paddock car diy

Hi, im new to these forums and this is my first post.  A bunch of mates are all getting a few paddock cars togeather for some fun. I have a nissan pulsar i think its around 1991. I want to wire in a start button cause it real hard to start with the key and was after some info. I was thinking, that on the back of the keyswitch would be two wires for the ignition contact which i would need to put a switch on to enable, then another pair of wires which would be the starter relay which i thought i would just wire a n/o push button over. So, In theory, use the first switch to turn the ignition on, then hit the second push button to start. Am i on the right track here? Any wiring diagrams would be appreciated, i cant seem to find anything on it. Thanks in advance!

I think you have summed it fairly well. The ~1990 Pulsars are EFI (I know the N13 is Delco), but hacking the IgSwitch is probably the way to go - various relays handle the EFI, starter etc. But you may need the correct wiring diagram to see if there is more than one IGN +12V or starter signal, and then determine if it matters (or can they be commoned etc). And then there are the accessories - but they could be added to the IGN +12V if on during cranking is not a problem.

Thanks for you your reply. Would anyone happen to have the 1991 nissan pulsar wiring diagrm for me?