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[CapriProject]

If a 'crazy' person wanted to fabricate an intake manifold & run a carburator instead of the stock EFI unit could he trash the ECM & run the (N/A) Capri motor & 5-speed? I want to get this down to the real 'old-school' basics... fuel + spark + timing = running. (No sensors)

[rcdraco]

It's possible, but you need to know a LOT about carbs to get it to work properly.  And there's a reason it runs with fuel injection.  

Possible from the standpoint of anything can be done, not possible from the standpoint of "Hey Jimmy let's put this carb on here and it'll work fine".

[CapriProject]

OK, my question is more towards what else on the vehicle besides the EFI requires the ECM for the engine/trans to run. I want to trash the ECM & all it's sensors.

[Rocketman]

You trash it and you have no way of getting spark, unfortunately. Have to find some sort of standalone distributor that would fit. I dont know of anything remotely close.

There are a handful of Miata guys that have ditched the EFI for some Weber sidedrafts, but I dont know what they've done for spark.

If you're looking to ditch it simply because its electronic, well then that's kind of silly anymore, but I can understand it.

A good portion of the Festiva guys are still carb'd, a bunch of them have swapped the crap stock carb for a weber, the 32/36 I think. But they still have electronic spark though

[CapriProject]

The 86-89 Mazda 323s had carbs, did they have a "stand-alone" distributer?

[Rocketman]

That I don't know, but they were also SOHC, and the chances of anything from a sohc head transferring over are very low. I know for a fact none of the manifolds will

[bhazard]

86-89 323 were EFI...

[rcdraco]

1.6L 2BBl SOHC.  

I'm unable to find parts for it though, no carb parts, no mechanical fuel pump, so it is kinda odd.

[CapriProject]

I'm no expert... I just saw this 'report' saying the new 1991 323 was getting the EFI to go more 'green' than before.  http://www.theaa.com/staticdocs/pdf/carreports/AA_REPORTS/MAZDA_323_1.6I_GLX_FASTBACK_R9223A.PDF

[rcdraco]

That 323f is a pretty car, too bad we never got them here.

[bhazard]

I'm 100% positive the 86-89 323 B6 was efi... we swap them into festivas all the time... same exact engine just .3 more liters and 20hp.

Maybe the canoodians got carbies or something...

[Rocketman]

A lot of the foreign countries got carbs up until late... they still make a BF chassis 323 in south america, and just until recently (98?) did the go from carb to EFI. But they used a 1.1 or 1.3L engine mostly

Now that I think about it I have had 323 EFI ecu's from 323's back to 86 so Brad is correct

[CapriProject]

Well, as far as my project goes, I guess I'm stuck with the ECM because of the distributor so the idea of switching to a carb to get rid of the ECM is a mute point. Thanks again for all the info (even if it's not what I wanted to hear).

[Rocketman]

You say "stuck" like its a bad thing