Carb or fuel injection?

Carb or injection

  • I have a carb and will keep it

    Votes: 21 70.0%

  • I installed injection and had or I am still having issues

    Votes: 1 3.3%

  • I installed injection without an issue and it works great

    Votes: 8 26.7%
  • Total voters
    30
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I started in the automotive trade in the 90’s. When efi was still young. And so was i. 30 some odd years later, i have about had enough of troubleshooting digitally controlled systems. I did lots of reading about the megasquirt years ago and convinced myself that it wasnt worth the trouble.
Everything breaks down,no matter what it is. Its about the roadside repair vs waiting weeks for parts.
 
I assume we are talk'n classic cars. I'll stick with my carbs, though I understand those that go FI
 
Furious65 said:
I've seriously have wanted efi for my (hopefully) daily driver when completed. I was considering the Edelbrock multiport setup as I want it to work the best I can if I'm investing the cash. I have no problem installing the correct type of fuel system or doing proper electrical connections (as I was an auto security installation specialist in another life) so I know I got all that covered. Tuning could be a challenge as I understand carbs completely but have never played with efi conversions of any type. All the horror stories have kept me away from trying it.
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To be honest, I would buy injectors, intake, etc and then use either the Holley computer or a Megasquirt 3 Pro EVO or Gold Box. You can get a lot of internet support for any of those. The edelbrock stuff may have changed over time but when it says "doesn't require laptop tuning" might also mean what you can do is restricted.

I used a base fuel tune that it auto calculated and turned on the Autotune on my laptop and I could drive the car after idling in the driveway for 20 minutes. The Holley system is similar. I'm sure you can make your own timing curve to start based on what your engine already likes.
 
goldduster318 said:
Honest opinion on why someone might have an issue or believe this:
1) Many systems have the ECU mounted on the carb flange but yet most electronics are only rated for about 105C or 221F while operating. So they could easily get on the ragged edge there, as well as the vibration from that location. Get one with an external ECU and mount it inside the car and you won't have issues.
2) Most people don't want to do the stuff to do the most reliable type of fuel system (return system w/bypass regulator and in tank pump).
3) Many people just aren't willing to spend the time or money to make good connections to the existing vehicle (weatherpack connectors with proper crimper, solder/heat shrink, etc)
4) Not knowing how to tune it, but you have the same issue with a carb. Self tuning only goes so far.

I won't ever have to replace an accellerator pump, power valve, distributor cap & rotor or anything like that again. So I mean there's generally less that can get eaten up by fuel over time, though I still have the fuel pressure regulator.
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Bingo. Many reasons why I went with the Pro Flo 4. The ECU sits in the cab behind the glove box. Proper wiring that actually shortened many of the lines for a clean install, a full return fuel system and the tuning is a piece of cake as well. I'm sold.

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