axenz axtiz in this case it its high vs low engine speed. Vtec engages when there is engine load on the engine, high rpms/revs when there’s no load won’t engage Vtec
Alex Fry yes before vtec engages the exhaust valve is still on a longer stroke than the intake. But that's ok as most efficient engines have larger exhaust valves. In this case the valves stroke is greater instead of larger diameter. Releasing 100% of combusted gasses is important during exhaust stroke.
The more "open" engine breathes better at high speed, that's why the valve opens deeper and longer. But to run a "radical cam" at idle, it's horrible for mileage and drivability; it has that uneven varuuUmp, varrUmp, varrUmp kind of idle like you've heard on funny cars and a few high-school kids with hot rods.
The hemi doesn't have variable lift, just variable cam phasing for valve timing. It's harder to find an engine without variable valve timing nowadays than with. The Tigershark engine, however, probably has one of the coolest variable valve timing/lift systems ever in Fiat's MultiAir 2. Parasitic loss is reduced with only a single camshaft and pumping losses are reduced with the ability to open and close valves at differe timing, lift height and multiple times in a single stroke.
vtec is simple with less to go wrong. Amazing power bans. Love honda's 1.5L vtec. I'm getting 36 mpg with my 2008 honda FIT 1.5L vtec. This car has awesome power too!
一般大家 耳熟能響 可變正時氣門 成為 各大車廠 利器，本田 又多了 可變揚程 的 壓縮空間，本田 直到2021年 又多了一個 競爭對手 那就是 日產 可變壓縮比新技能技術，又再度成為 本田 的壓力，一般 本田 只會出 前驅車 一般懂的 玩 雙B 車的 車主 都一致同仁說 要玩 本田車 不如玩 Acura，Acura 擅長使用 前中置V6 後驅，這種引擎設定方式 足夠造成 C32 與 M3 的 威脅
Love these old videos 😭
Best Vtec visual explanation ever
Love the music in between 😅
Tahdit On makes me feel like I'm watching an infomercial at 3am in 1989
豁然開朗 謝謝分享
改變進氣門大小 來增加進氣量 現在有缸內直噴還有渦輪增壓 通過電腦就能達到VTEC的效果吧
年轻人，这是1989年的科技怎么能和现在的科技比呢？
不一樣，而且這東西也是電腦在控制的。
現在有更多方式可以達成一樣效果
但欣賞舊時代工程師想出來的辦法也是一種樂趣
电脑再精密也无法模拟真实环境下速度和进气量变化的多少。因为变量太多。
有的是馬力
但你聽不到大家都無法抗拒的
vroooooo----- Baaaaaaaa的切換聲
So simple but so ingenious!!
One of the smartest inventions ever.
Thank you for posting, now i understand.
now i understand
Clístenes are you chinese?
Phroden Dekia lmao
不是高速，是高转数
Informative video,regular oil changes and good quality oil a must for engines like this
Eric the car guy said the only troubles he has seen with it not working properly are when the engine is a little low on oil. Keep your oil topped off.
学习使我快乐
I was expecting something in Japanese, not exactly Chinese. lol
in this model only one valve opens more after the sliding pins engages
Всё гениальное,просто!!! И придумали ещё в конце 90-х.
В конце 80-х вообще-то.
讚喔
Excellent video, thats why i love my K20 in my type R.
Vtech is awesome, although new Honda's have turbo & are more powerful, I really miss the glory days of Honda's Vtech
Hadi Khan why not enjoy both with a lil nos on the side. aye?
Hadi Khan its just vtec by the way it means Valve Timining Electronically controlled. vtech is a child's learning device I believe lol
我喜欢VTEC 有力啊👍👍👍
Sam Lim you are a cutie
現在代理商不進civic不知道在銃沙小
進來太貴 很少人買
台女只要台男買休旅
@@krisswnm 很奇怪，而且很多人都認為休旅就一定比較高級
@@balance277 車商洗腦的
很可惜 現在買休旅車的風氣把性能車壓到不進口了
Works on oil pressure.
MrRedeyedJedi oil pressure, coolant temperature and is electronically programmed at a certain RPM.
Also the amount of throttle affects.
So which is better vtec, vvl, vvti?
Excellent explanation!
2:04 & 5:29 為何第一搖臂（藍色）跟第二搖臂（綠色）開啟的氣門高度不同？
應當是爲了降低進氣量以達到較好的燃油經濟性。氣門高度低的進氣阻力大，可以進到較少的混合氣
利用進氣量差異來創造渦流 不過這是其中一種方式
還有活塞形狀、氣門時間甚至進氣歧管導流閥差等方式皆做得到
這就是為什麼會有一票人都愛的vtec聲
在一個特定轉速換另一種cam角度
除了後期省油版r18 跟k20很早開聽不到之外（有的是可變岐管
不然早年最低階的d16 就已經有大家愛的vtec切換
那些 雙凸H F B J K更不用說
只要是性能版的cam更大支
進排氣都有vtec搖臂跟不同角度的cam 切換超級大聲
VTEC GOES BwaaaaaaaaaAAAAAAAAAAAAHHHHHHHHHHHHH
My teacher says that it sounds like a cow mooing when ever she hears a honda. lol.
Always "buaaaAAAAAAAAAAAAAAAWEEEEEEEEEEE"
多謝～
Excellent Explanation!! thanks for Sharing
Всё гениальное нифига не просто 😎👌
2:08. *_VTEC KICKED IN, YO_*
這只有提到可變揚程的部分阿 可變正時沒提到
我也這樣想
No no no.. not high speed low speed... high rev and low rev.. high rev cause oil push the pin on VTEC :)
axenz axtiz they mean low and high engine speed, the higher the RPM's the faster the rotational speed of it's rotating components.
axenz axtiz thank you that was lost in translation
axenz axtiz in this case it its high vs low engine speed. Vtec engages when there is engine load on the engine, high rpms/revs when there’s no load won’t engage Vtec
優質
VTEC just kicked in yo
VTEC bro!
Wtf?? Japanese video but the voice over is in chinese language???
Lhonzkieee Leal Yeah like wtf? Wasn't expecting that
Is it really?
Chinese intellectual property theft demo for their scientists to rip off
The Real Elvis yeah you're an idiot. It's either a training video for Chinese Honda dealerships. Or Chinese Honda factories.
The Real Elvis yeah you're an idiot. It's either a training video for Chinese Honda dealerships. Or Chinese Honda factories.
VTEC Kicks in
so at low rpm, one of the valves is still riding that aggressive cam profile?
Alex Fry correct although throughout all of their engines the profiles and ways in
which the vtec work differ greatly.
Alex Fry yes before vtec engages the exhaust valve is still on a longer stroke than the intake. But that's ok as most efficient engines have larger exhaust valves. In this case the valves stroke is greater instead of larger diameter. Releasing 100% of combusted gasses is important during exhaust stroke.
Japanese, japanese japanese VTEC more japanese
It was chinese language.
Амбарный Замок :O
I was wondering why it was in chinese and not japanese.
Phroden Dekia
So you came to some clue?
Амбарный Замок illuminate us, master
Smart Japanese base on video not the language
應該是利用機油壓力用液壓頂開叉銷。
高速時機油壓力會升高。連帶頂開叉銷
Sweet late 1980’s
I understand nothing
Is that DBZ music ?
Thats what she said
I don't see that for ordinary people. I can imagine the issues of this engines when they run using bad oil.
are you kidding me ?
OldStars59 too sofisticated engine.
Royal purple
Jake Heke don’t talk wet only certain Honda engines run this
Jake Heke really check again knobhead
🙏
Mas claro ni el agua. Saludos desde México.
All I need to know is when Vtec kicks in?
Around 3,000 RPM, when the oil temp is > 130ºF
V-TEC in a nutsheel
Зачёт видос!
И получился вечный 2 литровый движок
I was hoping/expecting to hear, "Maddafakkin Veetec one klazee neegah, neegah!"
That explained it.
This was back when Honda needed money from Taiwanese SYM to bail them out.
is it me or at high speed (vtec activaded) the valves open earlier and close a little bit later?
Correct. They let more gas and air (oxygen) when opened longer giving more power but on the expense of more gas consumption
The more "open" engine breathes better at high speed, that's why the valve opens deeper and longer. But to run a "radical cam" at idle, it's horrible for mileage and drivability; it has that uneven varuuUmp, varrUmp, varrUmp kind of idle like you've heard on funny cars and a few high-school kids with hot rods.
Ugh! I was hoping to hear some bad voiceover work like in kung fu movies...very disappointed!!!
Japanese innovation!
Hell my 3.6 Dodge has Vtech now or VVT variable valve timing they don’t use Honda’s catchy name for it obviously.
VVT isn't the same thing. VTEC controls valve lift and duration, iVTEC is VTEC + VVT. Controlling valve lift, duration and timing
You can't beat a Honda Mivec
Honda’s aren’t fast even with vtec
@@dennistv598 durk, no
Dojo Works - Brick Building truth unless modded all cars have VTEC it’s just in a different name
@@dennistv598 durk, yes
Dojo Works - Brick Building honda mivec?!?!? 🤦🏻♂️😂
ㄏㄏ沒人
honda最棒
Incrível!
Why in Chinese?Why
it’s fucking VTEC, i get it.
Whats Vtec
Very Tall Engine Coolent 😂😂😂
K1lluminati 4 Life tiny
Chill boomer
Hola amigos
самое гениальное изобретение в ДВС за всю его историю!
Николай Мёдов так придумали ещё в конце 90ых.
Yaas
AMLO presidente!
Jajaja no se que tiene que ver eso aqui. Pero lo bueno es que ya es nuestro presidente.
تبتات النضام القديم الحديث بطل صار يشدو
Chinese? Something's not quite right
Made in other countries no good honda
Honda only Japan good
Naruto susuke subaru desune V-TEC honda subaru ferrari lamborghini subaru cheese burger, perfect japanese ;)
Someone should tell over posted this video that this is Japanese not Chinese
Jose Lambert
The title means that there are subtitles in Chinese, not that the video itself is Chinese.
I don't speak either of them, but it sounds like chinese.
Jose Lambert narrated in Traditional Chinese
chinese is a language or a person, the country call china, also Japanese is a language or person， the country call japan😂
хае Ёе баэ
темперамент дерзкий у моей девочки табун коней и 9100 отсечка
The Honda was the first Vitech the. They the domestics copy them the one works nice is the hemi 5.7 but cam got failure they didn’t designed it right
The hemi doesn't have variable lift, just variable cam phasing for valve timing. It's harder to find an engine without variable valve timing nowadays than with.
The Tigershark engine, however, probably has one of the coolest variable valve timing/lift systems ever in Fiat's MultiAir 2. Parasitic loss is reduced with only a single camshaft and pumping losses are reduced with the ability to open and close valves at differe timing, lift height and multiple times in a single stroke.
VTEC yo, lol.
そうか vtec は中国が作ったのか 😸💦💦
kihiro oe ？
這是台灣製作的影片，不是中國。
Lol, its in mandarin.
Cortacesped
Jdm af!
No english subtitles. Waste of time
How about learning some Chinese, like everyone is learning English to understand English subtitles.
@@ryanweng3295 no
i may help you to translate it
Americans are lazy even to learn a language. The video is perfectly understandable even without subtitles 🙄
@@ryanweng3295 lmfao
VTEC just kicked in yo
So which is better vtec, vvl, vvti?
vtec is simple with less to go wrong. Amazing power bans. Love honda's 1.5L vtec. I'm getting 36 mpg with my 2008 honda FIT 1.5L vtec. This car has awesome power too!