razorhead89

is the eco-tec gm's version of hondas v-tech....or is it called eco for economy .....whats the difference between the two engines...my friend said that he can feel his v-tech "kick in".....

AZCobalt19

Your friend is an idiot.

Sanat

hahahaha lol.

Brucesblack

yea what he said ^^^ lol ..EcoTec FTW .. ^tec lol

cblt12

i think the 2.4's vvt is the closest thing to v-tak on a cobalt.

th0ughtless

lol, somebody told me that and I had to ask him, was his car running on only half of the valves, then the rest kicked in? LMAO

forced_induction

v-tec is variable valve timing, correct me if im wrong but it changes to a higher cam gear or somthing like that when it crosses over. V-TEC was actually invented by GM but they couldn't get it to work like planned in their V-8's so they sold the patent to Honda and they tweaked it to work with their smaller motors. I have raced a 12 sec civic before and u can hear the v-tec crossover a see the change in power, its not a myth like some people make it out to be; but its normally only noticeable with build honda motors, so all those civics with just intakes and exhaust are not gonna see a big difference when it crosses over if any

The_Blur

Hondas...

06redlineb

http://www.youtube.com/watch?v=AcT_ZyY3F0k

cblt12

"good low end torque"

Black07LS

Honda= no torque but HP at high RPM

None SI civic= E-Z pray

HickOverLOrd

x2. I cracked up

razorhead89

so why do they call ours eco-tec.....economy ****

Halfcent

The name is just a brand name. It is short for "Ecological Technology"

The_Blur

The name isn't important. It's what you do with it.

ssritz

were did you get this info from?

HONDA= History Of No Dramatic Acceleration
V-TEC= Virtualy-Torqueless Economy Car

hawlyns711

iTrader: (2)

it just sifts the cams over slightly to a more aggressive parts of the lobes on the cam

MachiBLue

You should of told your friend that you can feel your Ecotec kick in too. I feel it all the time..it kicks in around 4.5k...and BAM I'm gone..

The_Blur

That's strange. Mine kicks in whenever I hit the throttle.

Red2.4SS/SC

i think he was kiding

MachiBLue

Bingo!! We have a winner.

The_Blur

so was I

rick1217

My Ecotec makes a Loud Whining noise under the hood......It kicks in instantly.... Plus, I dont have to wait til 5-6K too make over 100 hp like hondas do....

ItalianJoe1

iTrader: (10)

It is actually a third set of lobes on the cam, that only engage when needed, at higher rpms, letting the car run a better cam profile for low rpm and high rpm driving. It is a great system, it uses hydraulic pressure to slide pins below the rocker arms, basically collapsing the regular, low rpm one and activating the high rpm one when the ECU commands a changeover, at say 5000 rpms.
I know this is a simple explanation, just trying to clarify a little.

SS_Ry

once our chev-tak kicks in...no honda can keep up