[MaroonNotchback408]

Carb or fuel injection

state ur reason why.

[93mustank]

Too much to state...go read other articles......

[ReverendDexter]

Depends.

Drag race only - carb. Perfectly tuned for WOT, high-rpm, crap everywhere else.

Anything else - Fuel Injection: more power, more fuel economy, easy/quick tunability (flip of a switch, press of a keystroke), self-tuning for temperature, altitude, etc.

[MaroonNotchback408]

Originally Posted by ReverendDexter Depends. Drag race only - carb. Perfectly tuned for WOT, high-rpm, crap everywhere else. Anything else - Fuel Injection: more power, more fuel economy, easy/quick tunability (flip of a switch, press of a keystroke), self-tuning for temperature, altitude, etc.

hmm ok what is WOT? Do you know if the nascar cars are EFI?

[93hatch]

WOT-wide open throttle

[fakesaleen]

nascar = carbs
with a carb you spend less money on the setup and iits easier to find problems if it wont start or run right, no sensors

[MaroonNotchback408]

I like the whole simpler factor...

[chriswao]

If you know what your doing you can make a carb run just as good as efi street strip every were but if you get some moron to tune it for you then yea it'll only run good a wot

[1slo5.0]

Originally Posted by MaroonNotchback408 Carb or fuel injection state ur reason why.

Fuel injection because its more efficient.

Originally Posted by ReverendDexter Depends. Drag race only - carb. Perfectly tuned for WOT, high-rpm, crap everywhere else. Anything else - Fuel Injection: more power, more fuel economy, easy/quick tunability (flip of a switch, press of a keystroke), self-tuning for temperature, altitude, etc.

Carbs for drag racing are being replaced more and more with EFI. Alot of people have the misconception that carbs are cheaper but that is far from the truth when you get into high end stuff when you are going fast. It is also far from the truth when you are starting with EFI, such as in a Mustang.

Originally Posted by MaroonNotchback408 hmm ok what is WOT? Do you know if the nascar cars are EFI?

Nascar requires a specific carburetor. If the rules allowed, every single cup car would have EFI.

Originally Posted by fakesaleen nascar = carbs with a carb you spend less money on the setup and iits easier to find problems if it wont start or run right, no sensors

Common misconception. Cheaper is not always the case. If you were starting from scratch and didn't have an air/fuel system on the car then sometimes carbureted can be cheaper. If you already have EFI (like in a Mustang) then switching to a carb will never be cheaper. This is assuming we are comparing apples to apples and not comparing used carburetor prices with new EFI prices. Here is an example of one of my cars starting from scratch with no fuel system or anything.

Carbureted:
- CHI Commander 4.0 intake - $750
- Holley Ultra HP 1150 Dominator - $1220
- Magnafuel Pro Star 500 fuel pump - $570
total - $2540

EFI:
- Super Victor EFI intake - $364
- Accufab 90mm throttle body - $269
- Magnafuel 525 EFI fuel pump - $455
- Fuel injectors - $400
- SCT mass air meter - $250

total - $1738

For the EFI set up you also have to figure in a computer system but there are so many options the price varies greatly. You can see that EFI was clearly a cheaper option in this example. I used to think carburetors were the way to go too until I talked to some guys that actually tune shit for a living and they taught me about EFI instead of just throwing opinions out there like you find all over the internet.

[TN.Frank]

Originally Posted by fakesaleen nascar = carbs with a carb you spend less money on the setup and iits easier to find problems if it wont start or run right, no sensors

BIG FAT HAIRY +1. All of the V8's I've owned in the past and many of the 4 cylinders were carb and they worked fine on the street. Up until the mid-80's Carbs were ALL we had for the most part. If I can figure out how to hook my Factory in dash Tach up to a one wire HEI dizzy then I'll still probably go carb. \
It all boils down to who you want in control of you air/fuel mixture, you or a computer. I'd rather be in charge of things because computers can and do fail and sensors do go bad and then you've got all that expense of getting new parts to keep things happy in EFI land. No such problems in Carb land.

[95StangMX]

fuel injection.............why I dont want to smell like gas and neither does anyone who rides with me

[1slo5.0]

Originally Posted by TN.Frank BIG FAT HAIRY +1. All of the V8's I've owned in the past and many of the 4 cylinders were carb and they worked fine on the street. Up until the mid-80's Carbs were ALL we had for the most part. If I can figure out how to hook my Factory in dash Tach up to a one wire HEI dizzy then I'll still probably go carb. It all boils down to who you want in control of you air/fuel mixture, you or a computer. I'd rather be in charge of things because computers can and do fail and sensors do go bad and then you've got all that expense of getting new parts to keep things happy in EFI land. No such problems in Carb land.

No, not exactly true. Although it is true that carburetors were all that we've had for a very long time, that's only because EFI was not mainstream yet. EFI is superior to carburetion and is more efficient, you can not argue that fact. Carburetors do work fine on the street and always have. Nobody will argue with that. You do not have anymore control of your air/fuel mixture with a carburetor than you do with EFI. I don't think you are looking at things logically. You are correct about sensors failing because they do. However a carburetor will have to be rebuilt at least 2 times before a sensor fails....for the most part. As far as carburetors being "easy" to work on, that is because most people don't know a damn thing about carburetors or how they work. They think "carb tuning" is adjusting the idle mixture screws and changing jets. In the hands of a good tuner, EFI is much quicker to tune. As far as carb or EFI being cheaper, it depends on the application. The application I listed above is cheaper EFI and I can give you numerous examples where EFI will be cheaper. I believe we made an example out of EFI being cheaper in your car in another thread.

[TN.Frank]

I don't care how "efficent" or how "great" EFI is, I've had nothing but problems with it. I've never had those kinds of problems or felt so helpless with a carb. I just can't wrap my head around EFI, guess I'm just stupid or old fashion but give me a carb any day of the week. Even though we've got the same name we have very different ideas of what kind of induction we like on our cars. I like Carbs, you like EFI, we'll just have to agree to disagree I guess.

[flattusmaximus78]

Originally Posted by TN.Frank I don't care how "efficent" or how "great" EFI is, I've had nothing but problems with it. I've never had those kinds of problems or felt so helpless with a carb. I just can't wrap my head around EFI, guess I'm just stupid or old fashion but give me a carb any day of the week. Even though we've got the same name we have very different ideas of what kind of induction we like on our cars. I like Carbs, you like EFI, we'll just have to agree to disagree I guess.

Thats cause you drive a fox lol.

[TN.Frank]

LOL, hey, ANY V8 isn't going to get that great of a MPG, so I'd rather go with simple, no sensors, can tune in with a screw driver and a hand full of jets carb rather then a more complicated EFI with all those sensors and a computer. Besides, most carbs are pretty close "as is" for normal daily driving. I've had carbs all of my life, I understand em', I feel comfortable with em'. I guess if I was a younger guy and never messed with carbs then I might feel the same way about EFI but I'm not so for me a Carb is just easier for me.

[chriswao]

O and you wont smell like gas if the carb is tuned right lol

[88Saleen]

this is always such a great argument because both serve a purpose but which one is better? an experiment i would like to do one day when i have money to blow is build two exact same motors from bearings to piston rings, i mean everything. slap a efi system on one and a carb system on another and see which makes the numbers to prove which one is better. i think its more of a preference than which one is better or faster, cuase i have seen a lot of fast carb cars, but i have also seen a lot of fast efi cars. i like efi myself, like you guys have stated i just think its easier and way better tune ability because there are so many more parameters to tune with a efi pigy back system

[1slo5.0]

Originally Posted by TN.Frank I don't care how "efficent" or how "great" EFI is, I've had nothing but problems with it. I've never had those kinds of problems or felt so helpless with a carb. I just can't wrap my head around EFI, guess I'm just stupid or old fashion but give me a carb any day of the week. Even though we've got the same name we have very different ideas of what kind of induction we like on our cars. I like Carbs, you like EFI, we'll just have to agree to disagree I guess.

The problem isn't EFI, the problem is you and your refusal to learn and accept EFI. You are so hateful toward EFI that you refuse to learn it and really it is much simpler than carburetors....on a basic level anyway. What are the two things the majority of people do for carb tuning? Idle mixture and jet changes. Some others know what float level does and how to adjust it two. On a fox body Mustang for example, those 3 basic functions in carb tuning is equal to using a screw driver to change fuel pressure at the regulator. Everything else is done automatically via the computer based on input from various sensors for various conditions.....something a carburetor will never do. Luckily you don't want to really fine tune that carburetor and tear it apart and have a hundred pieces laying on your bench. Then start modifying passages in metering blocks, idle feed restrictions, air bleeds, etc. You will be there for hours making modifications to get the carb to work just right. Then upgrade another performance item (like a different set of heads or intake) and you will be starting this process all over again. Then when you have a poor signal (radical cam) you get to drill holes in throttle plates, etc. to try to get the idle to smooth out. Yeah, carburetors are so much easier... I like carburetors and I like EFI. I love the look of a big Holley Dominator under the hood but I'm not blind to the fact that EFI is superior to carburetion.

[88Saleen]

Originally Posted by Darrell The problem isn't EFI, the problem is you and your refusal to learn and accept EFI. You are so hateful toward EFI that you refuse to learn it and really it is much simpler than carburetors....on a basic level anyway. What are the two things the majority of people do for carb tuning? Idle mixture and jet changes. Some others know what float level does and how to adjust it two. On a fox body Mustang for example, those 3 basic functions in carb tuning is equal to using a screw driver to change fuel pressure at the regulator. Everything else is done automatically via the computer based on input from various sensors for various conditions.....something a carburetor will never do. Luckily you don't want to really fine tune that carburetor and tear it apart and have a hundred pieces laying on your bench. Then start modifying passages in metering blocks, idle feed restrictions, air bleeds, etc. You will be there for hours making modifications to get the carb to work just right. Then upgrade another performance item (like a different set of heads or intake) and you will be starting this process all over again. Then when you have a poor signal (radical cam) you get to drill holes in throttle plates, etc. to try to get the idle to smooth out. Yeah, carburetors are so much easier... I like carburetors and I like EFI. I love the look of a big Holley Dominator under the hood but I'm not blind to the fact that EFI is superior to carburetion.

+1

[grnstang]

darrell that is exactly right i concur