Wiring New Electrical Circuits

There are quite a few new circuits to be added to the car to support all the new Fuel Injection add-on’s. Because of the additional load requirements of the car I have installed a larger Alternator. This has proven to be an interesting feat. There was quite a bit of wiring, voltage regulator, shut that had to be removed from the car.

I was looking for a solution that would allow me to remove the factory fusible links and put in a more modern appliance. I had to go to England to get the part I wanted. It should be here in the next week or so. This will allow me to upgrade the link to the original fuse box, power the ECU, power the new flame thrower headlights and finally the cooling fans.

All of this new wiring required me to work up a new wiring schematic for this particular job. It will help me with material and routing the wires to where they need to go.

260Z New Electrical Connections


Alternator and ECU Install Part I

This weekend was the beginning of the ECU project.
Firstly, the 37.5Amp alternator wanted replacing. The previous owner installed a 240Z Alternator in the car and not the 260 45Amp alternator. Even still the 45 AMP still would not have sufficiently generated enough current and AMPs to provide for the car once all the electrics are installed. The Z was fitted with a 120AMP alternator. The new alternator should provide for all the electronic requirements moving forward.
Second, after watching video from the Haltech website on installing the ECU they use Velcro on the backend of all their gear. My Haltech will get the same treatment.
Finding a location to mount the ECU, O2 Controller and the fuse panel has been a challenge. There was quite a bit of excitement when the fuse/relay box was included but now it is proving difficult to find a place to house everything.

Air filter and Heater Hose

This weekend was lots of different work done. There is a recycling center in Cumming that has a 280ZX and I needed a couple of parts off the intake manifold. The brake pipe and one of the small intake ports so I can control the Fuel Pressure Regulator.

Second the heater hose was still sitting open. I wanted to close it up and get some antifreeze back into it. Napa had the hose connector pipe and the hose. The heater hose and the connector went on easy enough. The Z took two gallons of Prestone antifreeze.

Last I ordered a air intake kit off ebay. It fits well. I will have to pick up a 45 degree silicone tube, a 3″ tube and a 3′ to 2.5″ 45 degree elbow. This should finish my intake parts. I am looking at ideas for my Air intake valve.