what is the exact RPM that vtec kicks in on my 2000 civic EX?

 

I've never owned a D16Y8, but most people claim ~5200 RPM, which is different from the D16Z6's 4800 RPM point.

 

it changes depending on manifold pressure ect. the minimum is 4800rpm max i believe is 5200

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Soccerking3000 &raquo;</TD></TR><TR><TD CLASS="quote">it changes depending on manifold pressure ect. the minimum is 4800rpm max i believe is 5200 </TD></TR></TABLE>

 

^ agree

Also, please note that it's shouldn't be a "kick". It should be a smooth transition, only minutely audible if at all on a SOHC.

 

Watch your tach and listen I can easily hear it on my z6

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by variable &raquo;</TD></TR><TR><TD CLASS="quote">Watch your tach and listen I can easily hear it on my z6 </TD></TR></TABLE>

And if you're too numb in the head to figure it out, take off your intake tubing and your axleback exhaust section and then the entire town will be able to hear when VTEC engages.

 

On my old eg I used to be able to hear it pretty well but on my girls 00 ex its not too noticable..

 

That's what I was going to say earlier -

My Z6 with panel filter and no resonator = noticable VTEC X-over

Newer Y8's = not so noticeable

You could always wire up an LED to the VTEC signal wire - nice visual indication that it's working.

 

thats what i have

 

4800-5200k

 

Think mine does around 4800

 

does the z6 vtec sound similar too the dohc vtec series when it engages?

 

nowhere near, the z6 is easily audible but much less than a b-series engagement, if you really want to hear it get some itb's and run open header

 

Mine does around 5600

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by civic_speed99 &raquo;</TD></TR><TR><TD CLASS="quote">Mine does around 5600</TD></TR></TABLE>

did you mess with the engagement point? otherwise i say that your stock tach is hella off

 

i heard the cam will make a difference

 

what doyoumean the cam will make a difference? the engagement point wont change if put a new cam in, tuning itmight change the x-over point though

 

provided that the car is up to temp, the oil pressure is good it should kick in at around 4500 + or - a small amount. Honestly the Vtec (on a SOHC) is difficult to distinguish from a car entering its peak rpms and pulling hard. This is due to the fact that all it is doing is effecting your intake valves vs. on a DOHC that changes both the intake and exhaust valves.

 

i own a 97 civic ex, d16y8 and it engages at 5500 rpm on the dot each and every time

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Soccerking3000 &raquo;</TD></TR><TR><TD CLASS="quote">

did you mess with the engagement point? otherwise i say that your stock tach is hella off</TD></TR></TABLE>

It is right around that somewhere when I barely hear it, lol. And no, never messed with it. Actually might be 5400, can't remember if it was before or after 5500, lol. I'll research it tomorrow.