Would someone mind expaining what and how the VTEC system works. Im going to buy a 04. Just would like to know what im dealing with..........thanks

 

Basically, the camshaft profiles change at 6000 rpm for increased hp. Kinda like a two stroke engine when it hits powerband.

 

How basic do you want it?

The engine has two personalities.

1. If you drive it easy (less than 6200 rpm) you get better fuel economy but less GO.
2. If you drive it hard (over 6200 rpm) you get a significant power boost but sacrifice fuel economy.

We can get very detailed if you'd like, talk cam shafts and all, but that's the basics.

Drive it hard........the extra go power is worth the minor fuel economy loss.

Hockey

 

Actually I was wondering if it was like variable valve timing. I would think something extra has to kick in for all that power. I have driven one and the power that comes on is amazing from a 2.0 liter 4 cylinder engine. I am aware that Honda has made racing engines ( Formula 1) ect.... i guess they have passed that on he consumer

 

Honda pioneered Variable Valve timing.

Variable valve Timing and lift, Electronic Control. Yes it is variable.

 

Thanks for the input guys

 

A useful read on the subject can be found at:

http://auto.howstuffworks.com/camshaft3.htm

 

Well, actually the "VTEC" technology was first pioneered by BMW with their Double Vanos System. Honda took it did a marvelous refinement and turned it into VTEC!!!!

 

Why do I not believe you...I'll wait for proof.

 

http://www.bmwworld.com/technology/vanos.htm

?VANOS was first introduced in 1992 on the BMW M50 engine used in the 5 Series.?

...AND...

http://auto.howstuffworks.com/framed.../vtec_faq.html

Q: "What's so special about Honda? My favorite car company 'X' also uses variable valve timing!"

A: There are MANY car manufacturers that have realized the benefits of variable valve timing and have started using them on their cars (including the latest Porsche 911 Turbo). As far as I know, Honda was the first company to successfully do so in a production vehicle (the 1991 Acura NSX).