Stick figure

Different ignition

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I've had my 83 zx in the driveway for over a year, haven't driven it on the road yet, more rust than car, but ready to start if I can figure out my problem. It runs and will move but before I start, I want to do away with the fuel injection and all the electronics. I found a 4 barrel intake, expensive but worth it to me. What should I do about the electronic ignition? I was thinking about points, but can't find a points distributor anywhere online. Any help will be greatly appreciated. I was going to swap out the 6 for a 350 but I've grown attached to the inline 6. I've looked everywhere for info on this and I'm just about ready to give up.

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Get a 240Z distributor.  It will drop right in.  You'll just need to identify the correct wires to make it work but they are all there.

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2 hours ago, Zed Head said:

Get a 240Z distributor.  It will drop right in.  You'll just need to identify the correct wires to make it work but they are all there.

He would need the 240Z distributor mount.

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Why not run the 280 Dizzy and match box. That gives the hotter spark with no points

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12 minutes ago, SteveJ said:

He would need the 240Z distributor mount.

True.  He could modify his also, I'd guess.  It's the clamping screw that's the issue.

Keeping the ZX distributor is the easiest.  It's not connected the to the EFI system.  You can keep it and run carbs.

I was responding to the question as asked.

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That's what I would do. Keep your distributor with the carb. That's what we've all done but with dual carbs. Should be the same.

The '83 matcbox has those extra 2 terminals on them. I think that's the e12-92 or something. I've read the extras are for the crank sensor but cant confirm. I also read you can leave that plug open. Another unconfirmed answer but the info is out there on the www.

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1 hour ago, siteunseen said:

That's what I would do. Keep your distributor with the carb. That's what we've all done but with dual carbs. Should be the same.

The '83 matcbox has those extra 2 terminals on them. I think that's the e12-92 or something. I've read the extras are for the crank sensor but cant confirm. I also read you can leave that plug open. Another unconfirmed answer but the info is out there on the www.

I'm pretty sure the distributor runs off the computer

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It doesn't. 

You can download a service manual from the site's downloads area.  Read the EFEC chapter, it describes the EFI system.  The Electrical chapter describes the ignition system.

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2 hours ago, Stick figure said:

I'm pretty sure the distributor runs off the computer

I don't believe there is any computer controlled timing on that car. I might be wrong, but if the computer is involved, it is only for basic power. The ignition is still pretty simple on the 83 cars

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1 minute ago, Zed Head said:

It doesn't. 

You can download a service manual from the site's downloads area.  Read the EFEC chapter, it describes the EFI system.  The Electrical chapter describes the ignition system.

Thank you

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After figuring up the price on what I want to do, looks like I'm keeping the fuel injection. It is kinda cool, a 83 model car with fuel injection. I'm sure I'll learn all about it and what I can do to make it run like a v8 without pouring thousands of dollars into it. I just went out and started it, got sea foam in the tank cleaning it out. It's 29 degrees and started right up, idling decent, just won't rev up quickly, tap the gas and falls on its face.

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11 minutes ago, Stick figure said:

I'm sure I'll learn all about it

A 280zx has a analog computer, it computes an output signal from many different signals it gets from de sensors to run the engine.. but it does not have a actual ECU.. (I'm glad it has not!)  this system was and can be still reliable.  (an ECU has a clock signal and a processor, this can not be found in any 280zx..)

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33 minutes ago, Stick figure said:

After figuring up the price on what I want to do, looks like I'm keeping the fuel injection. It is kinda cool, a 83 model car with fuel injection. I'm sure I'll learn all about it and what I can do to make it run like a v8 without pouring thousands of dollars into it. I just went out and started it, got sea foam in the tank cleaning it out. It's 29 degrees and started right up, idling decent, just won't rev up quickly, tap the gas and falls on its face.

The EFI guys here can help you get it sorted. Just provide lots of details and some pictures

Edited by Patcon
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Well this EFI guy can tell you that by 1983, the ECU's WERE computer controlled.

6801 microcontroller running at 4MHz

I don't know when the transition officially occurred, but by 83, they were programmed devices.

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Are we mixing the ECCS system with the EFI sysstem?  The ECCS system was used on the turbo engines.  Nissan went full ECCS on all engines in 1984, from my understanding, at least for the Z cars.

Google found me an old article about it.  https://trid.trb.org/view/183990

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2 hours ago, Captain Obvious said:

Well this EFI guy can tell you that by 1983, the ECU's WERE computer controlled.

And again i learnt something!

I've learnt in those years early '80 to program the 6802 …. 1 more than the 6801  haha... funny!   does the NA also have the 6801 or only the turbo version?  The turbo came only in 1983 in the Netherlands!  We had no 1981 or '82 turbo version..  they were all NA.   the turbo was an extra car imported in 1983, and 1984 came the first 300zx's.. 

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22 hours ago, Zed Head said:

Are we mixing the ECCS system with the EFI sysstem? 

The ECU I have here is from a non-turbo 83 with an auto trans. I believe it's the original ECU from the car.

I'll get the number off the case when I get a chance. And take a pic of the microcontroller.

 

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20 hours ago, dutchzcarguy said:

I've learnt in those years early '80 to program the 6802 …. 1 more than the 6801

LOL. Me too. Changed my life.  LOL

Interesting though about the numbers... The 6801 is a microcontroller with on-board RAM and ROM while the 6802 is just a processor. So even though the 6802 has a higher number, it doesn't necessarily mean it's "more".

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