Honda Civic / Del Sol (1992 - 2000) EG/EH/EJ/EK/EM1 Discussion

what is the difference between v-tech and i v-tech

Thread Tools
 
Search this Thread
 
Old May 13, 2006 | 12:27 PM
  #1  
tico's Avatar
Thread Starter
Honda-Tech Member
 
Joined: Apr 2006
Posts: 462
Likes: 0
From: Walnut, CA, US
Default what is the difference between v-tech and i v-tech

what is the difference between v-tech and i v-tech
Reply
Old May 13, 2006 | 12:36 PM
  #2  
Targa250R's Avatar
be professional
 
Joined: Oct 2002
Posts: 14,842
Likes: 13
From: Pittsburgh, PA
Default Re: what is the difference between v-tech and i v-tech (tico)

It depends on which versions of VTEC and i-VTEC you are talking about. There are no less than 3 different versions of VTEC, and 4 completely different versions of i-VTEC.
Reply
Old May 13, 2006 | 12:44 PM
  #3  
siguy4's Avatar
 
Joined: May 2006
Posts: 16
Likes: 0
From: greenfield, wi, united states
Default Re: what is the difference between v-tech and i v-tech (tico)

im not a big fan of the i Vtec motors. Vtec isnt as loud.
Reply
Old May 13, 2006 | 12:46 PM
  #4  
Targa250R's Avatar
be professional
 
Joined: Oct 2002
Posts: 14,842
Likes: 13
From: Pittsburgh, PA
Default Re: what is the difference between v-tech and i v-tech (siguy4)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by siguy4 &raquo;</TD></TR><TR><TD CLASS="quote">im not a big fan of the i Vtec motors. Vtec isnt as loud. </TD></TR></TABLE>
Yeah, since we all know that sound is an oh-so-important factor of engine performance.
Reply
Old May 13, 2006 | 12:53 PM
  #5  
rigles1's Avatar
Junior Member
 
Joined: May 2006
Posts: 24
Likes: 0
Default Re: what is the difference between v-tech and i v-tech (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
Yeah, since we all know that sound is an oh-so-important factor of engine performance. </TD></TR></TABLE>

HAHAHA.
Reply
Old May 13, 2006 | 12:58 PM
  #6  
Han Solo's Avatar
Honda-Tech Member
 
Joined: May 2005
Posts: 1,655
Likes: 0
From: Minneap
Default Re: what is the difference between v-tech and i v-tech (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
Yeah, since we all know that sound is an oh-so-important factor of engine performance. </TD></TR></TABLE> who said anything about performance? i love the sound when VTEC kicks in and wouldnt give it up for the world.
Reply
Old May 13, 2006 | 01:00 PM
  #7  
siguy4's Avatar
 
Joined: May 2006
Posts: 16
Likes: 0
From: greenfield, wi, united states
Default Re: what is the difference between v-tech and i v-tech (rigles1)

I agree Im just a b-series fan
Reply
Old May 13, 2006 | 01:02 PM
  #8  
Targa250R's Avatar
be professional
 
Joined: Oct 2002
Posts: 14,842
Likes: 13
From: Pittsburgh, PA
Default Re: what is the difference between v-tech and i v-tech (KINGSOL18)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by KINGSOL18 &raquo;</TD></TR><TR><TD CLASS="quote"> who said anything about performance? i love the sound when VTEC kicks in and wouldnt give it up for the world.</TD></TR></TABLE>
You're definitely a ****** then.
Reply
Old May 13, 2006 | 01:10 PM
  #9  
Soccerking3000's Avatar
Honda-Tech Member
 
Joined: Oct 2003
Posts: 6,281
Likes: 0
From: Catching Rivers on Fire TWICE
Default Re: what is the difference between v-tech and i v-tech (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">You're definitely a ****** then.</TD></TR></TABLE>

hahaha, but yea you are
Reply
Old May 13, 2006 | 01:14 PM
  #10  
amej8's Avatar
Honda-Tech Member
 
Joined: Jul 2005
Posts: 1,392
Likes: 0
From: New York
Default Re: what is the difference between v-tech and i v-tech

so getting back to the OP and actually trying NOT to make this thread filled with a bunch of stupid *** posts...

1 obvious difference is the sound. and something like i-vtec has a good powerband throughout all rpm's whereas vtec has a certain point where a lobe on the cam opens up allowing more air intake/fuel combustion which = more power
Reply
Old May 13, 2006 | 01:15 PM
  #11  
Out of every
 
Joined: Nov 2005
Posts: 2,725
Likes: 0
From: so cal
Default Re: what is the difference between v-tech and i v-tech (Soccerking3000)

ones smarter than the other

vtec = stupid
i vtec = smarter because the i stands for intelligent
Reply
Old May 13, 2006 | 01:16 PM
  #12  
Out of every
 
Joined: Nov 2005
Posts: 2,725
Likes: 0
From: so cal
Default Re: what is the difference between v-tech and i v-tech (e gee two)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tico &raquo;</TD></TR><TR><TD CLASS="quote">what is the difference between v-tech and i v-tech</TD></TR></TABLE>

wait hes talking about the phones... duhh.. okay one has more reception then the other
Reply
Old May 13, 2006 | 01:20 PM
  #13  
Targa250R's Avatar
be professional
 
Joined: Oct 2002
Posts: 14,842
Likes: 13
From: Pittsburgh, PA
Default Re: what is the difference between v-tech and i v-tech (e gee two)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by e gee two &raquo;</TD></TR><TR><TD CLASS="quote">wait hes talking about the phones... duhh.. okay one has more reception then the other </TD></TR></TABLE>
How did I know that was coming

It's old. Seriously. It was funny several years ago; now it's just annoying. Give it up.
Reply
Old May 13, 2006 | 01:22 PM
  #14  
Out of every
 
Joined: Nov 2005
Posts: 2,725
Likes: 0
From: so cal
Default Re: what is the difference between v-tech and i v-tech (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
How did I know that was coming

It's old. Seriously. It was funny several years ago; now it's just annoying. Give it up.</TD></TR></TABLE>

it will never be old if it keeps on getting brought up. sorry mr serious
Reply
Old May 13, 2006 | 01:29 PM
  #15  
E36 Guy's Avatar
Honda-Tech Member
 
Joined: Jul 2003
Posts: 3,513
Likes: 0
From: Earf
Default Re: what is the difference between v-tech and i v-tech (e gee two)

wow
Reply
Old May 13, 2006 | 01:32 PM
  #16  
fwdtamiya's Avatar
Honda-Tech Member
 
Joined: Dec 2004
Posts: 5,228
Likes: 0
Default Re: what is the difference between v-tech and i v-tech (Targa250R)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">You're definitely a ****** then.</TD></TR></TABLE>
Reply
Old May 13, 2006 | 02:29 PM
  #17  
civic_fan's Avatar
Junior Member
 
Joined: Dec 2004
Posts: 404
Likes: 0
From: Ottawa, Ontario, Canada
Default Re: what is the difference between v-tech and i v-tech (fwdtamiya)

So sorry....I seemed to have angered the poster below with my simplified version that had some mistakes in it. See my post further down for more info on the difference.


Modified by civic_fan at 3:48 PM 5/13/2006


Modified by civic_fan at 3:49 PM 5/13/2006
Reply
Old May 13, 2006 | 02:32 PM
  #18  
Targa250R's Avatar
be professional
 
Joined: Oct 2002
Posts: 14,842
Likes: 13
From: Pittsburgh, PA
Default Re: what is the difference between v-tech and i v-tech (civic_fan)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civic_fan &raquo;</TD></TR><TR><TD CLASS="quote">To simplify without going into the different types of VTEC and i-VTEC, the main difference is that VTEC only modifes the duration and lift of the exhaust cam. With i-VTEC, the duration and lift on the exhaust cam is still present, but it is also present on the intake cam. As well, the computer is "smarter" as to when to engage the VTEC on both cams.</TD></TR></TABLE>
That's very inaccurate. Or rather, straight up wrong.

&lt;sigh&gt; Give me a half hour or so and I will write up a quick run-through of all the different forms of both VTEC and i-VTEC to clear this up.
Reply
Old May 13, 2006 | 02:36 PM
  #19  
JDM-97CX's Avatar
Member
 
Joined: Mar 2003
Posts: 4,621
Likes: 2
From: Beatin Up Bums, USA, USA
Default Re: what is the difference between v-tech and i v-tech (e gee two)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by e gee two &raquo;</TD></TR><TR><TD CLASS="quote">it will never be old if it keeps on getting brought up. sorry mr serious</TD></TR></TABLE>

No, it is getting old. All that needs to be done is to answer the guys question. You don't have to make some smart *** comment just because some one doesn't know any better. Grow up.
Reply
Old May 13, 2006 | 02:43 PM
  #20  
civic_fan's Avatar
Junior Member
 
Joined: Dec 2004
Posts: 404
Likes: 0
From: Ottawa, Ontario, Canada
Default Re: what is the difference between v-tech and i v-tech (Targa250R)

sorry....I made a mistake in how i wrote my original post up, however, I was merely attempting to point out the main differences between the two (ie. that VTEC deals with the exhaust cam and i-VTEC deals with both cams). To go into great detail on how each type works as well as going into technical explanations will be fruitless as the original postermost likely does not know how either work. Nonetheless, I'm not about to get into a knowledge pissing match with you. I concede....you are smarter than I.

Reference:

go to this link for info on the different types

i-VTEC

i-VTEC introduced continuously variable camshaft phasing on the intake cam of DOHC VTEC engines. Valve lift and duration are still limited to distinct low and high rpm profiles, but the intake camshaft is now capable of advancing between 25 and 50 degrees (depending upon engine configuration) during operation. Phase changes are implemented by a computer controlled, oil driven adjustable cam gear. Phasing is determined by a combination of engine load and rpm, ranging from fully retarded at idle to maximum advance at full throttle and low rpms. The effect is further optimization of torque output, especially at low and midrange RPMs.


Edited for spelling


Modified by civic_fan at 4:10 PM 5/13/2006
Reply
Old May 13, 2006 | 03:36 PM
  #21  
Out of every
 
Joined: Nov 2005
Posts: 2,725
Likes: 0
From: so cal
Default Re: what is the difference between v-tech and i v-tech (JDM-97CX)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM-97CX &raquo;</TD></TR><TR><TD CLASS="quote">No, it is getting old. All that needs to be done is to answer the guys question. You don't have to make some smart *** comment just because some one doesn't know any better. Grow up.</TD></TR></TABLE>

oh fucken spare me the lecture bro.. you mean to tell me you have never made a smart *** post on your whole time on h-t? yeah dude whatever. i said it with humor. sorry your *** is getting old, but dont blame me. also, its called tough love and everyone does it on ht and by joking about it he will never get the 2 mixed up. way to kill humor
Reply
Old May 13, 2006 | 10:11 PM
  #22  
JDM B16A's Avatar
Senior Member
 
Joined: Mar 2006
Posts: 468
Likes: 0
From: Garden Grove, ca, United State
Default Re: what is the difference between v-tech and i v-tech (e gee two)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by e gee two &raquo;</TD></TR><TR><TD CLASS="quote">

oh fucken spare me the lecture bro.. you mean to tell me you have never made a smart *** post on your whole time on h-t? yeah dude whatever. i said it with humor. sorry your *** is getting old, but dont blame me. also, its called tough love and everyone does it on ht and by joking about it he will never get the 2 mixed up. way to kill humor </TD></TR></TABLE>


HAHA! I love your sarcasm. gave me a good laugh
Reply
Old May 13, 2006 | 10:27 PM
  #23  
TheLastSpartan's Avatar
Junior Member
 
Joined: Jun 2004
Posts: 396
Likes: 1
From: Chattanooga, TN, USA
Default Re: what is the difference between v-tech and i v-tech (JDM B16A)

stfu with all this e-drama. just answer the OP's question and don' leave any useless posts that help it in no way...
Reply
Old May 14, 2006 | 06:19 AM
  #24  
superiortradingint's Avatar
 
Joined: May 2006
Posts: 16
Likes: 0
From: abilene, tx
Default

i cant believe there was only one phone joke in there
Reply
Old May 14, 2006 | 08:46 AM
  #25  
PhatBoy5015's Avatar
 
Joined: Jun 2004
Posts: 827
Likes: 0
Default Re: what is the difference between v-tech and i v-tech (civic_fan)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civic_fan &raquo;</TD></TR><TR><TD CLASS="quote">sorry....I made a mistake in how i wrote my original post up, however, I was merely attempting to point out the main differences between the two (ie. that VTEC deals with the exhaust cam and i-VTEC deals with both cams). To go into great detail on how each type works as well as going into technical explanations will be fruitless as the original postermost likely does not know how either work. Nonetheless, I'm not about to get into a knowledge pissing match with you. I concede....you are smarter than I.

Reference:

go to this link for info on the different types

i-VTEC

i-VTEC introduced continuously variable camshaft phasing on the intake cam of DOHC VTEC engines. Valve lift and duration are still limited to distinct low and high rpm profiles, but the intake camshaft is now capable of advancing between 25 and 50 degrees (depending upon engine configuration) during operation. Phase changes are implemented by a computer controlled, oil driven adjustable cam gear. Phasing is determined by a combination of engine load and rpm, ranging from fully retarded at idle to maximum advance at full throttle and low rpms. The effect is further optimization of torque output, especially at low and midrange RPMs.


Edited for spelling


Modified by civic_fan at 4:10 PM 5/13/2006</TD></TR></TABLE>
VTEC 2- only on intake cam
VTEC 1- both cams
Reply



All times are GMT -8. The time now is 07:17 PM.