l28et swap FACTS

[drummingpariah]

I'm tired of looking through thread after thread of anecdotal information without getting any hard answers to questions regarding l28et's into s30's. I'm looking through my own (purchased half-finished) swap now, trying to identify all the connectors that are disconnected. I've gone through the wiring diagrams for several s30's (mine happens to be a 75 280z) and all the l28et-powered manuals (81-83), and still have a lot of unanswered questions.

 

Here's what I want:

Identify each connector, then establish its purpose in the harness. Lay out differences in models and any information worth noting during a swap. I've started a document to organize this information, and would LOVE any collaboration I can get.

 

Please Contribute

 

If you have data but don't feel comfortable updating that spreadsheet, please email me directly with your facts (be painfully specific) and/or photos at jesse@drivendaily.org

[iwayman]

Simple search results in this guide http://forums.hybridz.org/index.php/topic/38461-240z-260z-280z-turbo-swap-guide/

[Stupid_fast]

You can get the FSM and complete wiring diagrams from XenonS130.com

 

I believe they have the colored diagrams on that site. Trace each wire in the diagram, then you know how to hook it up.

 

Its how I verified the wiring on my 83 N/A -> 82 ET swap. Its literally like 4 wires to get it running.

[captaingamez]

The best answer is: sell the original ecu/harness, and buy the cheapest Megasquirt system and you are already miles ahead of the stock ecu.

[Stupid_fast]

@captaingamez, stock ECCS works just fine for running and driving.

stock harness and 300ZX ECU swap is probably way simpler and cheaper than megasquirt setup.

[captaingamez]

I dont know how much simpler it is, its probably cheaper.

 

The original ECU is OK, but an MS is much better, and honestly they are really not that pricey, I mean you can get a fully ready to go setup for like 350ish I believe. You just need a few cheap sensors and a reluctor wheel