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L28ET to Z31 wiring Swap


UpstateZman

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HybirdZ family,

 

I'll be plain and blunt. I am not an electrician and the thought of any splicing or the converting of any harnesses just does not float my boat. I have never attempted a swap per se, but I have pulled and rebuilt motors for higher and more reliable power in their original intended applications. I have personally built (had no involvement in the tuning phase) and owned the following;

 

Z31 86 Turbo 356Tq/397hp on a NisTune (Stock internals, refinishing of heads, bearings, port and polishing, Holset hx35, 550cc injectors, gutted plenum, intercooler, 240sx TB, open dump, ect.....)

 

Z32 90TT 401Tq/439Hp tuned by Z1 (Headgaskets, new bearings, t28's, rings, all that good stuff, bigger intercooler, 3 in exhaust DP back, HICAS delete, blah blah)

 

I am no newbie to the Z cars. However, after selling my Z cars due to financial strains, I have been looking at getting back into the Z car life.

 

The dream of having a 240/260/280Z has always entertained me. I have the opportunity of acquiring a 1978 280z that is rust free and is currently running. Of course I will be upgrading the brakes, suspension, and all the other necessities to make it reliable. I am keened in on doing an L28ET swap with the Z31 ECU based off of my experience and likeness of my tuner with NisTune. However, the shop that I deal with has never done an l28et/z31wiring swap and is really not giving me the notion that they are comfortable in the task. They have been trying to persuade me into a JZ swap instead. Ok, cool. But the L28 is also an inline 6 motor and I'd rather keep it Nissan. I'm only looking for 350 to 400 hp which from my searches and observations, is very realistic and attainable goal of an proper built/maintained L28ET.

 

I am looking for someone who would be willing to help and nourish the required work of making this dream a reality. Basically, helping me in preparing an harness for the l28et to z31 harness swap. Plug and go. Compensation will be provided.

 

Thanks

 

(Now let the flaming begin, please use kerosene as it burns longer and hotter :rolleyes: :rolleyes: :rolleyes: :rolleyes: )

Edited by UpstateZman
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PM Bernardd. 

 

There really isn't a "plug-n-play" solution for a swap into an S30.  Even if someone already has or builds you a harness, it still has to be wired into the S30 (which is NOT difficult but seems to stymie a lot of people...).  The answer would be to have your "harness provider" label the connections that have to be made from the ECCS harness to the chassis wiring.  Seems to me that a shop that could figure out how to wire a JZ into an S30 could do the same for an L28ET...

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So cg, are you suggesting that he not contact Sakura Garage?  I was going off what's on your web site.  Don't want to send people down a dead end.

 

"We specialize in L28ET motor swaps and wiring the 280zx ECU into the stock harness. In addition, we build custom wire harnesses to use the VG30 ECU and components with a L28ET swap."

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Not at all.

 

So cg, are you suggesting that he not contact Sakura Garage?  

 

No, no, not at all..  I'm always happy to help people with their engine swaps, wiring problems, and I can certainly build a harness when someone has the need.  I also really appreciate your recommendations!

 

But I believe Bernardd has a fairly complete solution - and he was first (in more ways than one)...  It would be well worth the OP's time to shoot him a PM, get the info, weigh his options.

 

Actually, the final sentence was really the point of my first post - Think a JZ is any easier to wire into an S30 than an L28ET?  Should be: same-same - wiring wise...   

Edited by cgsheen
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Why go with a factory ECU at all? With all the modern stand alone options available these days you are much better off going that route IMHO.

 

Megasquirt, Haltech AEM and Microtech, are just a few of the options. Value wise and support wise, Mega Squirt is hard to beat. Even for the older series.

 

I'm currently in the process of converting my 1976 280Z to a Haltech E11 series. have all the parts now, just waiting on time and weather.

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