I've reed something about it, but I have no clue what it does or how to do it. And what does it do? Is it some special power or something? Sorry about the stupidity.

Thanks.

 

VTEC is an engine control system that Honda uses. It stands for something along the lines of Valve Timing with Electronic Control. Basically two settings. There's one lower power setting I suppose you could call it, under 6000 rpms in the S2000. Then after 6000 rpm, the valves change their positioning, and the engine takes on its second more powerful mode. In the s2000 there is a considerable difference between the two modes. Anyone else care to try and explain this?

 

Variable valve Timing and lift Electronic Control = VTEC

 

Just FYI - the VTEC engagement (6K RPM-ish) isn't especially pronounced unless you're flooring it.

If you've got over 600 miles on the engine (broken in), find a nice long straight road or on-ramp and floor it to redline through the first 2 or 3 gears. You'll know what VTEC is after that!

JonasM

 

Sure, we are talking about variable valve profiles. In the honda it is done with extra cams on the camshaft. The rocker arms switch between the low rpm cams and the above 6000 cams. Here's the theory.
At low rpms the intake suction of air and fuel is lower and in order to make this as efficient as possible to maintain a decent idle, low end torque and fuel economy the valve opening is small. The cam opens the valves for a short duration and low lift. At high rps's "above 6000" inorder to pump up the breathing capability of the motor for a flat torque curve and highest possible hp the high end cams take over providing higher lift and duration to flow more air and fuel. thats it in a nutshell. The beauty of the honda system of doing this is the on/off approach for greater simplicity and reliability especially at the hi-revs of this engine. ok, my fingers are tired!

 

If you want a detailed description of how VTEC works, go to Howstuffworks.com and type "VTEC" in the search bar. There, you can find a detailed description with decent diagrams of VTEC engines.

 

What it does? It gives you a push in the back and a cheesy grin on your face!

It's like a drug (or sex), once you've done it for the first time, you have to keep doing it!

 

Man, I thought it would have been DR. JEKYLL who asked hehe

 

http://www.howstuffworks.com/framed.htm?pa...vtec/index.html

The S2000 utilizes the DOHC version (double overhead cam).

 

I don't VTEC but my S2000 does.

Just step on the gas and watch the revs fly between 6 and 9k.