This is an instruction on how to replace the TIU circuit board with a HEI Module. Based on the 1977 model, but it can be adapted to the later 1978 model with the square plug of the early 1976 model with dual pickup.
Comment and improvements welcome.
EuroDat

Inspection document and checklist for build of Nissan Vintage 240Z program.

This is a list of all the Bosch Jetronics EFI connectors 2-Pin up to 7-Pin.
All connectors and "Standard" rubber caps were still available in November - December 2016.
Information can be found on the Bosch connectors website  https://www.bosch-connectors.com/
BOSCH CONTACT HOTLINE
(US) +1 954 635 4543
(UK) +44 151 2373412
(DE) +49 391 6073002
EuroDat

This is a rough writeup I did in order to bring up a alternative to the stock EFI relay that have gotten so expensive in the last few years.
Please send me a message if anything should be edited or explained better

Tech tip on how to build your own spindle pin removal tool

Original Article Enrique Scanlon (2004) - Revised & Expanded with Bob Kroshefsky (2011) 
Pictures by Bob Kroshefsky (2011)
P/N Breakdown by Bob Kroshefsky (2011)

This is a part list with all the main replacement components. Some components are no longer available through Nissan. The dimensions are given where possible so people can source aftermarket parts. 

A number of people refer to this document for repairing the 280Z clock.
The thread where it was originally posted is no longer available so I'm posting it here in the tech articles. This is where is should be.

No credit on my part. That goes to E. Bettio for writing the article and Monkey Man for posting it

This simple document identifies the external differences in the 280Z, 280ZX "wide" and "close" ratio transmissions. Each transmission has a basic description and photo's of what to look for on the transmission.)
Specifically for the 280Z and 280ZX models in the USA and Canada.
Explans what the Code F5W71B means.
Transmission specifications per model: 280Z, 280ZX, Coupe and 2+2. (Does not cover the Turbo model 280ZX).

Installation instructions for a 12v Electronic Ignition distributor swap

Instruction - Fitting a 4-pin HEI module to 280Z 1977 RevD.pdf

As indicated, Enrique Scanlon, who passed away WAY too young in 2013, created the basis of this document in 2004. As I started working on my car, I contacted him with suggestions and he collaborated with me to produce the 2011 version. I have since then added a few things to produce this latest version. I hope it is of some use to my fellow S30 owners.
Bob Kroshefsky (Seppi72)