wtf...............what is vtech.......

[joemeadejr]

yeah i know this is a very stupid question but ummmmmmm what is vtech what does it do and why is it so feared

[CivicSpoon]

http://auto.howstuffworks.com/question229.htm
There are more links at the bottom of that page (the first link on that page is a more detailed explanation).

But basically the vtec camshafts have 2 different profiles on them. 1 for low rpm used for better fuel economy over having an all out aggressive cam. And the other is an aggressive profile for more power. At a certain rpm (somewhere around 5000 rpm, give of take a few hundred rpms), the engine switches over to the aggressive cam profile. It's a boost in power for higher rpms. The newer VTEC systems (known as i-VTEC, or intelligent vtec) is far more complex; and involves both the came profiles and switching from 2 valves per cylinder to using 4 valves. And there's nothing to fear about it. Since Honda introduced it, almost every other car manufacturer has come out with their own ways of doing the same thing.

[AudioGuy93DelSol]

I have trouble resisting...



Oh and I think there's deffinitaly a reason to fear it. That changeover sound will send children running.

[joemeadejr]

Originally Posted by CivicSpoon

http://auto.howstuffworks.com/question229.htm
There are more links at the bottom of that page (the first link on that page is a more detailed explanation).

But basically the vtec camshafts have 2 different profiles on them. 1 for low rpm used for better fuel economy over having an all out aggressive cam. And the other is an aggressive profile for more power. At a certain rpm (somewhere around 5000 rpm, give of take a few hundred rpms), the engine switches over to the aggressive cam profile. It's a boost in power for higher rpms. The newer VTEC systems (known as i-VTEC, or intelligent vtec) is far more complex; and involves both the came profiles and switching from 2 valves per cylinder to using 4 valves. And there's nothing to fear about it. Since Honda introduced it, almost every other car manufacturer has come out with their own ways of doing the same thing.

thanks alot man i apreciate it

[hondacivic99sivtec]

ah the sound of vtec on an open header. it's just wonderful, it'll make ur toes curl.

[joemeadejr]

alright new question which cars have vtec so i know for future refrence

[CivicSpoon]

There's really too many to list. Pretty much from 1992 to now, the higher end trims of almost every Honda and Acura model have vtec engines. Si and EX Civics, GS-R and Type R Integras, Del Sol Si and VTEC, Prelude Si and VTEC, Accord EX, NSX, this and last generation CRV's, S2000's

[BrodyP]

Originally Posted by CivicSpoon

There's really too many to list. Pretty much from 1992 to now, the higher end trims of almost every Honda and Acura model have vtec engines. Si and EX Civics, GS-R and Type R Integras, Del Sol Si and VTEC, Prelude Si and VTEC, Accord EX, NSX, this and last generation CRV's, S2000's

RSX

Originally Posted by joemeadejr

alright new question which cars have vtec so i know for future refrence

Are you planning on purchasing a Honda or racing one lol

[hondacivic99sivtec]

tsx

[Gohan Ryu]

Newer models have i-VTEC. Basically it's the same as a VTEC engine AND it has a computer controlled adjustable cam gear that adjusts itself as you are driving.

[somick]

http://www.automotiveforums.com/vbul...d.php?t=633528

[joemeadejr]

Originally Posted by BrodyP

RSX



Are you planning on purchasing a Honda or racing one lol

lol dont know about either but ive seen some really fast honda's and i was wondering what this vtec thing was that they were all bragging about but theres got to be a way to switch to the aggresive cam at lower rpms right

[MishaA]

Hmmm, then you did not understand. You don't want to switch to aggressive cam at lower rpms, because less aggressive works better on lower rpms... You will not gain, you will loose...

[joemeadejr]

ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh h now that makes alot more sense lol