NISSAN!!! My grand parents drive a NISSAN!!!
TOYOTA!!!
Sorry for that little outburst, don't like nissans too much!!
Anyway,
A 4G63 powered E30, cool.
I love the 4G63, such a versitile engine.
My lancer EVO 1 has a 4G63.
When you take the BMW engine out label all the wires you have to cut, there aren't many. Take note of the ones going into the fuel pump relay, there seems to be alot of things controlled from there ECU, injectors etc...
All the other electrics should still work once the engine and loom are removed.
On the engine find the temp gauge and note the colour of the wires, you will find it again near the fuse box, check the range of the mitsi sender compared to the BMW one (the toyota one I have is the same), if it isn't you will need a new one if the BMW one won't fit on the 4G63.
The Tach runs off a black sheathed wire under the dash (3 pin plug, also has white wire for the economy gauge).
If you are using the stock 4G63 ecu you will need to find the tacho output. It is a low voltage gauge.
The Ignition key was the biggest pain.
When in the on position I had 6v coming from the Start terminal. Weird, So I couldn't use the key to run the starter because it would be cranking in the on position (6v was enough to flick the starter relay). So I've rigged up a very rice red push button to start it.
If you have a set of wiring diagrams for the 318i you will find it a piece of cake.
I'm going to check out those pics now!!
Glenn