Efi Or Carb?

[smedic2547]

I have a very tired 5.0 EFI. I just bought a newly rebuilt 5.0 with big cam that is carburated with 2500 miles. Should I keep the carb or rebuild the EFI? I will mostly be street driving or pulling a 3000 lb Travel trailer. I am currently running 37in. tires with a 411 rearend. Any suggestions????? Thanks.

 

[Natron]

I had an '84 with a carb, now I have a '95 fuel injection. Just the cost savings in gas makes it worth going fuel injection in my opinion. It works much better at higher elevations also.

 

[4xfan78]

I agree if you can go with fuel injection with little cost I would throw the carb in the trash. Too bad they dont have efi for 400m's. (

 

[Txquadhunter]

you don't state the year of your Bronco. But yes a EFI system is much better then a Carb'd rig. If your Bronco is new enough to have the MAF EFI system they'll easily work well with big cams and upgrades to a point. The SD system will allow ease of cam upgrades and such to about 20% more.

try www.fordfuelinjection.com for lots of info over it.

 

[Gunner]

CARBBED UP!!!!!!! wouldnt trade my carb in if someone offered to give me fi and install it for free. i love my carberator and unless you have a lot of money i suggest you start liking it to. to convert a carbbed engine costs a pretty penny.

 

[Shadow_D]

You say you already have the EFI in your truck but the new motor is setup with a carb, right?If that is the case then KEEP THE EFI!

You may want to replace the injectors and will want a top end gasket set. Also you should throughly clean the plenum inside and out.

Fuel mileage is a big deal now, next year they say the cost of a gallon of regular unleaded will be around $3.00 & I will be willing to bet any amount of money that the following year it will be between $3.50 & $4.00 per gallon, my guess is it will be closer to $4.00 which INHO it total Horse $h!%.

 

[freak]

Carb all the way.

 

[Seabronc]

Keep the EFI. Converting to a carb from an EFI would basicly require trashing your existing computer and harne3ss and getting a harness and computer for a carb.

I happen to have a carbed 351 but wouldn't convert to a EFI for the sane reason you shouldn't convert to a carb. That is assuming that fuel economy :lol: if there realy is such a thing in a Bronco, is your goal.

I love a carb and wouldn't convert even if I had an EFI setup.

Good luck,

>-

 

[cowboydan]

i have a 5.0 with 305,000kms. gave her a lil' tune and i have no power problems. i don't think carb is a good trade cause o fule eco, but carbs always step out and need constant tuning, jetting and if you go to the mountains the thin air hurts carbs way worse than efi

 

[hawk2100n]

the design of EFI does get more torque and fuel efficency than a carb but EFI is much harder to tune being that everything is controlled by a computer. carbs are easier to tune and also provide more flexibility for upgrades in the engine.

P.S. because this is such a popular subject, we should add a dedicated section in the how to formus about this subject.

 

[Gunner]

this isnt in the HOW TO topic guidelines. thios is people talking about whether or not they should do it. the HOW TO is for someone who actually did it.

 

[4xfan78]

Good point Gunner.

 

[207racing]

Ok, for those of you that have removed efi for the choice of a carb. Obviously you have to replace the high pressure inline pump with a low pressure one, would you disconnect it, or leave it in place and running?

Reason I ask is I just got the EFI put back on and I have rough idle when cold and wont start when hot for about 10 minutes after you shut it off. I just tested the tank pump and it isn't running. I am hoping it is disconnected somewhere.

 

[custom_78]

I agree if you can go with fuel injection with little cost I would throw the carb in the trash. Too bad they dont have efi for 400m's. (

4xfan78, you can buy an aftermarket system and adapt to the 400m. My dad jut put a BDS fuel injection on a #51 windsor braket racing motor with the bug catcher type throttle body. It may be a little epensive but it can be done.

I would also go for the EFI instead of the carb.