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Somebeach
Somebeach New Reader
4/9/18 8:20 p.m.

Like the title says. I am browsing between a 70s corolla or a fox chassis. (Odd mix I know). I keep seeing mustangs that from the year should be fuel injected, but in pics/descriptions are actually carb cars......

 

why do do people do this?

rslifkin
rslifkin SuperDork
4/9/18 8:22 p.m.

Because lots of hotrodders are stuck in their ways and either think fuel injection is "emissions crap" that should be removed for a "proper carb".  Or they know how to tune a carb and stubbornly refuse to learn anything new. 

Ian F
Ian F MegaDork
4/9/18 8:23 p.m.

Because the typical Mustang owner is a caveman. 

cheeky

(runs and hides)

Stefan
Stefan GRM+ Memberand MegaDork
4/9/18 8:24 p.m.

Yep, pretty much.

NOHOME
NOHOME UltimaDork
4/9/18 8:33 p.m.

Because by now most of the factory stuff is trashed electrically and mechanically by multiple owners and it will cost more to set right than converting to a carb.  And the factory stuff is a PITA since if you want to do much on the engine the intake has to come off.

You cant do much by the way of engine mods to a 302 before the computer E36 M3s the bed.

 

Looks like merde  compared to a carb.

 

At least those are the reasons I went with a Fitech.

 

Pete

Jumper K Balls
Jumper K Balls PowerDork
4/9/18 8:38 p.m.

 

For a long time the cost of a replacement one wire oxygen sensor was about equal to the cost of an edelbrock manifold and carb combo. The oxs light in my 81 jetta came on in 92 and I remember panicking at the thought of a $350 sensor

I also remember about that time a junkyard ecu was at least that much if not closer to 500 for most cars. 

But also folks think they make superior power. To this day I still hear stories about yanking the injection off a corvette and running 10's with a "750 double pumper" Why is it always a double pumper? Every outlandish claim about automotive domination seems to include a berking double pumper. 

 

MotorsportsGordon
MotorsportsGordon Reader
4/9/18 8:42 p.m.

The double pumper carbs were the typical 4 barrel race and top high performance oem 4 barrel carb. The Holley 850double pumper is what was used in NASCAR ford 427,427 gt40,chev l88 and zl1 427 for example.

MotorsportsGordon
MotorsportsGordon Reader
4/9/18 8:47 p.m.

Plus early oem fuel injection systems are not much for performance etc either. And finding parts for some of them can be difficult aswell. Sure you could go with an aftermarket injection or tbi injection but you can make big power with carbs aswell.

ClemSparks
ClemSparks PowerDork
4/9/18 9:02 p.m.

First off, it was hard to find an unmolested fox body 25 years ago.  I'm not exaggerating...25 years ago I was frustrated when trying to find a stock one.  It has only gotten worse, of course.

Having not owned a fuel injected fox body, I can't answer for the reasons but I get it.

Who has the electronic tools to diagnose and facilitate repair of the fuel injected 5.0s? (that's a genuine question...I don't even know what is required).  I expect it's not that difficult for the guys who have it figured out...but that system is several generations old by now.

I work with customers all day who are techs.  An '80s/'90s fuel injection system would NOT be a welcome site to most of them.  It might as well be a carburetor.  

Carburetors, on the other hand, are still being cranked out by the aftermarket hotrod companies.  The same stuff that's been working for a LONG time can still be purchased today, slapped on the car, and run...pretty good.

Ransom
Ransom GRM+ Memberand PowerDork
4/9/18 9:11 p.m.

Don't ask me. I'm pulling the Edelbrock carb off this here 302 to put Fox-era EFI on it.

I was going to Megasquirt, but picked up an '86 computer at the swap meet for $10 on Friday.

I may still just Megasquirt. But the application definitely puts a higher premium on reliability and driveability than performance. I'm actually not sure which is more reliable between a new MS and a 32-year-old OEM ECU when you count in getting cold start nailed, etc, etc... I know it can be done well, but I'm not sure I'll have it all nailed for all seasons when I want to hand the car off.

I can tell you this: I have no doubt I can get cold start and run better on an MS than with a carb.

EastCoastMojo
EastCoastMojo GRM+ Memberand Mod Squad
4/9/18 9:19 p.m.

Come on, who doesn't like to say double pumper?

 

Heh heh, heh heh. 

 

Double pumper.

ClemSparks
ClemSparks PowerDork
4/9/18 9:27 p.m.
Ransom said:

Don't ask me. I'm pulling the Edelbrock carb off this here 302 to put Fox-era EFI on it.

I'm on the lookout for a performer RPM for my Fairmont Wagon project.  Just sayin' ;) 

freetors
freetors Reader
4/9/18 9:34 p.m.

There have been many tests over the years that have proved carburetors can produce just as much power as fuel injection. I would be perfectly happy having carburetors installed on a project car or build. That said, I'd also be happy with a good tuneable fuel injection system. It really just depends on the project and what the goals are or the experience you want to have with the car.

If I had to choose between a carburetor or a worn out, old, non-tuneable FI system I would definitely take the former! And I think that's where a lot of people that the OP is talking about are at.

ebonyandivory
ebonyandivory UberDork
4/9/18 9:35 p.m.

Because Roadkill.

Ransom
Ransom GRM+ Memberand PowerDork
4/9/18 9:35 p.m.

In reply to ClemSparks :

Unfortunately, I think it's just a stock manifold or I'd start looking into shipping...

Ranger50
Ranger50 UltimaDork
4/9/18 10:46 p.m.

Don’t even get me started on this subject.... grrrrrrr

Trackmouse
Trackmouse UltraDork
4/9/18 10:46 p.m.

Duuuuuuuude!!!!1!!!! 70’s Corolla! It’s a no brainer! Fox body ain’t got the body of a Fox...

Appleseed
Appleseed MegaDork
4/9/18 11:58 p.m.

Because a carburetor isn't laced with 30 year old brittle wires and plugs.

MotorsportsGordon
MotorsportsGordon Reader
4/10/18 12:04 a.m.

And lots of 911 owners went this route aswell scraping the old cis fuel injection for Weber carbs.

Stefan
Stefan GRM+ Memberand MegaDork
4/10/18 12:34 a.m.
MotorsportsGordon said:

And lots of 911 owners went this route aswell scraping the old cis fuel injection for Weber carbs.

CIS, is a terrible solution for high-pressure carburation.

Given the aftermarket options available now and the knowledge of those older systems, it’s still amazing to me that carbs are still used.

ebonyandivory
ebonyandivory UberDork
4/10/18 1:58 a.m.

Some people like to cook over charcoal and not propane.

Some people like to shift their own gears.

Some people actually CALL their friends and family on the phone or even (omg) go visit.

Some people like to do their own lawn care.

So what?

pres589
pres589 PowerDork
4/10/18 3:30 a.m.

Another angle is how the best flowing factory 5.0 efi intake was installed on the last 5.0 Explorers. These things are done before 5,000 RPM. 80's versions are worse. None of them are that light. The easy button to make more power is a carb intake. And then you don't have to hack a factory ECU to tune it. 

Hungary Bill
Hungary Bill GRM+ Memberand PowerDork
4/10/18 3:49 a.m.

In reply to EastCoastMojo and Jumber K Balls:

It's not just the fish stories.  Everything's a double pumper these days.  See:  Exhibit A

 

 

tester
tester New Reader
4/10/18 5:12 a.m.

In reply to Hungary Bill :

I guess I can see the worn out harness angle but really all of that is replaceable. Painless wiring and various other companies sell harnesses.  People made plenty of power with a stock AL9 box and a chip, a Tweecer, or a modified mass air sensor back in the day. This is not witch craft. 

Mostly people are simply ignorant. 

I have a handheld  OBDI/II scanner with the connector for Ford, GM, etc. You can probably get an adapter for the Torque app or similar these days.  There are also  little standalone boxes for OBDI. Again, this is not hard. 

 

The last FOX that I owned was a1992 model over 10 years ago. It had over 200k miles on it at that point. Any of these cars that are actually driven are nearing 300k at this point in their life. They are on their nth owner, usually a kid with little knowledge or funds. From that point of view just getting the engine rebuilt and running is probably breaking the bank. 

akylekoz
akylekoz HalfDork
4/10/18 5:25 a.m.

After building a 5.0, I could have Coyote swapped  mine for about the same cost.  I just don't have the time for that E36 M3, next round though.  My 92 is and will always run the stock injection.

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