LOL... oh how sad. The FD1 is a SOHC ivtec setup. There's no crossover line where vtec kicks in.

Basically for the FD1 it goes into vtec (fuel saving mechanism) mode when you are under 2.5 krpms (some say 2.3k) and are under low load.

But while i'm here I'll mention it again: I'd be interested in a ivtec indicator - to basically tell me when the fuel saving ivtec mechanism is operation - not quite as ricey as good ol dohc vtec... but it'd be interesting to see how you can slightly change ur driving style to save fuel consumption. I'm curious how often it switches between normal mode and ivtec mode while doig normal stop start traffic.