LaOstha

Well i just purchased a mint ej1 today and i noticed that the vtec didnt engage or i just cant hear it. Well i never had a sohc vtec only bseries. Is it engaging and im not hearing it cuz b series vtec cracks loucd.

DJ_SaNdOz

what is it w/ people and having to hear the cam change over? if the car is stock, you more than likely won't hear it, with an intake you probably will.

Research how VTEC is supposed to function, and you will realize that optimumly, you would never hear it...

tkosmith

Don't worry, when I first got my EJ1 I was nervous about that too.... I was so used to hearing my buddies B16's and GSR's... Damn it. Then I came to realize, I have a SOHC, that barely puts down 100hp... That's why VTEC doesn't feel special.

JDM-EJ1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tkosmith &raquo;</TD></TR><TR><TD CLASS="quote">Don't worry, when I first got my EJ1 I was nervous about that too.... I was so used to hearing my buddies B16's and GSR's... Damn it. Then I came to realize, I have a SOHC, that barely puts down 100hp... That's why VTEC doesn't feel special.</TD></TR></TABLE>

It's hard to hear, espically on a SOHC. Do a CEL search, if you're getting a CEL, start to worry. If not, you're golden.

mwieczorek43

Its b/c only your intake cam is effected during the changeover.
On the b's it is both intake and exhaust, making the noise you so-desire.

JDM-EJ1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mwieczorek43 &raquo;</TD></TR><TR><TD CLASS="quote">Its b/c only your intake cam is effected during the changeover.
On the b's it is both intake and exhaust, making the noise you so-desire.</TD></TR></TABLE>

And it sounds oh so good..

zman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mwieczorek43 &raquo;</TD></TR><TR><TD CLASS="quote">Its b/c only your intake cam is effected during the changeover.</TD></TR></TABLE>

its a SOHC there is only 1 cam

mwieczorek43

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by zman &raquo;</TD></TR><TR><TD CLASS="quote">its a SOHC there is only 1 cam</TD></TR></TABLE>
Okay, thanks captain obvious. The lobes on the cam effect only the valves on the intake side, not the exhaust side... you get it now. You're probably right, I should've been more clear as-to what I was refering.

Mattmob

I can barely hear it on my d16... although on my h22 that **** screams like a ****.

EKCRX-Ihadastupidusername

He probably means "intake side".

I had a D16Z6, all you really need to hear VTEC in an intake. A B16 ECU, which I used on mine will kick VTEC at 5800, and will make it sound different, and even louder. Actually you will feel it strongly with a B16 ECU, since the VTEC cross is after the low lobes have been waaaay out of steam, then you hit VTEC suddenly closer to power peak.

I was told that it was because the harmonics of the engine changing at a different RPM than normal would make the engine sound different.

So, if you NEED to hear and feel SOHC VTEC, remove intake tube, and use a B16A ECU.

mwieczorek43

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by diegoaccord &raquo;</TD></TR><TR><TD CLASS="quote">He probably means "intake side"...Yes, see above post
Actually you will feel it strongly with a B16 ECU, since the VTEC cross is after the low lobes have been waaaay out of steam, then you hit VTEC suddenly closer to power peak.
So, if you NEED to hear and feel SOHC VTEC, remove intake tube, and use a B16A ECU.</TD></TR></TABLE>
So, Im sorry I'm not trying to be a dick here, but I'm having trouble following your logic.
Essentially what your saying is: You used a b16 ecu to higher the vtec crossover, for the sole-purpose of making the vtec sound louder?! And yet you admit, that it is hurting your mid-range power-output?!! Why?

EKCRX-Ihadastupidusername

I didn't read the post to see the prior clarification...kill me.

I didn't do it to raise VTEC. Hearing it louder, and feeling it was a side-effect. I got the PR3-J01 ECU for THIS:







Hahaaha. Yeah, all that RPM on a SOHC. It saw a maximum of 91-9300, during an intentional stabbing of the throttle at fuel cut.

It's funny, the motor blew the day after I took those pics, then it was Z6 no.2, then 3 weeks after that, the B16.

Of, course these days, I rock a B16A w/LS tranny, a Skunk 2 H22A ECU, and a EG6 SiR II guage cluster, that reads RPM's a thousand too ******* high.

POE

u were reving a stock d16 that high? ^^^

WOW not good, your just making noise not power

built562

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by diegoaccord &raquo;</TD></TR><TR><TD CLASS="quote">I didn't read the post to see the prior clarification...kill me.

I didn't do it to raise VTEC. Hearing it louder, and feeling it was a side-effect. I got the PR3-J01 ECU for THIS:



Hahaaha. Yeah, all that RPM on a SOHC. It saw a maximum of 91-9300, during an intentional stabbing of the throttle at fuel cut.

It's funny, the motor blew the day after I took those pics, then it was Z6 no.2, then 3 weeks after that, the B16.

Of, course these days, I rock a B16A w/LS tranny, a Skunk 2 H22A ECU, and a EG6 SiR II guage cluster, that reads RPM's a thousand too ******* high.</TD></TR></TABLE>

hahahahaha. u sir are a moron, first off for revving your car that high and second thinking ur vtec kicks in at a stand still. the car needs to be moving to have vtec engage

bluemax189

hahahaha look. all that revving and you got nowhere. so what if you can rev to 8000+ when your not moving. you dont make power there on a dseries. pointless.

JDM-EJ1

Wow, you're going to blow your motor in no time at that rate . VTEC will only engauge when the car is moving..

vsmhatched

single cam vetc is a hole different story then DOHC vtec......

EKCRX-Ihadastupidusername

built562 Do you think I don't know the car needs to be moving for VTEC? I took that pic to show maximum RPM on the SOHC motor. Goddamn. It revs that high, regarldess of VTEC or no VTEC. So, care to enlighten me as to when I said VTEC comes in at a standstill?

So, it wasn't smart to rev the D16 that high...but when you can replace blocks for $20, why not?

Again, your point 2 is invalid, maybe you should read. You, sir, are the presumptuous dumbass.

Also, bluemaxx. I know that power falls off right at 7000 on that motor. And believe me, I took that motor to 8700+ while driving, not only standing still. 3rd gear at 8500 on D16Z6 = 115 MPH. Again, it took it that high because I could.

JDM-EJ1 - That motor blew up a day after those pictures. I believe that is stated. Did another Z6 made from my head + a $20 Z6 block, then 3 weeks later, the oil pump went out on it, and almost caused a fire.

This was motor no. 2:


Then I did this 3 weeks later, motor no.3:


It would be noted that the 1st Z6 felt more willing to rev to 8000 + than my B16. The B16 is a auto-spec cams version, but still, it SHOULD be better at 8000+ than the D16 was, yet it doesn't seem that way.

EJ1 coupe

B16A/LS tranny,linkage,shifter(has s bend)
Intake, stock D16Z6 exhaust, no muffler
gumetal delSol wheels 195/60/14's
lowered Tenzo springs
EG6 SiR II guage cluster
Civic Si badge from EH3 hatch-from Honda dealership.

egvtec

my b16 feels like a d series

EKCRX-Ihadastupidusername

Mine does too.

But an LS transmission will do that to you. Gears are about the same as last motor, plus, I lost to B16 hatch BAD. Doesn't help that I have a Skunk 2 H22A ECU either. Also, mine is auto cams which is 150 HP.

But, hey, I raced an identical car to mine, 1994 EX coupe, with a stock I/E Z6, and I killed him by buslengths.

05em2

ionno what you guys are talking about, i feel that little push on my sohc vtec, little as it may be, u know something just kicked in when u hit something above 5k
cant wait till i get my dohc motor if all of you are saying that you cant feel sohc due to dohc

LaOstha

damn i forgot i made this thread.. kinda got a little out of hand but thanx for the people wit some knowledgeable inut. I only been in around cars with dohc b series motors so sohc is a new sound to me and im not gonna swap it out just yet. Gonna go the underdog route

IT'S ME DAVID

iTrader: (1)

my homei had a sohc vtec d15b in his ek but with hondata everything else was stock and it kicked in way harder then my b16 used to.

ef_you_once_more

cool thread. so I was test driving this ej1 the other day, and I wanted to feel the vtec since I never really felt it(well I did but back then I didnt know **** about vtec or cars in general). so anyways im in 2nd or 3rd I forgot and I smashed the pedal to get it up to 6k and the dude(owner) was like "please please!!! dont drive too fast please!" and I looked at the speedometer and it was like 40mph.. lol. but later I mashed it again in 1st or 2nd and I'm sure I got it to 6k but I didnt feel or hear anything so I also was wondering about sohc vtec

james p.

1) after having/hearing a B series it's only logical that a D series (which is +-35hp weaker) will not be that easy to hear/feel.

2) D series doesn't give you that much extra after VTEC, again making it difficult to notice

3) I usually hear/feel VTEC in a Dseries between 4900 ~ 5100rpms because VTEC also works on oil pressure & temp (hence it not working when engine is cold)

people use the bloody search button and google