hi all, sorry to make 2 new posts but its different issues so i didn't want to scramble everything together. i purchased my 04 civic Si recently and i never really tested the vtech until yesterday.

I noticed that the vtech NEVER kicked in!! i went from 1-8 rpm and i never heard the roar of the engine get significantly louder or the pull of the car get stronger...when i drove my old 94 civic with vtech once you hit 4-5 rpm the engine would get really loud all of a sudden and you could feel the car start to pull stronger from the vtech kicking in...

is the vtech on the ep3's just weaker and less noticeable? or do i have a legitimate issue?

thanks fellow honda enthusiasts

 

You will not hear your vtec, cause it only has the vtec profile on one side of the cams not both. like normal vtec motors.

 

hmm gotcha thanks for the help, i guess i was thinking too much of the vtech, like its a turbocharger or something...i was actually getting worried that the engine wasnt the original one....

thanks!

 

Though as a note, as an 02+ si owner myself. Does anyone know what RPM range the i-vtec engages at? Im interested in what would be the optimal shift ranges for each gear to best take advantage of the i-vtec design.

 

our Ep's...vtech engages at 2200 rpm...which you won't hear for feel

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 04Si &raquo;</TD></TR><TR><TD CLASS="quote">hmm gotcha thanks for the help, i guess i was thinking too much of the vtech, like its a turbocharger or something...i was actually getting worried that the engine wasnt the original one....
</TD></TR></TABLE>

:/ its not..

basically, just think of the k20a3 as not having the 'vtec' that you're used to at all.

 

so basically the i-vtec in our EP3's is there to give the car power period, rather than a fun suprise in the higher RPM ranges?

lame... this pushes me towards engine swap sooner than I had anticipated

 

i mean as a DD it runs great and has all the power you'll need, i was just concerned when i could never feel the vtech, but thankfully you guys have calmed my nerves...i so used to hearing the roar and feeling the pull of the older vtech cars

 

OK, according to MY mechanic...

it actually isn't a TRUE VTECH- there is No EXTRA LOBE on the cam like a true v-tech....

The i-vtech means its intake- it has 2 Valves for intake... it only uses one until you need power (Which for most of us, is ALL THE TIME!)

so it goes from 1 valve working, to 2 vavles by Computer control...
NOT "2 CAM" CONTROLLED like others.
Yes, disheartening... but oh well, k20a3- Solid Reliable...

(Oh, You wanted FAST? ...cough up another $4K and throw a turbo on it! = 250 HP!)

 

Sometimes lots of peep complain and say that the K20A3 does not have Vtec but actually they are wrong...We do have Vtec...Our Vtec is actually a economy Vtec...so, instead of it being I-Vtec like the other Vtec in K20A2, K20A, K20Z, etc...it should have been listed as I-Vtec-E...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by T_Virus &raquo;</TD></TR><TR><TD CLASS="quote">Sometimes lots of peep complain and say that the K20A3 does not have Vtec but actually they are wrong...We do have Vtec...Our Vtec is actually a economy Vtec...so, instead of it being I-Vtec like the other Vtec in K20A2, K20A, K20Z, etc...it should have been listed as I-Vtec-E...</TD></TR></TABLE>

well duh, its on the side of the car/engine bay.

but when people say 'vtec' you think of the distinct crossover noise/umphh in the powerband. not the ivtec-e.

 

 

umm guys can we please spell it right.. it is VTEC not Vtech... we do not have phones in our heads.. we have honda parts. please spell it right .. please.

 

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

lol. i was waiting for someone to throw that up.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hawaiiancb74 &raquo;</TD></TR><TR><TD CLASS="quote">umm guys can we please spell it right.. it is VTEC not Vtech... we do not have phones in our heads.. we have honda parts. please spell it right .. please. </TD></TR></TABLE>LMFAO

on a serious note.. there is more then 1 vtec as you guys are thinking there is.

 

risktypeS saves the day again!!!...lol

 

I thought it was i-vtakk?

 

Here:

http://hondata.com/techk20general.html

I wouldn't feel too bad if I were you. The motor's still got potential as it sits stock.

BTW -- to the threadstarter -- how did you take it to 8K rpm?

 

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

BTW -- to the threadstarter -- how did you take it to 8K rpm?</TD></TR></TABLE>
8k wtf!!!

 

lol sorry, perhaps i over stated, i took it to right b4 the redline

that link did make me feel better about the vtec, thanks all for the advice

 

LOL... my bad! i have 4 or 5 VTECH Toys for the kids... Great Products!
i didn't feel the need to dig threw the toybox to find them, but trust me, they're cool!

...but my phone is the 5.8GHZ VTECH! you have the wrong Pic!






Modified by 02SiEp3 at 1:10 PM 5/30/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 04Si &raquo;</TD></TR><TR><TD CLASS="quote">hi all, sorry to make 2 new posts but its different issues so i didn't want to scramble everything together. i purchased my 04 civic Si recently and i never really tested the vtech until yesterday.

I noticed that the vtech NEVER kicked in!! i went from 1-8 rpm and i never heard the roar of the engine get significantly louder or the pull of the car get stronger...when i drove my old 94 civic with vtech once you hit 4-5 rpm the engine would get really loud all of a sudden and you could feel the car start to pull stronger from the vtech kicking in...

is the vtech on the ep3's just weaker and less noticeable? or do i have a legitimate issue?

thanks fellow honda enthusiasts </TD></TR></TABLE>

 

Vrooooooooom
speaking of phones and cars.. had to post this one.
wait till Vtech kicks in

 

lolol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by ley &raquo;</TD></TR><TR><TD CLASS="quote">I thought it was i-vtakk? </TD></TR></TABLE>

You were close, but appearantly this cat has a form of <U>VTEC</U> we have NEVER heard of. So I guess no one can help you with your VTECH issues but if you have questions about your VTEC or I-VTEC, I am sure we would be more than happy to help you out.


<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by risktypeS &raquo;</TD></TR><TR><TD CLASS="quote"> Vrooooooooom
speaking of phones and cars.. had to post this one.
wait till Vtech kicks in</TD></TR></TABLE>

And BTW, this is just tooooooooooo god damn funny. Oh father protect us from all that is unholy and even the VTECH equipped phone cars