4-barrel carb on ej22?

[douglas vincent]

OK kids, what if you take and mill a new intake into the top of the intake (blocking off the old butterfly valve area) and installing a big ass carb?. Now in conjuction to this, to avoid all the computer crap that throws problems at us when we try to change air flow and fuel flow, I would of course just (at this point) disconnect the fuel rails and wires to the fuel injectors.


Now of course comes the problem of the the ignightor and coil pack receiving information from the computor to keep the enging running. Now as far as I know all we are missing from this engine and an older engine is a distributor. What if we add one running off a toothed belt above the left head with a bolted or welded toothed pulled added to the existing pulley? Then add a distributor jury rigged where the air conditioner compressor normally is and bingo-bango, you have a distributor run ej22 that has no computor! Now as far as I can see, which isnt far sometimes, we have a motor that runs without a computer period! Adding gas and air and messing with the ratio doesn't do crap, it always runs! Of course we will have to "tweak" it and VTEC will not exactly work but all in all, what do you think?

[vrg3]

Last I checked, we didn't have VTEC.

This would be possible, but I'm afraid I don't see the point. Carbs aren't better than MPFI. The engine may almost always run, but it almost always runs already, and makes much more power and runs with better emissions than it would with a carburetor. Tuning the EFI system after drastically changing its characteristics is a different process from tuning a carburetor, but it has more potential to make use of the modifications.

But, anyway, I do know that other EJ-series engines have been sold equipped with a carburetor in some areas. I think the EJ16 was made in both carbureted and fuel injected forms, for example. I'd presume that it made use of a distributor. I don't know if these parts were the same (or nearly the same) as those used on earlier Subaru engines or not, but it's possible that you could somehow source them through a helpful dealer if they aren't. And if they are, you could try the parts from an old Subaru in a junkyard.

You'd also want to change the fuel delivery system a little, right? Pull out the pressure regulator and the high-pressure pump and put in a low-pressure pump or something?

You would need to put in a simple electronic system to control the other stuff, like the radiator fans. I guess you could just tear out the whole evaporative emissions control system.

Another relatively minor detail would be that the stock tachometer wouldn't work. You'd have to either use an aftermarket tach or make a little circuit to generate the signal it needs based on the distributor's signals.

I understand how the idea of a car not needing a computer is compelling. I loved my old 1984 Mercedes 300D. The electrical system on that car existed just to run the starter, the radio, and the lighting. And even though it was an automatic, it could be tow-started; the manual even explained how to do it! So the car could be used even if it had no battery or alternator. It might even survive the EMP of a nuclear blast and still be running. :)

But if you want a car to run without a computer, why not start with a car that has minimal dependence on its electronics to begin with?

[ciper]

But why do you want to, all the tuning issues with computers have a work around already. If you really wanted to do this why not just wire up your own computer to what is already on the car, then you can control every aspect of it with your laptop.

[douglas vincent]

a- no money
b- no laptop
c- no sense

[91White-T]

I can't even begin to imagine the massive amounts of work and also money that you would have to spend to do this. And in the end you'd have a worse running engine if it even ran at all... And VTEC wasn't even around in 90-94!!!

[LegacyT]

South African Spec Legacy's 1.6 -- 2.2L had carbs from the factory. Just thought I'd throw this in

Mark,

[SubbyRS]

yeah but they weren't 4-barrel jobbies....personally I think it would be a huge step backwards & a total waste of time, effort & money.....but hey, it's your dime...

[HomeSlice]

South African Spec Legacy's 1.6 -- 2.2L had carbs from the factory. Just thought I'd throw this in

Mark,

how did you find that out???

[LegacyT]

My dad worked on one imported from South Africa. Talked to the owner, and found out it was a completely stock factory car, with hitachi carb.

Mark,

[vrg3]

Someone's selling an EJ22 on eBay that's been configured for aircraft use and has a 2-barrel Holley carburetor. He doesn't say exactly how the ignition works, but from the low resolution picture it appears that there's a distributor mounted on the "back" of the "right" camshaft (I mean "back" and "right" as if the engine were mounted in one of our cars; it would be mounted facing the other direction if used to drive a prop on an aircraft).

It looks like it's in great condition:

http://cgi.ebay.com/ebaymotors/ws/eBayI ... 2417148556

[Brat4by4]

they switch engines over to use magnetos or something for airplane use.

[subiekid]

that thing would need one heck of a hood scoop!!!

[inzomniac]

It's even heated for those "low altitude" icing conditions

(heated carbs are needed in planes BTW, ever wondered what clouds are made of?)

[HomeSlice]

South African Spec Legacy's 1.6 -- 2.2L had carbs from the factory. Just thought I'd throw this in

Mark,

is this it?

[LegacyT]

Yup, thats the one.

Mark,

[subiekid]

http://cgi.ebay.co.uk/ws/eBayISAPI.dll? ... gory=10424

its no four barrel

[greggearhead]

I have to agree - would be more work than it's worth, but being a virtual exercise...

You could mount a one-barrel side draft carb in place of the throttle body. Or, you could adapt some air-cooled VW/Porsche intakes to work (basically a carb over each head).