A few days ago I started a post about swapping a vtec head for a non vtec. Since I have a 98 EX coupe, I got alot of responses saying that I should already have sohc vtec. I checked the block # and it is a d16y8, which essentially should be a vtec right?? I've been arguing with a couple of my idiot freinds about it. They say that if I did have a vtec, I should be able to feel it kick in, which honestly, I don't. I'm just confused as to what I have in my car, and what RPM the vtec kicks in (if it is), and if I should feel it. Besides bolt on mods, I don't have much, but I'd like to start building it a bit......

 

your not going to feel it in a single cam. thats dual cam vtec motors that u "feel it in" sorry buddy

 

VTEC isn't as noticable on SOHC engines because only the intake cam profile changes. On DOHC, both intake and exhaust cams have two sets of lobes.

Edit: Dammit, I thought I was first.

 

Thats kinda what I though since my buddies SI isn't extremely noticeable either.

 

Actually you can feel the difference when vtec kicks in for sohc. I had a mini me head swap (D16Y8) before my B20vtec and I could a a great difference when vtec kicks in. I could feel it pull about 15% more. My only mod was an intake. On the other hand, my friend has a 95' EX with no mods and I can't even tell if vtec kicks or not. If you don't have an intake, get one. If you still can't feel it, check your vtec solenoid and oil level.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by GapxGuy &raquo;</TD></TR><TR><TD CLASS="quote">Actually you can feel the difference when vtec kicks in for sohc. I had a mini me head swap (D16Y8) before my B20vtec and I could a a great difference when vtec kicks in. I could feel it pull about 15% more. My only mod was an intake. On the other hand, my friend has a 95' EX with no mods and I can't even tell if vtec kicks or not. If you don't have an intake, get one. If you still can't feel it, check your vtec solenoid and oil level.</TD></TR></TABLE>

Maybe you just felt it kick in because you had the non VTEC motor at first...who knows.

 

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

Maybe you just felt it kick in because you had the non VTEC motor at first...who knows.</TD></TR></TABLE>

No, trust me I actually pulled. I was using an ITR ecu though, who knows.

 

if your friends are still being gay, get some ***** and pop off your valve cover and check out your internals! Whoop! WHOOP!

 

i have a y8 motor also..slap on an intake or just go straight throttle body..and u should hear a changeover at 5.5

 

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

No, trust me I actually pulled. I was using an ITR ecu though, who knows.</TD></TR></TABLE>

so you used a itr ecu on a sohc motor?
how would that work? the maping would be way different because of one cam.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SleepyDX &raquo;</TD></TR><TR><TD CLASS="quote">if your friends are still being gay, get some ***** and pop off your valve cover and check out your internals! Whoop! WHOOP!</TD></TR></TABLE>

Why? Just pop your hood and point to the VTEC Solenoid.

 

exactly, pop your hood, show him the VTEC solenoid and then tell him that ALL EX's are VTEC.

 

all d16y8 has vtec, hence the y8. i just recently purchased a stock 00 ex coupe and i cant feel or hear vtec. maybe thats because i had a b16 in my eg before the coupe . try putting on a i,e,h. you should hear a slight difference when vtec kicks in

 

i can feel my sohc's vtec...not much compared to a b-series but i do feel it..maybe its because all the honda's ive had were always non-vtec upto now...can't you hear a change in your engines pitch when you hit vtec????

 

Ground a 12v lamp off the wire going to the solenoid. It'll come on when your vtec kicks in. Apologize to your friends if they can't feel it kick in, but at least now they can see it kick in.

 

Get a CAI for your car, i started to be able to feel / hear vtec kick in once i did that. It MIGHT also be because this is my FIRST vtec car. OHHHH YEAH, u shud b feelin it sometime before 5000rpm !

 

yea i did a mini me swap, i definitely feel it kick in cause my car takes off when it kicks in compared to my dx, much more boost and i can hear it whistle

 

damn your friends are stupid

 

If you want to know when VTEC kicks in make a light :-P lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by D16Z6racing &raquo;</TD></TR><TR><TD CLASS="quote">

Why? Just pop your hood and point to the VTEC Solenoid.</TD></TR></TABLE>

oh yah...good call.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by white99gsr &raquo;</TD></TR><TR><TD CLASS="quote">exactly, pop your hood, show him the VTEC solenoid and then tell him that ALL EX's are VTEC.</TD></TR></TABLE>

hahaha i forgot all about that . . that shud make them feel REAL stupid !

 

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

so you used a itr ecu on a sohc motor?
how would that work? the maping would be way different because of one cam.</TD></TR></TABLE>

Yes you can. The OBDII plugs match up. The air/fuel mapping is different but it still works. My sohc was bogging and you can totally smell the gas fumes b/c the itr is giving the motor more fuel than it should.

 

best way to check if the motor is vtec or not is to look for the vtec solenoid. if it has one, you have vtec. if it don't have one then you don't have vtec. you can hear the vtec crossover a lot better if you run open headers, but not so sure about an SOCH though.

 

so......dumb question, but I don't know where the vtec solenoid would be

 

On the back part ur engine by ur valve cover on the left... right below where the breather line for the intake goes.... Ill try and get pics if i have

Edit here goes one u could barely see it but u get the idea... (i need a diggy camera)...




Modified by PRcivicHB at 6:40 PM 4/23/2003