StangSlider
Spectator
just got an s13 shell today... i was wonderin, does the ECU and/or wiring harness tie into the wiring with the ignition switch on the column?? im going to make it push button ignition.. it has no ignition or a key. so... 
why do you want a push button start so bad?
CUZ YOU CANT BUILD A RACE CAR WITHOUT ONE!! DUH:bigthumbu
a simple way is splicing(cutting into) the small wire that goes to the starter its self, just take that wire disconect it ,it has a spade conector , extend the wire to the dash, and use the proper wire gauge and proper SOLDERED conections to the jdm button and the other side of the button run it back to the starter, with proper wire gauge and soldering, you will still need a lock for the steering wheel, or get kill switches to turn power on to all the accesories , and make it more dtm, also when they steel your car they might need those switches for nos or fog lights
a lock assembly for s13 at advance cost 37.83 here in orlando just called , comes with 2keys, if its auto it cost 48.99 , mabe because it has the key lock solenoid allready installed you dont need that race cars are not automatic transmission or unless you are gonna be doing 1/4 mile