Hi all,
Just bought a 05 Honda Civic LX and made a mistake of not getting EX which comes with a Vtec enigine. Anyways, is it possible to add vtec to a LX? Modifying the ECU maybe, will it also need a diff cam? Any info would help. Thank you very much!

Amit

 

Do some research...the Lx isn't any slower than the Ex.

You have to do a complete headswap to get vtec on your car. Obviously you haven't really looked into this per your vtec suggestions or have any idea how vtec works/what it does.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CD7power &raquo;</TD></TR><TR><TD CLASS="quote">you might wanna try posting this in the civic forum buddy</TD></TR></TABLE>
umm this is the civic forum rsx dc5 / civic 2001+

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by NiPBoi &raquo;</TD></TR><TR><TD CLASS="quote">
umm this is the civic forum rsx dc5 / civic 2001+</TD></TR></TABLE>I think the OP posted it somewhere else, and they moved it. lol.

And to the OP, the EX is fake vtec also. It's the economy one not the performance one. Just relax and enjoy your car.

 

you're serious aren't you?

 

yes I am serious.

The vtec on the civc ex is the same as the base vtec on rsx's. Kicks in at 2200, and it's used for conserving gas.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Blaziniflo &raquo;</TD></TR><TR><TD CLASS="quote">yes I am serious.

The vtec on the civc ex is the same as the base vtec on rsx's. Kicks in at 2200, and it's used for conserving gas.</TD></TR></TABLE>


this is a must be quote on my sing

 

you can swap a VTEC D17 head.

 

lol I'll sell you my engine EX with aem pullys and intake, dc header....

I made the mistake of not buying DOHC

 

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


this is a must be quote on my sing </TD></TR></TABLE>
LOL!

 

i heard the Scions come in heLL4 Str0Ng V-T3C engines?

 

I keep hearing economy vs performance vtec wtf is that all about . theres no diff , vtec is vtec period. The more cams and ci the car has the more power you get outa havin vtec . its that simple really. its not electronic its mechanical for those who dont know. Cams have an extra lobe per cylinder called vtec lobe and oil pressure at certain loads and rpm switches rocker arms to vtec lobes. makin engine timing and lift more efficient for high rpm.

 

don't ever blaspheme a K20 by saying it's like a D17. :D

 

Thank you for your input guys!!! God bless you!!!

 

I say its not worth it either. If you got the money i say do a k20 swap into your car or turbocharge the d-series. Like everyone says its not going to do much and its a waste of money. If i were you i would prolly use nitrous but only run a small amount like say 30? to give you that extra kick in power when you need it. good luck.

 

IF you have the money, you can do anything, like the vtec head swap. But with money, why not k20a it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by EGSR &raquo;</TD></TR><TR><TD CLASS="quote">this is a must be quote on my sing </TD></TR></TABLE>

he's actually right. the valve-timeing starts at 2200/2300ish on the base rsx for saving on fuel (same with the si cause they have almost the same engine). so i don't know what you are trying to prove by putting that in your sig.

edit: oh and for the guy who knows everything about vtec over there...vtec is engaged electronically

 

You need a headswap. VTEC is mechanical, not something you can just use an ECU to get.

The headswap is easy as hell though.

 

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


this is a must be quote on my sing </TD></TR></TABLE>google it.....you just owned yourself.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RSXisS &raquo;</TD></TR><TR><TD CLASS="quote">google it.....you just owned yourself.</TD></TR></TABLE>

agreed. the vtec on k20a3's are very similar to the ex civic

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aznboysrfr &raquo;</TD></TR><TR><TD CLASS="quote">agreed. the vtec on k20a3's are very similar to the ex civic</TD></TR></TABLE>

It's not similar, it's a completely different system. The only similarity is that both have something that happens at 2200rpm. That's about where it ends!

 

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

It's not similar, it's a completely different system. The only similarity is that both have something that happens at 2200rpm. That's about where it ends!</TD></TR></TABLE>

on the cam for the intake valves, they both have two lobes ... one for vtec. on the cam for the exhaust valves, neither have any sort of vtec lobe. k20a3 & d17 vtecs are geared towards fuel economy and low-end torque.

I'd say the only differences are is that the k20a3 is dohc and that it has vtc.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by aznboysrfr &raquo;</TD></TR><TR><TD CLASS="quote">on the cam for the intake valves, they both have two lobes ... one for vtec. on the cam for the exhaust valves, neither have any sort of vtec lobe. k20a3 & d17 vtecs are geared towards fuel economy and low-end torque.

I'd say the only differences are is that the k20a3 is dohc and that it has vtc.</TD></TR></TABLE>

The thing about the exhaust cam doesn't really have any bearing because the D17 is a singlecam which you obviously know. The only similarity between the D17 and K20A3 is they have a pretty mild VTEC for midrange and fuel economy, as you said.

I'm just sayin the systems aren't related, at all. The fact that the K is DOHC, has VTC, etc. makes them pretty much completely different.

Didn't wanna get anyone confused and start seeing posts saying "Can I add K20A3 VTEC to my D17?"

 

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

The thing about the exhaust cam doesn't really have any bearing because the D17 is a singlecam which you obviously know. The only similarity between the D17 and K20A3 is they have a pretty mild VTEC for midrange and fuel economy, as you said. </TD></TR></TABLE>

even though it's a sohc, it still has exhaust cam lobes though ...

anyway ... I think it's easily agreeable that k20a3 vtec =

here is the best way to add vtec to your 05 LX:

 

I think I'm gonna leave it the way it is. I don't wanna mess up the warranty. It's good for me and my wife, we don't race anyways, plus I'm in the process of building an LS/VTEC so we'll use that for power. Thank you very much guys for your input!!!