But even it moves pretty swiftly at times. It’s built like a go kart.
200 hp is plenty to have fun and at the time was pretty much as powerful as common sedans got. (Except the then-new 222 hp Maxima).
Not sure what VTEC really added: Nissan and Toyota had ~200 hp from their 3.0Ls without any VVT.
Yamaha did similar with their dual runner intake, except that 3L car was as fast as the Mustangs and Camaros.
We can combine VTEC (variable cam lift and duration) with Ford's Ti-VCT (variable cam timing) in the coming electronically actuated valve systems. Along with Ford's current variable chamber volume, should be able to improve mileage even more AND both extend the rpm range and power peak.
Just gotta get past all this patent BS.
Got a low mileage 2012 v6 accord and still kicks in pretty hard on the highway. 4th gear pump from 60-90-110
@@nthgth Yea the 6s didn't have it like the Si i4s did. And when they did get it was on the Acura 3.2 Rl and TL.
S2000 is the best car ever made.
I miss the Del Sol honestly
I daily drive a 03 Honda Element. Vtec is a silly light-switch of an experience and it makes it really enjoyable to drive
I loved my vtech accord. Great gas mileage and power
All I used to know VTEC is VerY TaLL EnGine CoOLinG
Cultured unculturedism
It's a cool concept and it seems to work quite well....... The next step I want to see though in valve trains is wide adoption of free valve technology has the potential to be game changing and far better then VTEC
For those who don't know Free valve it's fully variable valve actuation that uses sensors computers and pneumatic actuators to run the valves on a engine completely replacing the cams no longer needed such as the camshaft, throttle body and many other parts saving weight and decreasing size of the engine in the process it's a revolution of how the valve train works similar to going from carburator to electronic fuel injection
That's another electronic function that's destined to fail that you can't fix yourself in your garage. Free valve is really cool and ingenious--I like it. You can call me old fashioned but I'll take a pushrod V8 with a blower or a turbo all day.
So what happens if there is a fault in the system? Is there a mechanical fall back so the valves don't lock up?
I'm always wary of complicated/complex components that are more than likely very expensive to fix (Look at you, Euro cars)
@@darkknight097 exactly my man. Car manufacturers today literally build cars so you have to bring them back to the dealer/manufacturer because they alone have the means to fix them. Do't like it.
@@rhull3939 people were saying the same things about fuel injection when they started to use It on motorbikes
There is really no point. All big manufacturers are going electric. There will be no more revolutions in ICE engines. We are peak ICE now.
Free valves been done anyway, cost over benefit it lost.
Its beyond genius just mindblowing always fascinated me
Wow that was a slap in my face.
"Makes slow car a little bit faster"😂😂😂
I love the vtec engines (dohc) and they'll always have a special place in my heart.
It's just because i almost have no time left to justify owning one😮💨
Vtec, I always thing of it in that it helps a larger port flow great at low rpm but also helps extend duration and height to get flow in the higher rpm because at higher rpm the valves are closed and opened for less duration of a period of the same time. This helps the cycle flow just as good as low rpm but not have the negatives of the intake pulses and mass of the air fighting the ports flow with a more aggressive cam. At a certain port size and length you can get a port to flow BETTER than or WORSE than what is observed on a flow bench, this is because a flow bench does not take into account of valve pulses from the open/close event and how duration (over a period of time) effect a ports flow due to the peaks and valleys of pressure from the pulses of the valves operation.
It is the pulses behavior in direct relation to how those pulses effect the weight of air that can either create a slight boost within the intake or creating a vacuum. This vis why vtec to me is nice and makes sense because for a given cam size that flows great at higher rpm isn't so great at lower rpm.
-+-+-+-+
VTEC only actives and locks the bigger cam lobe at 4500-4700 RPM, so it literally does nothing at all.....ever before you hit that RPM
This video perfectly demonstrates how VTEC kicked in, yo.
Informative and to the point. Very good. Ty
Vtec kicking in yoo’ 😂
It's oil controlled. They made us all become Honda master techs as well as ASE master techs when we were hired at the dealership. There's also more than one type of VTEC.
There's the economy version that many people mistake for the performance version.
Variable valve timing And lift electronic control just kicked in yo!
OMG THIS LAWNMOWER IS AMAZING!
Jesse pinkman explains V-TEC
V-TEC just kicked in yo
It's all fun and games until the Honda Civic hatchback enters the chat
Ohh they gona learn today what true speed is lol.
Thank you for explaining, yo
Thank you for reexplaining something every car guy knew in the early 2000’s…..
Laughs in Supercharged 572ci Big Block
You also get to laugh in 6 MPG
@@JosiahMamea no one builds a supercharged big block for fuel economy... we do it to fill our pools with hater tears ;)
What about MIVEC ?
"Mega Incredible Valve Erection Complete" or "MIVEC"
Mivec only works on the exhaust cam on the Evo 9 at least
@@jo-qp7mz It's like the VTEC on newer turbocharged engines. 👍
Mass Incompetence at Volunteer Electric Co-op?
They're the same thing from different manufacturers.
Honda: vtec
Mitsubishi: mivec
Toyota: vvt-i
Mazda: s-vt
Nissan: vvt
Ford: vct
Audi: valvelift
BMW: vanos
So on & so forth.
They're all based on similar concept & technology, with minor tweak here & there, depends on each manufacturer.
Brand neutral name for all of them is VVT.
I was today years old when i learnt this, thank you.
You can really feel the VTEC in the s2k, it's probably the best car to actually feel it in. Definitely the most fun car I've owned.
I can definitely feel VTEC in my 06 Si especially after fbo
The full sentence from abbreviations can make VVT too 😂
"VtEC JuSt KiCkEd In yO🤓"
At least you added the “yo” at the end, as is proper.
Okay very nice video thanks for explanation.
More lift, more power, more problems with more moving parts.
It’s a 4 cylinder LMAO
It might run a bit dirty but there's no comparison to a smoky rotary
Sounds like more parts more repair. Yes I'm aware...
Yup!
K.I.S.S. !
Nice explanation :D
The Honda prelude is a good example
Actually vtec was introduce to put more easy-going and “friendly” cam profile on a sporty engine
MOO POWAAA BABY
Appreciate the explanation brother! very nice and easy to understand. I sent this to all my motorhead buddies too!
I never knew that thank you I finally have my answer
Helps slow cars go slightly less slow* 🐌
"VTEC just kicked in YO"
I LITERALLY JUST FINISHED WATCHING THAT VIDEO, IM DEAD 🤣
Was one of me and my friends favorite things to say when we were young. All the sudden brrr goes to BRAAAAAAW!
Well done!
What an amazing design imo
“haha VTEC go vroom!”
Toyota VVT/VVT-I: 🗿
VVTLEC just kicked in yo!
Now this is Pod Racing!!
I used to love the sound of Vtec
Good video keep em coming
You forgot about the granny shifting, without this Vtec will never kick in, yo!
Lmao this might be the best video you’ve ever released. And I’ve been driving cars with vtec since I was 15.
9000 rpm Honda V-tech sounds like a motorbike on
full speed , It's just like beautyfull music.💪🏼
My Jimny needs a VTEC sticker