I have a d16z6 and I was wondering how I check if my vtec is working right? Can anybody help me?

 

do you have a tuning device (VAFC, vtec controller)? If so you can set the engagement point at a lower rpm and feel it kick in, but if you are just using a virgin p28 the sohc vtec is just to weak to feel it kick it.

 

what is that version p28? what is that code mean?

 

its a ecu for the d16z6, vtec engagement point on that is like 5800 rpm. dont' tell me you have nothing to set the vtec off

 

damn that rpm is hella high. so it is optimum to get a vtec controller so i can adjust that down right?

 

you can search up post on this board about vtec engagement, they have alot of explanations of vtec and why honda made vtec. its not like nos or anything its just to keep your motor efficient i believe. but just search it up you'll find plenty of information

 

i just have mine set at 5,200 rpm with a VAFC.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by masamine &raquo;</TD></TR><TR><TD CLASS="quote">damn that rpm is hella high. so it is optimum to get a vtec controller so i can adjust that down right?</TD></TR></TABLE>

First of all, 5800 RPM is not the RPM activation RPM for the P28 ECU.


Yes, you can get a VTEC controller to switch the activation point, that is one feature of the VAFC.

Finding the optimal VTEC engagement point is not as easy as guess work, and changing it to what you think it should be. Every car is different and it needs to go on a dyno and have a tuner play with the engagement point.

Research, it sounds like you have a lot to learn.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by masamine &raquo;</TD></TR><TR><TD CLASS="quote">I have a d16z6 and I was wondering how I check if my vtec is working right? Can anybody help me?</TD></TR></TABLE>
Listen for it at full throttle at 4800 RPM (if you are using the proper P28 D16Z6 ECU). It is difficult to hear if you have a stock intake system.

You should be able to tell the difference in power with VTEC vs. without. The car will lag and the torque curve will feel as if it is dropping off significantly at high RPM (5000-7200) if it is not engaging. The torque curve should feel linear up to about 6600 RPM if VTEC is working properly.

 

Wow, is this serious, my Vtec Jerks so hard, and sounds like a Jet. YOU CANT MISS IT, jusst keep leting it rev, sometimes mine kicks at 4800, sometimes at 5200...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Jurassic Four &raquo;</TD></TR><TR><TD CLASS="quote">my Vtec Jerks so hard</TD></TR></TABLE>
Your car is tunred wrong then and you are losing power prior to the engagement point.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">YOU CANT MISS IT</TD></TR></TABLE>
He has a D-series engine, not a B16A. The D-series VTEC engagement isn't nearly as pronounced as with a B16A and is easy to miss - especially if he is using a stock airbox.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Targa250R &raquo;</TD></TR><TR><TD CLASS="quote">
Your car is tunred wrong then and you are losing power prior to the engagement point.


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


Thats a bummer.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hybrid honda &raquo;</TD></TR><TR><TD CLASS="quote">
Research, it sounds like you have a lot to learn.
</TD></TR></TABLE>

i know i just started to learn about cars. do you know any sites that i can look at to learn about my cars or hondas in genral?

 

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


i know i just started to learn about cars. do you knowany sites i can look at to learn about my cars or hondas in genral?</TD></TR></TABLE>

You're looking at it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by masamine &raquo;</TD></TR><TR><TD CLASS="quote">
i know i just started to learn about cars. do you know any sites that i can look at to learn about my cars or hondas in genral?</TD></TR></TABLE>

Go to howstuffworks.com and search for vtec.. Then also search on there for fuel injection.. Youll get the idea..

 

Here..

http://auto.howstuffworks.com/question229.htm

And here

http://auto.howstuffworks.com/fuel-injection.htm