302 carb to replace TBI
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302 carb to replace TBI
<TABLE><TBODY><TR><TD vAlign=top width="100%">I tried this in another forum but I didnt get any repsonses. Maybe this will help.
"I just got a carburetor off of a 1979 Ford Thunderbird and am going to put it into my 1985 Ford Crown Vic. The Crown Vic was originally TBI but I am replacing that because it will be going into a demolition derby.
My question is where do all of the vacuum lines go that are on the carburetor? I pulled it out at one of them U Pull and Save places. Some of the lines coming off of it werent going to anywhere. They might have been pulled off by someone else. So right now, I am at a loss. Do those lines have to connect to anything? If so, where?
Any help is appreciated. Thanks. "
Brandon
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"I just got a carburetor off of a 1979 Ford Thunderbird and am going to put it into my 1985 Ford Crown Vic. The Crown Vic was originally TBI but I am replacing that because it will be going into a demolition derby.
My question is where do all of the vacuum lines go that are on the carburetor? I pulled it out at one of them U Pull and Save places. Some of the lines coming off of it werent going to anywhere. They might have been pulled off by someone else. So right now, I am at a loss. Do those lines have to connect to anything? If so, where?
Any help is appreciated. Thanks. "
Brandon
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From: Puyallup, WA
If it is going to a demo derby, just hook up your PVC and away you go. Block off the rest, no sense spending any more time on something that has a short life span as it is.
Not sure though how your computer is going to deal with the lack of feedback from the missing TBI unit. are you changing the dist, fuel pumps, etc?
If not, then unless your paticualr class rules prohibit it, why not leave the TBI in place? If tou are concerened with getting tagged and your engine shutting off, this is caused a seperate momentum activating switch which has nothing to do with the TBI unit, and can be bypassed with a momentary reset switch, oil pressure activated switch, etc.
David
Not sure though how your computer is going to deal with the lack of feedback from the missing TBI unit. are you changing the dist, fuel pumps, etc?
If not, then unless your paticualr class rules prohibit it, why not leave the TBI in place? If tou are concerened with getting tagged and your engine shutting off, this is caused a seperate momentum activating switch which has nothing to do with the TBI unit, and can be bypassed with a momentary reset switch, oil pressure activated switch, etc.
David
Last edited by dmanlyr; Jul 2, 2007 at 10:40 PM.
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From: Marion, VA
You'll need to swap out the fuel pump because the electric pump will shut off on the first impact because of the switch that cuts it off in case of an accident. If you bypass the switch and leave the fuel pump, the pump will keep running if the engine dies and the fuel line is damaged or the carb. malfunctions.
If they don't allow fuel injections, it is probably because of the fuel pump and not the TBI.
If they don't allow fuel injections, it is probably because of the fuel pump and not the TBI.
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I guess I forgot to say some things in my original message. the reason I am switching over to a carburetor is because when we were tearing apart the car, we must have cut a wire that we shouldnt have. We tried to find out what was the problem and have had several people that are really good with engines look at the car for us but the fault couldnt be found. So we figured the next best thing was to convert to a regular carburetor.
The fuel pump has been taken out of the tank and replaced with an inline pump. I guess what we are trying to do is to bypass the computer.
So if i read this right, the vacuum lines can just be closed off and I will have to get a different distributor? I have heard of this before but wasnt sure if I needed it or not. Anything else?
The fuel pump has been taken out of the tank and replaced with an inline pump. I guess what we are trying to do is to bypass the computer.
So if i read this right, the vacuum lines can just be closed off and I will have to get a different distributor? I have heard of this before but wasnt sure if I needed it or not. Anything else?
Hotshot
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From: The Big, Oregon
Yes, send me your TBI unit for my Galaxie so the computer knows it's gone and will stop looking for it.
Basically, just need a 2BBL carb (should bolt right on), DSII distributor and blue grommet DSII module, and wire it up. Make sure any unused vacuum ports on the engine are plugged, and have fun-
Basically, just need a 2BBL carb (should bolt right on), DSII distributor and blue grommet DSII module, and wire it up. Make sure any unused vacuum ports on the engine are plugged, and have fun-
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Originally Posted by earnhardtracer38
Ok, thanks Ford-Six. I guess all that I need now is the distributor and the module.
If you decide to get a new distributor, consider our custom curved Duraspark Distributor built with our new Full Length Oil Impregnated Bronze Bushing. The full length bushing improves timing stability and spark scatter. If stock appearance is not an issue, take a look at our one piece D.U.I. Distributor. Whether you choose the Duraspark or the D.U.I., we curve each on a distributor machine based on your engine combination. Please see them at:
http://www.performancedistributors.com/forddistributor.htm
Also, there is now an excellent installation article on the D.U.I. Distributor on the Ford-Trucks.com site at:
https://www.ford-trucks.com/article/idx/0/358/article/DUI_Ignition_Installation_In_A_Ford_351W_V8.html
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From: The Big, Oregon
Eh, I wouldn't spend that kind of money on a derby car- in most DD associations, another racer can buy your engine for $500, so doesn't make sense to drop that kind of cash into it. You can get a stock curve DSII and module for about $60, less if you hit the junkyards, run a straight 12v to the box and use the car's original e-coil. I ran a truck like that for about seven or eight months until I swapped it out for -of all things- a DUI unit. I don't think I will be putting one in my car, though, DSII should work just fine.
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Originally Posted by Ford_Six
Eh, I wouldn't spend that kind of money on a derby car- in most DD associations, another racer can buy your engine for $500, so doesn't make sense to drop that kind of cash into it. You can get a stock curve DSII and module for about $60, less if you hit the junkyards, run a straight 12v to the box and use the car's original e-coil. I ran a truck like that for about seven or eight months until I swapped it out for -of all things- a DUI unit. I don't think I will be putting one in my car, though, DSII should work just fine.
Junkyard it vs doing it right.
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I'm a 20 year old college student that drives a truck and likes to have fun on the weekends. My friends and I have done 3 cars and every car has been free and we havent put over $100 in each car for parts and other things. The most expensive thing to date has been this carburetor at $40. So I think we are just going to junkyard it. If it makes the engine run for more than one derby, then it was well worth it.
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Originally Posted by earnhardtracer38
I'm a 20 year old college student that drives a truck and likes to have fun on the weekends. My friends and I have done 3 cars and every car has been free and we havent put over $100 in each car for parts and other things. The most expensive thing to date has been this carburetor at $40. So I think we are just going to junkyard it. If it makes the engine run for more than one derby, then it was well worth it.
Have fun!
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