when does the vtec usually kick in i get different rpms. some people say 3500 or so and some say 5500

 

what car? please be specific?

 

obviously if he cant tell then it is a SOHC....

but who cares if you cant hear it or feel it then whats the difference?

 

VTEC is not controlled by RPM's alone. It's dependent on load and throttle % as well. ALL conditions must be met. If you're at part throttle and medium load, eventhough you're past the VTEC crossover point, you'll actually make more power by not going into VTEC. And if your foot isn't pushing the pedal hard you obviously don't want VTEC anyway.

 

What motor is it? Not all VTAK's "kick" at the same specs. Gotta be more specific.

 

sorry its the sohc y8

 

I have the same motor mine comes in at about 5k but it doesnt give much of a "kick"

 

I'd like to say it's not 'til around 6k. It's way up there.

Lowering the crossover point doesn't really do much of anything. The higher cam profile is optimized for higher rpms anyway.

I know on my B16A I lowered it from 5800 to 5300, but that was while dyno-tuning the cam gears and the fuel curves w/ the V-AFC. Smoothed out the"dip".

 

its not a turbo or nitrous. its not gonna freaking kick. when tuned properly vtec will be a smooth transisition not like you went from half to full throttle at 5krpms. common now

 

i would say it "kicks" between 5.5k and 6k depending on load.

mine used to "kick" on my b16 at 5.5k at full throttle, but not its tuned to kick at 6k and red lines at around 10k

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMishEK &raquo;</TD></TR><TR><TD CLASS="quote">its not a turbo or nitrous. its not gonna freaking kick. when tuned properly vtec will be a smooth transisition not like you went from half to full throttle at 5krpms. common now</TD></TR></TABLE>

Exactly. People confuse "more noise" with "NAWZZZSZZZZ"