tokyoracer

okay... here is the thing... last weekend after church... one of my friends was telling me that his vtec on his gsr turns on at two different rpm. he said the first one goes off around 4500 and the second one goes off at 5500... so here i am stumped and thinking that he is bs-ing... but can someone tell me if he is correct?

now as for my SOHC ex... i don't even know when the vtec kicks in... cuz it doesn't produce any kind of high pitch sound or makes me feel like the car is going any faster. does the vtec on sohc kicks in at 5500???

jordan88

if you have a cai intake, you might be able to hear it.

tokyoracer

jordan... i do have a AEM cai... but at which RPM does the vtec go off on the d16y8?

crucial Si

bullshiit..wtf is wrong w/ people these days...



ok the guy w/ the gsr is bullshiiting you....and your ex VTEC crossover is at 5000 rpm....

tokyoracer

thanks crucial... that's what i was thinking about the gsr. so the cross over for d16y8 is at 5000 rpm... but i don't hear anything... except it does pull a tad bit harder... lol

mc_intergra

YES, that's correct (almost). The GSR has two points of engagement for vtec. When it kicks in varies becuase of diffrent things such as throttle position and a few other minor things i can't excatly remember right now. But usually the first stage kicks in at 4400 rpm, then the secondaries open up at 6100 or somewhere around there. But yes, there is two stage vtec on a GSR.

:stupid: , why don't you learn what youre talkin about before you respond.

96extec

I have never herd of the 2 stage vtec...... :werd:

silentrage

you wont be able to feel the e-VTEC on SOHC cars. and yes there is a stage 2 VTEC. i pretty sure that all the higher performance VTECs have 2 stages, don't quote me on that tho.

silentrage

e-VTEC is the economy VTEC which is more for fuel ecomony more than anything, the i-VTEC is the high performce ones that you can feel.

mc_intergra

this is the new vtec (ivtec) which came out in 2002 i believe, with the rsx type s and the new civic si, but there is still a diffrence in those two. The "old vtec" was still something you could feel on engines that were perfomance minded, such as integra's and preludes and i think civic si's, but not sure about the si's. But the new si's are fuel effiecent minded, so there ivtec is not that noticable, but the rsx is. So even with the new ivtec is variable in being noticable or not. Get what i'm saying or am I just being confusing? Oh well, I'm sure somebody else will explain it better.