VTEC is all hype...

[Tugzy]

Is it or isn't it? . Almost every manufacturer has a form of Variable Valve timing but they dont advertise it as much as Honda. (ie. on the side of the Civic Si as a sticker).

You dont hear/read about Subaru owners talking about their ALVS system, heck-Chrysler dont even have a name for their's...
an interesting thought, ....discuss

VVT Variations
* Alfa Romeo Twin Spark - TS stands for "Twinspark" engine, it is equipped with Variable Valve Timing technology.
* BMW Valvetronic - Provides continuously variable lift for the intake valves; used in conjunction with Double VANOS.
* BMW VANOS - Varies intake timing by rotating the camshaft in relation to the gear.
* BMW Double VANOS - Continuously varies the timing of the intake and exhaust valves.
* Ford Variable Cam Timing - Varies valve timing by rotating the camshaft.
* DaimlerChrysler - Varies valve timing through the use of concentric camshafts developed by Mechadyne enabling dual-independent inlet/exhaust valve adjustment on the 2008 Dodge Viper.
* GM VVT - Varies valve timing continuously throughout the RPM range for both intake and exhaust for improved performance in both overhead valve and overhead cam engine applications.(See also Northstar System).
* GM DCVCP (Double Continuous Variable Cam Phasing) - Varies timing with hydraulic vane type phaser (see also Ecotec LE5).
* Holden Alloytec - Continuously variable camshaft phasing for inlet cams. Continuously variable camshaft phasing for inlet cams and exhaust cams (High Output Alloytec).
* Honda VTEC - Varies duration, timing and lift by switching between two different sets of cam lobes.
* Honda i-VTEC - In high-output DOHC 4 cylinder engines the i-VTEC system adds continuous intake cam phasing (timing) to traditional VTEC. In economy oriented SOHC and DOHC 4 cylinder engines the i-VTEC system increases engine efficiency by delaying the closure of the intake valves under certain conditions and by using an electronically controlled throttle valve to reduce pumping loss. In SOHC V6 engines the i-VTEC system is used to provide Variable Cylinder Management which deactivates one bank of 3 cylinders during low demand operation.
* Honda VTEC-E - Unlike most VTEC systems VTEC-E is not a cam switching system, instead it uses the VTEC mechanism to allow for a lean intake charge to be used by closing one intake valve under certain conditions.
* Hyundai MPI CVVT - Varies power, torque, exhaust system, and engine response.
* Kawasaki - Varies position of cam by changing oil pressure thereby advancing and retarding the valve timing, 2008 Concours 14.
* Lexus VVT-iE - Continuously varies the intake camshaft timing using an electric actuator.
* Mazda S-VT - Varies timing by rotating the camshaft.
* Mitsubishi MIVEC - Varies valve timing, duration and lift by switching between two different sets of cam lobes. The 4B1 engine series uses a different variant of MIVEC which varies timing (phase) of both intake and exhaust camshafts continuously.
* Nissan N-VCT - Varies the rotation of the cam(s) only, does not alter lift or duration of the valves.
* Nissan VVL - Varies timing, duration, and lift of the intake and exhaust valves by using two different sets of cam lobes.
* Nissan VVT introduced with the HR15DE, HR16DE, MR18DE and MR20DE new engines in September 2004 on the Nissan Tiida and North American version named Nissan Versa (in 2007); and finally the Nissan Sentra (in 2007).
* Nissan VVEL introduced with the VQ37VHR Nissan VQ engine engine in 2007 on the Infiniti G37.
* Porsche VarioCam - Varies intake timing by adjusting tension of a cam chain.
* Porsche VarioCam Plus - Varies intake valve timing by rotating the cam in relation to the cam sprocket as well as duration, timing and lift of the intake and exhaust valves by switching between two different sets of cam lobes.
* Proton Campro CPS - Debuted in the 2008 Proton Gen-2 CPS[2][3] and the 2008 Proton Waja CPS, said to be based on Lotus technology which developed Porsche's VarioCam.
* PSA Peugeot Citroën CVVT - Continuous variable valve timing.
* Renault Clio 182, Clio Cup and Clio V6 Mk2 VVT - variable valve timing.
* Rover VVC - Varies timing with an eccentric disc.
* Suzuki - VVT - Suzuki M engine
* Subaru AVCS - Varies timing (phase) with hydraulic pressure, used on turbocharged and six-cylinder Subaru engines.
* Subaru AVLS - Varies duration, timing and lift by switching between two different sets of cam lobes (similar to Honda VTEC). Used by non-turbocharged Subaru engines.
* Toyota VVT - Toyota 4A-GE 20-Valve engine introduced VVT in the 1992 Corolla GT-versions.
* Toyota VVT-i - Continuously varies the timing of the intake camshaft, or both the intake and exhaust camshafts (depending on application).
* Toyota VVTL-i - Continuously varies the timing of the intake valves. Varies duration, timing and lift of the intake and exhaust valves by switching between two different sets of cam lobes.
* Volkswagen & Audi - VVT introduced with later revisions of the 1.8t engine. Similar to VarioCam, the intake timing intentionally runs advanced and a retard point is calculated by the ECU. A hydraulic tensioner retards the intake timing.
* Volvo - CVVT
* Yamaha - VCT (Variable Cam Timing) Varies position of cam thereby advancing and retarding the valve timing.

Proton - VVT introduced in the Waja 1.8's F4P renault engine (toyota supplies the VVT to renault)

[errorunknown]

I'm just going to pretend you didn't say that

[TOMMIELOEKO]

Originally Posted by errorunknown

I'm just going to pretend you didn't say that

x2

why do you own one then????

[Dar-Dar]

toooo muchh infoooo. my brain is leaking.

[FG2uner]

thats prolly because honda invented vtec....

[datbacker59]

yea seriosly? you haten on us lol

[rickhilbert]

And your point is???

[FG-JOE]

so.......

[woznickiaj]

He cant back it up, idk why in the hell people knock on their own car haaahhhh that is so funny! Ok i just wasted 23,000 on my honda TW SEDAN and all i can do is knock on it. I think we have a serious case of bipolar disorder. Funny

[Tugzy]

Originally Posted by TOMMIELOEKO

x2

why do you own one then????

I own 3 Hondas
I like Honda's because of the reliability, resale value and fun factor. Do people buy Honda's just for the reason that it has VTEC? I dont.

Seriously, VTEC was new and big news back in 1987 (i think)? Everyone has it now.... i-DTEC however is very cool from a technical point of view.

Am I not going to get a mature discussion going here? I think its an interesting topic if you think about it.....

[asndragonboii]

I've never seen Honda advertise vtec to great lengths.

[sgtpruitt]

[cornerstrike]

Yes, many car manufacturers out there have a form of VVT, but Honda put it on the map. They may not have invented VVT, but they sure did show the world that you can get great fuel economy out of a low displacement engine and at the same time get great performance. VVT is most noticeable in Honda 4 Cyl engines then any other engines in the world.
Before my Si I owned an SVT Focus. It also had a form of VVT and while it did get good performance for a 2 liter, it does not compare to the K20 and it's i-Vtec system. The K series, F series and B series Honda engines really do feel like 2 engines in one. Great MPG and great performance for an NA engine.

[uknowuhateit]

Oh wow, Probably B/C vtec is one of the best systems out there. IMO. I would put my system against any one of those up there.

[till222]

"I've never seen Honda advertise vtec to great lengths."



Its not advertised anymore than the Toyota or another versions. Besides that sticker on the Si.

[Tugzy]

Everytime i pick up a Newspaper or Magazine, Honda road test or new car ad's...it has "VTEC" or "i-VTEC" all over it.

[Tastycakes]

It kinda is i guess when you look at it like that. I mean it is true almost every engine out there has variable valve timing now days.

But then again its how they market the Si. They make vtec very well noticeable.

[asndragonboii]

Originally Posted by Tugzy

Everytime i pick up a Newspaper or Magazine, Honda road test or new car ad's...it has "VTEC" or "i-VTEC" all over it.

Same thing for a toyota or any other brand. They say the new scion or whatever has the vvti whatchamacallit.

[uknowuhateit]

Well, if i was one of the competitors and my system sucked or didn't compete i wouldn't bring it up either... lol!

[mitsukaiSI]

Originally Posted by uknowuhateit

Oh wow, Probably B/C vtec is one of the best systems out there. IMO. I would put my system against any one of those up there.

^ exactly . . . most people have it but none do it NEAR as well/efficiant as honda does and honda didnt invent vvt it was audi or alfa romeo i think . . . some euro car anyways honda just made it better and continues to do so . . . and honda doesnt advertise vtec at all i think the MOST they do is mention it in the adds for the new si. . . definatly dont advertise vtec in the dx/lx/ex and also i could be wrong but do any of the other manufacturers have the equivilant or I-VTEC?