JDM B16A

I think its because of these 2 chips that are installed in my ECU but my fuking Vtec kicks in at 5.9!! WTF!? When does a B16 usually kick vtec!? I mean STOCK everythign! Is there anyway beside a Vtec controller where I can adjust my Vtec to hit at 4.5?!?

pissedEK

stock B-16 is 5700rpm, you can re-chip it..or buy a vafc and you'll tell vtec when to crack

pissedEK

or, have it re-chipped, my girls integra is chipped to crack vtec at 4400

mrbigg9032

There is really no point to move around the v tec engagement point Honda put it at whatever set point for a specific reason...

pissedEK

toda reccomends vtec engagement at 51-5200rpms so thats what i did, and I swear on everything it makes a difference

Kamin

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pissedEK &raquo;</TD></TR><TR><TD CLASS="quote">toda reccomends vtec engagement at 51-5200rpms so thats what i did, and I swear on everything it makes a difference</TD></TR></TABLE>
do you have a dyno to back that up?

no?


look kiddies, changing vtec may be fun and sound different and a cool "magazine mod" but its a waste of time and money UNLESS YOU TUNE IT ON A DYNO.

each car is different and can have a different engagment point and the only wany to know for sure is to do it on a dyno. period.

pissedEK

I totally agree with you on the IMPORTANCE of dyno tuning, I will have dynos, by next week from hookups, I just checked out toda threads on thier site and thats what it called for...and they seem to be right so far, we'll find out next week

Kamin

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pissedEK &raquo;</TD></TR><TR><TD CLASS="quote">I totally agree with you on the IMPORTANCE of dyno tuning, I will have dynos, by next week from hookups, I just checked out toda threads on thier site and thats what it called for...and they seem to be right so far, we'll find out next week</TD></TR></TABLE>

heres the thing

you dont know. nobody knows unless you have proof. its not like honda picked a random number and said "lets put vtec here" they spent a long time developing it and to say that anyone knows better on a modified car is flat out wrong.

you canot say if its better or WORSE than stock without a dyno. PERIOD.

YeeJ6

not once has my vtec "kicked" or "cracked" it has however, engaged.

_Bug_

expletive that I hate how mine engages at 5000. I got an OBD2 P72 ECU, I'm not sure if it;s chipped or not because I bought the car with it. It bugs the **** out of me becuase when I'm on the freeway it seems like I'm always in mAD tYt3 VTAK YO! It's a real killer on my gas too.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mrbigg9032 &raquo;</TD></TR><TR><TD CLASS="quote">There is really no point to move around the v tec engagement point Honda put it at whatever set point for a specific reason...</TD></TR></TABLE>

Yeah I agree. Mine engages at 4900 but its more of a sound. I really don't feel it pull any harder until 6000, so I would much rather it "hit" between 5500-6000.

JDM B16A

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pissedEK &raquo;</TD></TR><TR><TD CLASS="quote">stock B-16 is 5700rpm</TD></TR></TABLE>


Can someone else second that?

Kamin

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM B16A &raquo;</TD></TR><TR><TD CLASS="quote">Can someone else second that?</TD></TR></TABLE>

yes between 5500 and 5700 is normal.

YeeJ6

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM B16A &raquo;</TD></TR><TR><TD CLASS="quote">Can someone else second that?</TD></TR></TABLE> chrome says: (JDM)P30 b16a ecu vtec engagment point...5875rpm.

RTI

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pissedEK &raquo;</TD></TR><TR><TD CLASS="quote">or, have it re-chipped, my girls integra is chipped to crack vtec at 4400</TD></TR></TABLE>

You don't need a chipped ecu for vtec to engage at 4400 in an integra. That is where vtec engages with a stock ecu.

EK k kay

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pissedEK &raquo;</TD></TR><TR><TD CLASS="quote">toda reccomends vtec engagement at 51-5200rpms so thats what i did, and I swear on everything it makes a difference</TD></TR></TABLE>

That's probably if you are using their cams and valvatrain.

flatblack-h22

my vtec engages at....

nowhere because im NonVtec y0!

Banned HT Member

my 95 d16z6 has a broken vtec plug and it feels the same as my 94 d16z6 with vtec
sohc vtec
i need a b

KrIzMoCRX

i personally like vtec to engage at higher rpms, feels better, JDM u should build up your head a little get some nice springs and retainers, i got that and valves with a valve job,...about $650 with machine shop and everything. but with that you can rip the sh*t out of it, take it to like 9,500-10,000 all day and you'll be alright and with your 16 tranny u'll be on vtec everytime u shift even opening up at 6, leave it their bro

crxnj

Mine comes in at 5190rpm using an autometer tach..This is with a pm6 ecu chipped with a stock pr3 program..

crxsi8

^^LS/vtec crx 5100 and my stock Eg2SOL cracks in at 5500 w/ a p30

Relic1

stock B16 ECU engages VTEC at:
JDM
5625 @ WOT
5875 @ part throttle

EDM/USDM
5375 @ WOT
5875 @ part throttle


once chipped all bets are off because it's completely adjustable.
Also note that VTEC should transition seamlessly and shouldn't "hit" as others have said.
Adjusting your VTEC engagement point will do nothing but loose power for you unless you tune the fuel and ignition maps to match the VTEC point. (sort of like the tail wagging to dog doing that though)

bsixteen

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM B16A &raquo;</TD></TR><TR><TD CLASS="quote">


Can someone else second that?</TD></TR></TABLE>

i concur

JDM B16A

So my JDM B16A First gen kicks in at 5.9 with a chipped ECU. Does that sound good? I redline at 8.5. I don't see how only 2.6 rpm of Vtec can do anyone any good. Someone please clear that up for me. THANKS!

Kamin

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDM B16A &raquo;</TD></TR><TR><TD CLASS="quote">So my JDM B16A First gen kicks in at 5.9 with a chipped ECU. Does that sound good? I redline at 8.5. I don't see how only 2.6 rpm of Vtec can do anyone any good. Someone please clear that up for me. THANKS!</TD></TR></TABLE>
no offense man but im not going into camshaft theory and the purpose of vtec for a question like that.

just know honda knows more than you do

jdmjaser

mine kicks in at 5650 or 5700..