Hi, I wonder if any of you guys have opinions about the feeling of the Vtec in a D Series engine (Stock internals). Do you realy feel the vtec like the B-Serie)

 

nope. you be lucky if you can hear it

 

VTEC isnt like a turbo, it only makes your engine's power band longer. No you won't notice or feel it.

 

YOU won't feel it, but if you have an intake or an exhaust you will definately hear it

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by pettysrep &raquo;</TD></TR><TR><TD CLASS="quote">YOU won't feel it, but if you have an intake or an exhaust you will definately hear it </TD></TR></TABLE>

you cant hear VTEC with an exhaust on a d series. SOHC VTEC only works on the intake valves.

 

^^^^^^ha...false...

 

What causes it to make so much "noise" in the dohc motors?

 

sohc vtec = more aggressive cam lobe on intake valves
dohc vtec = more aggressive cam lobe on intake and exhaust valves

thats why its louder and feels stronger on a b series compared to a d series.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by del sol1658 &raquo;</TD></TR><TR><TD CLASS="quote">What causes it to make so much "noise" in the dohc motors?</TD></TR></TABLE>

In DOHC vtec motors, there are secondary lobes on both the intake and exhaust cams. This allows the extra air that is sucked in during the intake stroke to be explelled on the exhaust stroke.

It's basically just more air. Oh and the cams in DOHC motors are much more agressive than SOHC. SOHC = econo engine.

 

Not to thread jack, but what happens when you add a more agaggressive to a sohc?

 

nothing special, just more power.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by knockout &raquo;</TD></TR><TR><TD CLASS="quote">nothing special, just more power.</TD></TR></TABLE>

not really in a d series

 

it can be heard in on a d-series with an intake but most exhaust systems just drown it out.

its very hard to feel the vtec but the only time ive noticed it "feel" any different is if you're in first gear and take off normally and never really punch it but more of a controlled acceleration up through the rpm band. It is extremely weak though. I cant feel it in anyother gear like that. But who the expletive really does that.

I've heard with an aftermarket cam that you will feel the vtec point but more over stock. but im still on stock internals.

 

You can hear it very very well with no muffler. Yes, I speak from experience...

 

lol @ this thread..

 

man just get a DOHC!!!!!

 

lol this thread is funny

you want vtec to "scream" in a sohc BUILD THAT **** or...

just get a dohc and keep it stock you'll still hear the vtec

 

i have a b16a3 with ctr camshafts, stock exhaust, stock intake, you can reeealy hear the vtec open up, then i put a short ram intake on it, and now ican hear it crazy good.... i have a freeflow exhaust system in my garage waiting to go on it next: should be interesting to hear.

oh and ive never ever been able to feel a short ram before, but it really gave some torque or power or something, maybe because the engine wasnt getting the full potential of air to really feel the ctr camshafts or something, im hoping the exhaust bumps the power too.