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EFI v/s Carb


mike f

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If you had a choice would you better off with efi or carburetor, I know there are pro's and con's on both sides as well as what each person prefers, but as I look at the empty bay where the 4 cyl sat, I contemplate which way to go, so I thought I would ask all of you throw your opinion at me........or should I ask, what are the top running cars using. I suspect it's efi.

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EFI, no question. There are only a handful of carb cars, and those that got em sure love em, but mostly because they're delirious.

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Why thank you, Mr. Simpson!

 

To address the question...there are advantages and disadvantages for carb motors. One positive is that they like to rev up high and TPIs don't. Carbs don't have the torque curve of the TPI (we are talkin' 3rd gen, yes?), however, you can make a good deal of that disadvantage up with gearing. Another plus is that carb motors are simple, available and cheap. The bottom line is that carb cars are fast and competitive. There ya have it! Pick your flavor and come join us!

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Converting a carb'ed car to EFI or in your case a four-cylinder to EFI is a lot easier said than done. It can be done, but you will spend a lot of time and money chasing down all the odds and ends you need to make the conversion, including the fuel system (tank and pump), all the engine sensors, wiring harness, not to mention the engine itself with all the necessary EFI hardware. Having converted a four-cylinder Mustang to a carbureted 5.0L before myself, I can say that you will be up and running with far less aggravation with a carburetor. If you want to run CMC with an EFI car, I would suggest starting with one. Otherwise, I would go with a carb in your situation. All you need BTW, is a set of engine mounts and a V-8 double-hump crossmember and a 5.0L will bolt right in place on the stock K-member. You will also need to upgrade the spindles to take V-8 brakes, so you shjould consider doing the SN95 5-lug swap too. Good luck.

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I don't think you can count the sourcing of the sensors and necessary components individdually in this case. In either case, sourcing a complete motor is required.

 

One can either source a complete carbed motor or an EFI motor. We're not converting one to the other in this scenario.

 

An EFI gas tank can be had for a few dollars and then it's running a return line only. Simple stuff ...

 

As I see it ...

 

... the upside to a carbed car is it's simplicity in how the motor gets it's spark and fuel. The down side is as the environment changes (heat, humidity) the motor suffers from being unable to compensate.

 

... the upside to an EFI car is it's reliability and consistency. The down side is getting it there.

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