2genCRX

I have a A6/Y8 mini-me lying around that I plan on droping into my 90' CRX. How do I activate the Vtec? I herd that an RPM activated relay would work, but is not the best way to go. I dont want to spend money switching harnesses and ---- like that. Maybe a piggy back system like VAFC, or does that requier a Vtec ECU in order to manipulate Vtec engagement?

hotrex

vafc rpm switch or turboedit 1 wire vtec code are all your friends

2genCRX

So does that means I can use the VAFC without a Vtec ECU, and still get Vtec on my mini?

88crxSi

i believe so.

I would do research on the Turboedit vtec capability.

you already have the pm6.

88b16civic

you could do the shift light trick if you have an aftermarket shift light.

abadboy90

i used a summit racing rpm switch with a 30 amp relay to activate my vtec works fine

tomcat

what is the shift light trick

AgentMurdoc

^ I believe that's when you wire your vtec line to the shift light, and using the tach to set the rpm where vtec kicks in. I thought about doing this awhile back, I'm cheap, I didn't know that people actually did it.

tranceminister

Thats correct, you just wire it to the shift light signal wire and set the RPM you want the light to turn on at, and... Bam! Vtec activation is complete.
you could also do it the super ghetto way and wire it up to an on/off switch such as an A/C button or window de-fogger button... That is of course if you want to be turning vtec on and off manually

Slo_crx1

Unfortunately the tach light trick doesn't always work. I tried this offa relay, but didn't work. For some reason, most tachs use a intermitent negative signal to light the shift light...meaning the light has 12v+ at all times, and when the tach reaches set rpm, activates a ground to the light to light up. Right now i'm only usin the "switch" method, and it sux ***. If anyone has more info on the TE 1-wire vtec setup, please...let me know!