i have read all the info on vtec e and how it locks the two valvels together. my question is how is it activated? from what i have read there is no vtec out put on the hx ecu...or is my source wrong? i would like to turbo my hx, but i would like to engage the vtec e at about 2000 rpms or even a little lower so i can make sure that i have a good fuel mixture while in boost. i don't want to run lean and end up detonating, because i only have one valve totally open and i am running way to lean.

 

I am a newb to Honda but not to cars and boost. I have an HX too and where vtec e hits "shouldnt" have ANYTHING to do with running lean. Like I said I am not super knowledgable on VTEC, but wouldnt he injectors and your fuel management and tuning determine if you have enough fuel??? I mean from my readings on this board, most people say Honda set VTEC at whatever limit it is at for a reason and it is left unadjusted.

 

when the vtec e engages it goes from using one intake valve to using two. this would restrict the amount of fuel you can get into the cylinder untill vtec e engages.

 

yeah but any turbo that spools under 2k is pretty worthless anyways. dont worry about leaning out your motor while boosting. but to answer the origional question there is a vtec pin on the hx ecu. a decent turbo on a d-series will likely spool arround 3k and that right about where vtec hits

 

get a vafc or something? idk!

 

ttt

 

get injectors, a a vafc/safc