The chassis has been stripped down to damn near nothing. The wiring was pulled last fall. Originally I was going to strip out all extraneous wires and plugs. I got about 90% done and was like... WTF. This is a huge mess. So I threw it on a shelf and never looked back.
After this I had decided to wire it from scratch... until I did Matt's racecar. With his 240SX, I started from scratch. We needed the basics for brake lightes, head lights, switches, fuses, alternator and several wires for the TEC2 ECU. I got it done, but it was a LONG week. We had trouble getting the alternator to work (We used LED's instead of incandecsent bulbs.. the resulting low resistance resulted in the alternator not actually charging... the car would run for a few hours great off the battery until the voltage got too low and things would just get weird. We ended up missing a dyno day which led t us missing a good shakedown day, which in turn led to a loose wastegate foiling Matt's plans of Qualifying for Formula D in New Jersey. I still am pissed about that.
At this point I was set to buy a Painless Wiring kit and do it really fast. While I was searching and looking into it more and more, I was like.. damn.. for $250-300 I could come up with something just as good. Its not like I havent dont this before!
Now I had to work in my new toys I had bought since Winter: an Autronic SMC full standalone ECU and an MSD DIS-4 ignition. Luckily the documentation for these was available online (and came with the stuff when I eventually got it).
<a href='http://www.autronic.com/technical_data_ ... MCwire.pdf' target='_blank'>Autronic SMC Wiring Diagram</a>
<a href='http://www.autronic.com/technical_data_ ... _4coil.pdf' target='_blank'>Autronic SMC to MSD DIS-4 Wiring Diagram</a>
So over the next few months ( I actually just focused on school and the engine until about 3 weeks ago) I drew up a list of what features and switches and such that I needed, and developed a wiring diagram off of that and a physical layout off of that. One thing I am fiddling with is circuit breakers instead of fuses.
I determined that I needed the following:
Switches: Ignition (IGN), Start (ST) Button, Lights, Anti-lag, 2-step
Breakers: IGN (30A), ST (30A), Accessory (30A)
Dash Lights: IGN, Check Engine Light (CEL), Oil Pressure, Charging (ALT), Low Fuel, Shift Light(s)
Relays: MSD, Injectors, Fuel Pump(s), Fan
I also needed the "modules" to be separatable. This is so if the switch panel needs work, you could detach it easily enough. This also allowed me to upgrade and improve a section at a time if I saw that it was needed. The engine was also considered a module as it needs to be pulled on occasion. In the end I had it layed out phsically in 4 modules: ECU/MSD/Relay board, Switch Board, Light Board, and Engine.
After a few nights of revisions I had a final diagram.... and you're going to have to wait a few hours for that as I'm just starting to draw it up on the computer
