carb vs efi
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carb vs efi
OK so I've got a 1985 EFI f150 and the EFI has been giving me problems. I'm thinking about swapping to a carb cause of cost. Whats the advantages/disadvantages of carbs and EFI? and I've been checking craigslist and I found a carb setup from a 1973 mustang 302 would that be interchangeable with my truck or not?
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Carbs are a lot more simple though propper jetting still is needed from motor to motor, altitude/pressure correction, etc. the advantage of EFI is in the unmatchable tuning. That tuning has its advantages yet in most cases doesn't make enough difference to merit the cost. I personally love EFi. I have aftermarket setups on three of my cars for different reasons such high boost with high compression on pump gas, Fuel & timing control for MPG, and trigger firing to eliminate that dinosor they call a distributor.
You can accomplish a lot of the same things with vacuum controlled electronics while using a carb, but then you are still dependent on a strong signal. In your case it sounds like the carb would prolly do fine.
Also, 85 mustangs were roller motors with carbs... That is where I'd start looking for parts...
You can accomplish a lot of the same things with vacuum controlled electronics while using a carb, but then you are still dependent on a strong signal. In your case it sounds like the carb would prolly do fine.
Also, 85 mustangs were roller motors with carbs... That is where I'd start looking for parts...
MSEE
Joined: Apr 2004
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From: Austin, TX
It's going to save you a LOT of time and money in the long run to troubleshoot what you've got and fix the actual problem instead of ripping it up to retrofit a carbureted setup. The other alternative would be to find an earlier-model truck that's already carbureted. With this swap you're not just talking fuel delivery; you're also talking ignition, all the associated wiring, etc.
New User
Joined: Feb 2012
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From: NE GA
I've got an 89 F150 with a butchered 93 351w EFI motor swap. I've started the process of converting to a 4 barrel Holley. If you're on a budget it's labor intensive to round up the parts. Junk yards have crushed so many older vehicles they're getting harder to find parts for. I started hunting a month ago (Craig's list, eBay, junkyards, and parts stores) I've ended up buying a whole motor ($140) for the intake manifold, an old Holley 4160 600cfm Carb ($30) off Ebay that I'll have to rebuild ($30). I've just begun to look for ignition components. The worst part is figuring out what is compatable with which engine. I initially came on here tonight to ask which distributor will fit my 93 EFI that will work with a carburator. I've heard it has to be a certain type. True? Not true? Help please.
And after all this I still need to convert the fuel delivery system (fuel pump). It's become a time consuming and expensive endeavor even though I've gotten some good deals.
I'm seriously considering attempting to get the EFI fixed and building my spare 86 351w to drop into something else. Maybe my 94 Ranger. Too crazy? Anyway, the conversion is something you need to think about before you pull the trigger.
And after all this I still need to convert the fuel delivery system (fuel pump). It's become a time consuming and expensive endeavor even though I've gotten some good deals.
I'm seriously considering attempting to get the EFI fixed and building my spare 86 351w to drop into something else. Maybe my 94 Ranger. Too crazy? Anyway, the conversion is something you need to think about before you pull the trigger.
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