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Old 08-24-2005, 12:51 AM   #1 (permalink)
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Converting Carburetors to Fuel Injection, is anyone offering this service?

Is anyone making a business from converting carburetor Toyotas to fuel injection?

Anyone ever heard of it being done on older Toyotas, like a 1978 Toyota Corolla Wagon?
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Old 08-24-2005, 02:05 AM   #2 (permalink)
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just get better carbs.
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Old 08-24-2005, 06:39 AM   #3 (permalink)
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Ive seen the kits to do this, but they were all for older american V-8s. I dont think ive ever seen one for a 6 cylinder let alone a 4 cyl. Someone might make them but converting it might end up costing you more than the car is worth, if its even available.
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Old 08-24-2005, 06:55 AM   #4 (permalink)
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MyCorolla.. yes there are kits available but are now very hard to find. if you have a T motor there's an EFI set-up for sale on e-bay a while back i don't know if it was sold or not. there's a guy at www.kp61.net that's converting his 3TC to an EFI turbo, his username is Eville164 (i think?). however, if you have a K motor, just get a newer engine from an '83-'84 Starlet, theyre EFI 1.3L.

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Old 08-24-2005, 08:22 AM   #5 (permalink)
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Quote:
Originally Posted by REN69


just get better carbs.
Not that easy. It seems to me that tuning a carburetor so that it passes smog is made murky by the fact that a newer cat will mask a poorly tuned carb by burning the excess fuel. This causes the cat to wear out way too fast, which then reveals the carb problem.

I don't want to keep catting and mousing this situation. It seems the ideal way to tune the car would be to completely bypass the cat, adjust the carb for optimal burning, then reattach the cat, but NOBODY that I know does it this way.

The result is having to change the cat every year or two, and I don't want to keep doing that.
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Old 08-25-2005, 05:24 PM   #6 (permalink)
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www.toyota3tc.com

The Racing Store makes a kit for it
butit cost about 1300$us so better keep your carb or change to an efi motor!
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Old 08-25-2005, 06:26 PM   #7 (permalink)
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Why, is that too much money to spend on an old car? How come?

You buy a new car and it instantly devalues 3-5 grand when you drive it off the lot, then continues to devalue at a minimum of 3 grand a year. Car insurance costs at least a thousand dollars more.

If I keep the car for just one year after doing the conversion, the car has paid for itself, no?
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Old 08-25-2005, 06:59 PM   #8 (permalink)
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i dont think so
you cant do money with a car unless its a vintage car. ie charger 69 r/t hemi
my 2 cents!
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Old 08-25-2005, 07:29 PM   #9 (permalink)
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just change engine once at it dude. My corolla was a 1.3L SOHC carb. Now 1.3L DOHC turbo!!!

Otherwise you gona have a decent amount of custom work - either way, i don't see it worth it, but what is worth doing or not is upto you.
You would need to make a custom inlet manifold for sure.
A few screw threads and sensor fitments.
And an ecu like some microtech or something.

If Flashmn was here, he would tell you to stick to carbs. And for car like yours which seems to be such a hassle to convert, i would definetly agree - go full out on carb tuning - and learn to tune it yourself instead.
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Last edited by NDR008; 08-25-2005 at 07:32 PM.
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Old 08-25-2005, 08:08 PM   #10 (permalink)
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No Problem, it's easy!!! All you have to do is spent massive amounts of money on a piece of shit car, and you too can have fuel injection. Hmmm, I have a question....since gas is getting so expensive I'm wanting to convert my engine to run on methane gas(cow shit). I've heard it can be done, is anyone offering this service??? Help me out on this one please.....
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Old 08-25-2005, 10:33 PM   #11 (permalink)
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Quote:
Originally Posted by dirt666
No Problem, it's easy!!! All you have to do is spent massive amounts of money on a piece of shit car, and you too can have fuel injection. Hmmm, I have a question....since gas is getting so expensive I'm wanting to convert my engine to run on methane gas(cow shit). I've heard it can be done, is anyone offering this service??? Help me out on this one please.....
So new cars don't devalue 3-5 grand when you drive them off the lot, don't devalue an additional 3 grand a year, don't cost more to insure....
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Old 08-25-2005, 10:36 PM   #12 (permalink)
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Quote:
Originally Posted by NDR008
j

If Flashmn was here, he would tell you to stick to carbs. And for car like yours which seems to be such a hassle to convert, i would definetly agree - go full out on carb tuning - and learn to tune it yourself instead.
Why is it hard to convert? Who said that?

As for tuning, don't you get the part about the cat camoflauging how well the carb is set, and a carbed car can pass smog one year, and then fail miserably the next year because the cat has worn out.
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Old 08-25-2005, 11:17 PM   #13 (permalink)
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Quote:
If Flashmn was here, he would tell you to stick to carbs.
Yes and no, I'm satisfied with carbs, but EFI would be nice too.
EFI conversions, well its not all that hard to do, you'd probably have to make an intake manifold for yourself, plus change the fuelpumps.
http://www.twminduction.com/Home/Home-FR.html
You can buy throttlebodies and stuff from there.
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Old 08-25-2005, 11:23 PM   #14 (permalink)
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Quote:
Originally Posted by MyCorolla
Is anyone making a business from converting carburetor Toyotas to fuel injection?

Anyone ever heard of it being done on older Toyotas, like a 1978 Toyota Corolla Wagon?
You have a few options for converting to EFI with a 2tc or 3tc motor. 1st option is to get the factory 3tc EFI setup that was available in some cars overseas. 2nd option is to go to places like paradise racing and get a custom manifold, fuel rail, electric pump and a stand alone computer and have a nice flowing air/fuel system. 3rd option get a sidedraft carb intake manifold and then get a weber individual throttle body kit and hook it up for ITB's. PErsonally if it were me I would just go sidedraft carbs but that is my personal preference. Basically it depends on how much you want to spend and what your plans are for the car. If you are just thinking EFI just for better gas mileage or better effenciany then it isn't worth it just stick with carbruation and get a better carb or just tune your current one. IF you are looking for ultimate performance then EFI would probably be your best bet. Especially if you want to turbo.
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Old 08-25-2005, 11:35 PM   #15 (permalink)
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In California, smog regulations are pretty strict.

I passed smog with flying colors after having a new cat installed. One year later, I failed, and failed by quite bit, it wasn't even close, even though I only put 4 or 5 thousand miles on the car.

Why did this happen, I believe it happened because Carburetor tuning efficiency is masked by a new cat. A new cat will pretty much remove most of the unburned fuel, yet what is really happening is the cat is working overtime for an otherwise inefficient carb system.

A few thousand miles later, and the cat is burned out. time for another cat, and another, and another. I'd rather get a Fuel Injection system and not have to go through this yearly bs as it relates to smog. I'm for the smog regulations, I'm not for paying mechanics to do half assed work because I have put a new cat in the car and they know they can do less work tuning the carb and have it temporarily pass smog.
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