Ive seen a bunch of posts about peoples VTECH not engaging....does the engine sound any diffrent when VTECH engages?? Sorry guys im a total NOOB to these OHC engines and VVT in general.....last car '66 Mustang....so if anyone wants to discuss push rods...well diffrent forum huh?

 

its VTEC not VTECH..no "H"...

 

with k-series motors (k20, k24, etc) the i-vtec engagement is harder to discern. reason being, the engagement is smooth and gradual.

on the other hand, vtec (without the i) is fairly easily discernable. the vtec engagement is sudden so the pitch in sound changes immediately.

 

I wouldnt even say that. On my gsr when it was stock and modified I couldnt hear much at ~ 4400RPM. What was easy to hear was the secondaries at ~5700 RPM

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by BlackSage &raquo;</TD></TR><TR><TD CLASS="quote">I wouldnt even say that. On my gsr when it was stock and modified I couldnt hear much at ~ 4400RPM. What was easy to hear was the secondaries at ~5700 RPM</TD></TR></TABLE>
the beauty that is vtec is distinctly recognized as sounding as if you were downshifting while in gear. it is a much louder shift in exhaust sound when it engages. get some better breathers intake/headers/exhaust and youll really hear it scream. and yes it kicks in in mid band.

 

is all vtec about the same? meaning, would the vtec on my sohc d17a2 be differenet from say a b18? I wont even compare it to the k-series since they use i-vtec

 

No, a SOHC vtec and DOHC vtec arent in the same league. While a SOHC vtec has marginal gains, DOHC Vtec gains are a lot stronger and a lot more noticeable. SOHC vtec is for people who like gas milage.

 

i used to have a 99 Si and when the VTEC kicked in everyone knew it, it screamed...I was thinking about getting a 02-05 SI or 02-04 RSX but honestly I think I'm going to see if I can find an unmodified 99-00 SI/GSR at a reasonable price...K series are awesome but with the B series you get the Power and the Sound

 

k series ivtec needs a lito push from an intake, then it'll scream

 

i think i remember toda had some kind of ecu programming... thing that disabled the i-vtec and enabled vtec.

kick my *** if i'm wrong.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by happy_man21 &raquo;</TD></TR><TR><TD CLASS="quote">Ive seen a bunch of posts about peoples VTECH not engaging....does the engine sound any diffrent when VTECH engages?? Sorry guys im a total NOOB to these OHC engines and VVT in general.....last car '66 Mustang....so if anyone wants to discuss push rods...well diffrent forum huh? </TD></TR></TABLE>

press talk...and you should hear a dial tone.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by qualitybelow &raquo;</TD></TR><TR><TD CLASS="quote">i used to have a 99 Si and when the VTEC kicked in everyone knew it, it screamed...I was thinking about getting a 02-05 SI or 02-04 RSX but honestly I think I'm going to see if I can find an unmodified 99-00 SI/GSR at a reasonable price...K series are awesome but with the B series you get the Power and the Sound</TD></TR></TABLE>

hell yea Quality Below...definitely B series...them bitches scream haha..

 

If it's the "traditional" high-cam VTEC, you'll hear it -- it's like, "nnnnnnnn-aaaaaaa" when you run it up. The faster K-series motors do it, too.

 

How would the vtec on an sohc d17a2 sound?

 

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

press talk...and you should hear a dial tone.

</TD></TR></TABLE>

werd son!

6000-6300 for me!!! ap1

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wako182774 &raquo;</TD></TR><TR><TD CLASS="quote">How would the vtec on an sohc d17a2 sound?</TD></TR></TABLE>

No discernable change in pitch at switchover - modified or otherwise.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by iownzadc2 &raquo;</TD></TR><TR><TD CLASS="quote">its VTEC not VTECH..no "H"...</TD></TR></TABLE>

Variable Valve timing and Electronis control Lift - VTEC

on the Type S it is not really audible but you should feel it Engage at around 6000rpm. Not to sure about the base model or SI.

 

base model and SI engages vtec at around 2300 or something for fuel economy. You can deffinitely hear it in a type s with an intake.

 

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

No discernable change in pitch at switchover - modified or otherwise.</TD></TR></TABLE>

So in other words, the sohc vtec sucks? how would the vtec compare on a d17a2 to the d17a1 without the vtec?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by happy_man21 &raquo;</TD></TR><TR><TD CLASS="quote">Ive seen a bunch of posts about peoples VTECH not engaging....does the engine sound any diffrent when VTECH engages?? Sorry guys im a total NOOB to these OHC engines and VVT in general.....last car '66 Mustang....so if anyone wants to discuss push rods...well diffrent forum huh? </TD></TR></TABLE> common fellow honda guys, dont waste your time on this queer, its obviously some ignorant domestic guy that made a honda-tech account to "poke fun" at our cars, yall are giving him what he wants, us to explain ourselves for no apparent reason, **** this queer and someone lock this post

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SpoonyDC5 &raquo;</TD></TR><TR><TD CLASS="quote"> common fellow honda guys, dont waste your time on this queer, its obviously some ignorant domestic guy that made a honda-tech account to "poke fun" at our cars, yall are giving him what he wants, us to explain ourselves for no apparent reason, **** this queer and someone lock this post </TD></TR></TABLE>


I don't think that was his intention at all. It isn't a bad question at all IMO. I'd give him the benefit of the doubt, but especially with your comments you'll look like a jerk if you're wrong.

 

type s u can definitly hear vtec on it stock.

u gotta be deaf not to hear it

 

This thread came out well (fortunately!) --
https://honda-tech.com/zerothread?id=1365852

 

cause its music to your ears

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wako182774 &raquo;</TD></TR><TR><TD CLASS="quote">So in other words, the sohc vtec sucks? how would the vtec compare on a d17a2 to the d17a1 without the vtec?</TD></TR></TABLE>

Well, that really depends...if you want a neck snapping, 9000 rpm screamer then yes, the SOHC vtec engines suck - go buy an S2000. However, if you want something that makes reasonable power, gets good mileage, and has a remarkably tractable powerband given it's size (in other words, what it was DESIGNED to do), then they don't suck at all.

Comparing A1 and A2 - nearly the same - much closer than say the K20 A2 and A3 in terms of charachter. Anyways, the A1s are going into lighter cars (no sunroofs, etc.) so head to head they would probably be nearly identical.