@retarder
neither i am a nerd, nor a guru, just an average electrician...
@KIPLIP
did it on an altis, limited to 120, simple, a ucontroller which had vss as input and a relay which can shut the fuel pump, as the car hit 120 it shuts of the fuel...
though later tinkered with cutting the ignition, which in my opinion is much better, though didnt implemented it