Carbureted VS. Fuel Injection

[78KingCobra]

whats the pros and cons to both? which one would be better for the streets? which one would produce more power? is there such thing as non electronic fuel injection? is the right place for such a question?

[White Phoenix]

all injectors need some type of electricity... injectors work on electrical pulse width to determine how long the interval is in which they spray (to match the egnines RPM's). So in theory you need electricity to run any type of them.

[WishIHadACamaro]

Right Here...

Carb Vs FI

[defln67]

{a} pretty good info

[WishIHadACamaro]

carb vs efi. It comes up so often that i just save a link, its been on here quite the many times before but information gets buried on the forums so quickly, especially if this is ones first couple of visits.

After much debate and research I personally am going to go with a carbureted application. The only point that sold me on carbs is the price. EFI kits for Gen I SBCs are not cheap ($2000 outta summit). Personally if i could afford it i would have gone with EFI because of just how much you can control through one little ECM.

[78KingCobra]

oops, sorry. i should have used the search button. thanks for the information though, very helpful.

[The_Dakota_Kid]

I like carb's, they are very easy to tune, once you know how, I currently have been doing mod's to popular carbs, converting Domiantor carbs to be much more friendly on the street 8896 and others.....I like the fuel injected cars for mild-mod street machine's, but they just wont make the power a carb will, not saying the cant make good power, take Edelbrocks Pro Flow EFI as example, a local racer has being working out bugs for 2 years....the have a limited cam profile, and IMO its not a true stand alone fuel injection system, more a match type setup........He has spent thousands, like more than a few, and still isnt right, he finally made the call to put a Indy Intake on it and a 950 HP series carb on and it picked uo 2 tenths, swaped in a bigger cam (hyd roller roughly 230@50 to a solid roller roughly 280@ 50 and went another .15 faster.........so the stuff is either for sale or has been sold.

[whytry]

I'm carbbed, I agree easier to tune for me... But I am also running some of the typical EFI electronics... I have a Wideband 02 sensor so I can keep track of my a/f ratio's... With the Procharger and the Methanol injection I don't want to run any problems along the way, this is a quick way to make sure its running good...

[68AMC]

I Saw A Sticker On A Cuda A Few Years Back That Sums It All Up
"injection Is Nice But Id Rather Be Blown" Lol

[4 cam tbird]

That would be referring to nitrous injection, not fuel injection.

And there is something called mechanical injection, thus the reason you have to specify Efi and not just simply fi because you then could be talking mechanical injection. Mechanical injection is what the old fuelie Vettes and Bel Air's had back in the 50's. A lot of crazy guys out in the sticks put mechanical injection on street machines. I saw a first gen Camaro with running Alcohol with mechanical injection but down over 1100 HP on a dyno at the Car Craft Nats in Sprinfield, MO a couple years back.

Being able to make more power with a carb than FI is complete BS though. A lot of the power difference is intake manifold design. If you put a big throttle body on top of a carbed intake with injectors in the intake runners you would make just as much power with better idle, cold start, etc. You can make an EFI set up controlled by a megasquirt dirt cheap. You don't have to do much searching to find Warren Johnson say he wishes NHRA Pro Stock would switch to fuel injection. He's been quoted in several magazines on several occasions voicing his pro fuel injection opinion. And if you would, please, find me the carburetor on the top of a top fuel or nitro funny car engine.