Fuel Injection conversion to carburetor
#1
Fuel Injection conversion to carburetor
Is there any reasonable way to convert a 94 5.2 liter from EFI to a carbureted system?
I'm having a **** ton of problems with my computer and sensors and I'd love to be able to throw all that crap away.
I figure I'll need a new manifold, carb, distributor, maybe ignition, different fuel pump....what else and is it even possible? Thanks.
I'm having a **** ton of problems with my computer and sensors and I'd love to be able to throw all that crap away.
I figure I'll need a new manifold, carb, distributor, maybe ignition, different fuel pump....what else and is it even possible? Thanks.
#2
The manifold is easy... there are a couple out there specifically designed to swap in a 4 barrel carb. Check summitracing.com.
You will need a stand along ignition system, like an MSD box, since the ignition is completely controlled by computer.
You will need a new fuel system, since carbs run around 8 psi and MPFI runs around 40 psi.
Then, you'll need to figure out the gauges that are controlled by the computer.
It is very possible, and probably wouldn't be too hard to do. I've looked into it many times.
You will need a stand along ignition system, like an MSD box, since the ignition is completely controlled by computer.
You will need a new fuel system, since carbs run around 8 psi and MPFI runs around 40 psi.
Then, you'll need to figure out the gauges that are controlled by the computer.
It is very possible, and probably wouldn't be too hard to do. I've looked into it many times.
#5
And fuel milage will definately fall!! The whole reason manufacturers went to fuel injection and have been improving it since the start is to get more and more efficiency. Think about it... when you tune a carbbed engine, it has a specific tune set to it that was set with a particular grade of gas at a certain elevation, temperature, and humidity. That means its going to be at its highest efficiency with that same gas and at that same elevation, temperature, and humidity. I know here in North Carolina, the weather changes every 5 minutes this time of year! A computer uses all the sensors to do real time tuning to keep the air/fuel mixture right despite atmospheric changes.
#6
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Heinz Edgar Rose (02-22-2020)
#7
Baca - TBH, it sounds strange to claim you want a carb for reliability.
Let me put it this way - consider how long motors lasted back in the 60's and 70's (where at 100,000 miles most motors were toast), and how long they last now (I'm at 294,000 miles and chugging away ... )
What all's been breaking in the EFI/ignition system on your current truck?
RwP
Let me put it this way - consider how long motors lasted back in the 60's and 70's (where at 100,000 miles most motors were toast), and how long they last now (I'm at 294,000 miles and chugging away ... )
What all's been breaking in the EFI/ignition system on your current truck?
RwP
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Bidder53 (03-16-2020)
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#8
Where do you live I live in Washington towards Olympia I know a fair bit about the MPI on the magnum powered dakotas. The problem with switching to a carbed setup is your gas mileage will go to hell you would need to put in a pressure regulator as carbs work on less fuel pressure. I see this acting like a house of cards you change to a carb setup now the ignition system is wonky from not getting the right signals from the fuel system then you change to point ignition system the emissions system goes wonky from not getting signals from anything. Like I said the MPI system is pretty simple component wise. If I can I would like to help.
Dudester
Dudester
#10
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Heinz Edgar Rose (02-22-2020)