iVTEC How it Works -EricTheCarGuy

iVTEC How it Works is a long standing requested video. Back with I did the video on the VTEC explanation I was asked about doing a video on iVTEC which is slightly different than VTEC. First you need to understand the basic operation of the cam shaft, once you have that, and you know a little about how that cam shaft effects performance, you can then begin to understand how iVTEC works. In essence, as far as the Honda system is concerned, it varies the cam 'timing' to optimize performance and fuel economy. Many companies employ similar systems to this but they may perform the operation differently. This video focuses on the Honda iVTEC system.
That said, you may notice that the VTEC system on this K series is a little different in that instead of having a cam with a higher lift and duration, it switches between 1 and 2 valves on the intake side. So when VTEC engages on this engine it actually activates another valve in the cylinder instead of changing lift and duration. It still alters cam timing via the iVTEC system however. Once again, to optimize power output and fuel economy.
Either way, I hope this video helps with your understanding of camshafts, cam timing, lift, duration, VTEC, and iVTEC systems.
Thanks for watching.
The best place for answers to your automotive questions: www.ericthecarguy.com
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[@wsman1098]

Beautiful, Superb, difficult concepts in the most simple and practical terms. Congrats Eric you cleared all my concepts regarding the iVTEC. Two thumbs up for you.

[@ericthecarguy]

In case you ever wondered how iVTEC works. kzbin.info/www/bejne/iXO9fZaeZsysla8

[@biancaboobchamp1078]

Everyday is a learning day. Thanks Eric 💋🎬🇬🇧♥️⛄️

[@Erik_Swiger]

I heard a rumor that somebody was bypassing all this complexity and going straight to fully-hydraulically-actuated valves, controlled by electronic signals. It allows full control of lift and duration at all engine speeds.

[@zzzingrol]

Erik Swiger F1 has been doing it for years.

[@xFreeland1]

Erik Swiger koeniggsegg has been doing this for a while. (Correct me if I'm wrong)

[@TheBrownGarage]

xFreeland1 nope your right, i saw a vid by them a few years ago and they had modified a Suzuki head and they were runnin the engine with no cams, all hydro valves computer controlled

[@Michiganborn1969]

I love the way you explain things that are usually complicated to explain into way even a non-technical person can understand.

[@federalrj94]

Another awesome educational video from ETCG! I've always wondered what the difference was in all vtec systems now a days. Plus for someone like me I've done better with instructional videos than just straight reading it out of a book. You have no idea how thankful I am for guys like you to share knowledge like this.

[@dolssondko]

Awesome video Eric. The analogy between computer program and what the cam shaft does for the engine was done!

[@tdcblackmamba4787]

A very informative video, Eric you are really knowledgeable on every topic discussed. I enjoy all your videos. Keep it up man, you're doing an awesome job. 😁👍🏼

[@Subawu_jku]

Eric you have a great channel I've seen so many of your videos from fixing CMC to complete clutch replacement. great stuff man!!

[@christianpetersen1782]

Excellent. Thank you very much for describing it so clearly and not speaking too fast like others I’ve seen on here. Good job.

[@That1BlkDude]

This series should be called "Eric Explains..."

[@Larpy1933]

Thanks. And very well done. Much more informative than several other well-known channels.

[@WAVETUBE84]

Hondas are really good cars!

[@kerron_]

266k Hell yea

[@thomasy76]

Hell yeah i just got myself a 06 honda accord LX 4 cylinder just now gettin broke in lol at 100k got it with 99,000 before i had a 08 toyota corolla until i totaled it n i gotta say i like my honda accord way better than i did with my toyota corolla its hard 2 say which 1 is better 2 me toyota and honda are about the same in terms of reliability but i always heard hondas automatic transmissions are a little on the weak side thats why im making sure mine i change the tranny fluid and filter and when i do that gonna put lucas transmission stop slip in there thats the only down side with honda is there automatic transmissions are on the weak side so if you wanna stomp on the gas and b race car driver your best bet is to get a manual trans. But as long as your doing normal everyday driving and dnt beat the shit outta your honda race it then the auto tran. Should last i would think

[@robt6127]

Thumbnail of video reads "ivetc" if no one has told you enough yet :-p always great info, Eric. Always humbling what little car knowledge i have. Hope everyone had a merry christmas, and happy new year!

[@ericthecarguy]

Rob T Fixed it. Thanks.

[@aswad7368]

Amazing video, I learned so much! This is my first time watching a video on this channel and I am happy to subscribe :) Keep up the great work.

[@sdietri22]

Eric, Thanks for having a Honda Element! I haven't found a shop manual specifically for the Element, but I have made repairs by referencing your videos. I also enjoy your videos that don't feature the Element. Thanks for being there!

[@teddyruxbin7769]

always awesome work on your vids. I've been getting information from you for years and would like to say thank you.

[@komanemolefe107]

Thanks for this video Eric...i have been following your excellent educational lessons and this brought more clarity into how these systems work and relate. Please keep the good work up because students and professionals on the field are banking you guys.

[@Dieaap]

Great learning session. I appreciate your concise way of explaining - makes things really easy to understand. Thanks.

[@anaeleraphael8725]

I like the -physicist-way you present your explanations. it is because you teach the principles, so understanding it is easy. thanks a lot. Nigeria.

[@ARayMaddy]

Great job as always Eric!

[@InsertFlashyName]

Fantastic explanation in very understandable terms. Another great video!

[@johnkinnane547]

Thaks Eric that gave me a better understanding of my Honda Accord Euro IVTEC engine. I never could get my head around how it worked! Thanks Mate Johnno

[@evilcowboy]

very detailed and good piece of information. Seems from what I know is it is exactly the same thing as VVT. You've done a good job of explaining it.

[@djwak59]

As usual, thanks for the video on Honda product. I've got a 2003 Element still goin strong, and have checked out your vids several times for info. Keep those Element vids comin' ! Thanks again, very informative.

[@LJC123]

Thanks so much for this. I'm just learning about engines and you explain things well! Keep the info. coming our way! 😀

[@jamesdahmer5027]

Eric man; you, sir are a mechanical genius. I greatly appreciate your abundant wealth of knowledge, nay, even. Your ability to deliver said knowledge. We're not worthy!

[@SebSar-ef4zj]

A foolproof demonstration and explanation. , Thank you very much.

[@antoniocarrasco3808]

Loving your videos, very informal, keep up the good work

[@iandaphmckenzie9257]

Thanks Eric. Just learning about i-vetec & vetec.

[@OctavianHorn]

Thank you for this great explanation video!

[@goodsh1t92]

Just like all of your videos, super helpful. Thanks bro!

[@Mr.M1STER]

This is why I love hondas.

[@Rsguy1776]

thank you for this helpful video, I am excited to see more.

[@wrenchgeoff989]

Well said... Thanks for the infos and keep it up master mechanic ETCG!

[@PL-KLIPHZZX]

Thanks Eric for the informative videos

[@TranceAddictFoX]

Very informative. Thanks again Eric

[@ctscantechnologist]

Very good video. Very informative. Thank you for posting it....

[@yearbattery]

Hi Eric, I like your video a lot, I can learn a lot from you....

[@grantlarmstrong]

Great info and well explained.

[@shivarajkumarkalsa7203]

Excellent video sir.

[@HusamGibreel]

Thank you Eric very valuable information

[@EddieNYC02]

Thanks for the info, very interesting.

[@paulocaetano4339]

I like your videos. THey are well detailed.

[@shaneklazema6912]

very very good video Eric

[@bikemaurice1953]

Thanx muchissimo for the simple explenation on a complex topic ^_^

[@VoodooZ]

thanks. Very enlightening video.

[@carslover3509]

great report thank Eric

[@vasily9864]

great video!

[@someusername121]

A good followup video called "The Future of the Internal Combustion Engine - /Inside Koenigsegg" shows an engine that instead of using a camshaft, each valve is individually controlled by a electromagnet. Basically makes it so each cylinder can have its intake and exhaust individually tuned.

[@jacobekoba200]

Each time I watch your video clips always so much to learn and so much to gain from them.Good explanation and good teaching right there. Thumbs up for you Eric.Aziegbemhinjacobpe.

[@abaubaidah]

Excellent video

[@marklennon1]

Good description!

[@cigarobsession]

Awesome video man I love learning!

[@zzzdogutube]

Thanks for the education..

[@Seegalgalguntijak]

EricTheCarGuy Please make a video in which you explain the Atkinson cycle and it's pros and cons, as well as the (so they say) 'pseudo-Atikinson cycle' that Toyota uses in their hybrid vehicle engines and what that's all about! Oh, and: Happy Christmas to you and your family, as well as a good start into the new year!

[@johnreid859]

Thanks for the look at the dual and single overhead cams and the explanation. It you take the i part of the cam apart, make a video, I'm kind of curious what that looks like.

[@SciFlyZ]

great break down thanks.

[@SpacemanXC]

I've really gotten into Honda engines over the last few years. They're very interesting. My current dream car is a Lotus Elise with a super charged K24. Just gotta make sure I keep enough money in the bank. So I can jump on the first one I see with a blown Rover engine. And hopefully get it for dirt cheep!

[@SpacemanXC]

nicewknd They started with the Rover, then switched to the Toyota a few years later.

[@rokkopg2414]

Great video

[@RGaneshOneFive]

Lol, the thumbnail brought me here. Waiting for the "VETEC" to kick in.

[@biopqq836]

Thanks Eric!

[@raihanabbas9960]

thank you eric ☺

[@aboveall8694]

great video

[@atillalawyer8526]

thanks Bro am from Iraqشكرا اخي انا من العراق

[@dineshmourya904]

Keep the video short. Straight to the point. This video can be done in less than 5 minutes

[@Paint0nBrush]

that's a fancy music box you got there.

[@nintendoatarikiller]

This is the engine that kids like!

[@dosman01302]

VERY important to change the oil regularly in those engines! Especially GM Ecotec!

[@OceanJackson40]

Good information.

[@tannerhalo3]

Question!! So if it controls breathing for the engine in a nut shell and the power, how much power to the wheels does IVTEC increase?

[@hyundaiverna]

will be great when engines finally have solenoids to control valves so we can have infinite variable valve timing for each valve

[@johanneswarn5488]

Koenigsegg now uses pneumatic for their valves instead of camshafts. I would imagine those are pretty much as variable as you'd want them to be. Cool technology for sure.

[@The_Noticer.]

@@johanneswarn5488 But for a reason on a car as expensive as that. It'll for sure be less reliable and more expensive.

[@janrichter7965]

groso, muy bien explicado. Fenomeno

[@abdalqadr1]

Perfect you are my genius

[@trankt54155]

Eric, are lobes always machined from a block as parts of the camshaft or can they be screwed onto the camshaft at different angles with Allen screws?

[@thomasmcintosh8152]

Thank you!

[@brendanlawlor1906]

"""You know your stuff , well done """

[@DV8T1]

Eric want to thank you for all your great educational videos. I have a Question I've surfed the web looking for an answer maybe I'm just not wording things right. But i hope you may have some insight. So i bought my sons 1st car he wanted something to work on, we found a 1993 Honda civic DX Automatic with a D16Z6 VTEC in it. I noticed the Solenoid & pressure switch where not connected with wires actually cut. The VTEC is not working cause its not connected, I've looked and there is plenty of instructions on how to connect VTEC for a manual transmission using wires to the ECU seems simple enough. But i haven't found a video or any 1 talking about how to do a automatic for VTEC 1 video said opening up the ECU & having to unsolder & re-solder something in the ECU? Now can this be done or am i just stuck? Thank you once again. J & Aron in TN.

[@sam111880]

hummm curious i haven't study closely the exhaust cam lobes to the intake lobes is there a 90 degree out of phase or something curious if they are all out of phase by a certain amount or if they all are a little different in phases.... i know they can have different durations (or sharper/longer lobes but not sure if there phase degrees between the exhaust and intake are always around the same for non vtec as well as vtec) ... it would stand to reason that one could make VTEC/iVETC all off of a motor or electrical means without any pully wheel or sprocket for the cam to get more optimal computerized timing some day

[@ablackformula]

at 4:05, where the head is installed on the car-- why does the intake cam only appear to have a lobe with actual lift on the center? the lobe next to it seems to be just flat round. does this engine use the vtec solenoid to actuate a different cam profile or just to keep one intake valve from opening, increasing fuel economy?

[@ParadoxdesignsOrg]

Nicely explained. It's still no turbo though!

[@latinrider1809]

hey i got a question,. when you did the k24 swap, can you use the jdm motor with out the vtec solenoid, i seen the new engine did not have the vtec solenoid and you add it, so can i use that engine with out it or do i need the jdm ecm if i dont want to ad the vtec solenoid???

[@henrietn]

Explained well,!

[@guzforce]

Dear sir, Please could you explain the iVTEC system specific setup on J35 Accord engines 8th gen + up? Answering: 1- if it has any affect on performance like usual VTECs? 2- How it really works to disable cylinder banks? 3-If it reduce compression during could start or whats happen during start making sound much higher and lower down after some seconds?

[@jakesnake_27]

Just had to replace that VTEC solenoid on my 02 CRV. Great video and explanation!

[@marcusbrailey3091]

Just got me a civic si n i want to know how to lower it . How do i go about doing that ?? HELP PLEASE ....

[@hindflight]

Great Video! I think BMW accomplishes this same task with its "VANOS" system..

[@TheVaevictus24601]

So if i use the wrong type of oil will it effect my variable valve timing. if you have a higher max oil pressure will you get a different amount of timing variability?

[@daveduznotrull]

have you been watching MIGHTY CAR MODS? HAHA cool video Eric! hope you had a great christmas and have a great new year.

[@durunggabika8915]

thank you

[@waynewilliams1487]

My bump stick has timing issues(it shoots out too early) but i still have fun with my bump stick. Wine helps me delay my timing a bit😝

[@thetsuchiyasan1000]

k-series are great engine!

[@The_Noticer.]

Actually, the head he took out of the civic was an R-series.

[@ridhoso]

does anyone know at what rpm i-VTEC work? especially on L12B i-VTEC

[@JasonTylerRicci]

I'm new to the Honda world. My '98 EX Auto seems to engage VTEC at various rev ranges. Sound right?

[@keerthidhanalaxmi4489]

i- Dtec best or ivtec , I mean petrol r diesel in Honda which is best in fuel economy and good starting point..while r not used for a week in car

[@daviderhahon]

Awesome.

[@zzzingrol]

It would be interesting to see power and torque curves with and without ivtec active.

[@trankt54155]

Use Google to look it up...

[@joepdewinkel2569]

my dad has a 2012 civic with i-vtec any body nows how and when is ingages

[@muai5025]

We got Honda CRV2 executive with a 2,0L engine with 150PS/HP and 200NM what do you think guys how much power can this engine have, its a DOHC I-VTEC engine???

[@henrylee2964]

Hi Eric: based on Honda service bulletin 13-085, the Honda J-series engine with iVTEC system causes the engine to start prematurely oil burning in cylinders 1 ,2 ,3. Apparently, when iVTEC engages, this causes the rings to roll on the pistons which in turns causes oil burning. Can you shed some illumination on this topic. I dont understand what is going on. Can you do a video on this interesting situatioin?

[@prm5798]

So when the vtc actuator (intake cam gear) is locked what phase of cam timing is taking place? Like when the engine is off, is the gear locked or unlocked? Thanks

[@mikebyson8757]

love it