Carburetor Conversion Q's

Topic: Carburetor Conversion Q's (Read 2424 times) previous topic - next topic

Carburetor Conversion Q's

Reply #15 – November 05, 2005, 05:58:42 AM

Yeah you could get better miliage with a carb. Just find a weedwacker(prolly in the weeds in you back yard), slap that carb on there and you will get way better miliage then a EFI. Honestly, if you already have EFI, unless its the 85 year, it dosent make alot of sence to pull it all off and buy new parts, when most of the parts will handle/bolt in mustang ones for cheaper.
Basically they both have their perks. It is easier to get more power with a carb, if you already have one. If you are familiar with them, you will prolly like them better.
With a EFI, everything is already there, and there is no guess work, such as, what cfm carb size should I go with,(although there is the should I run 19lb or 24lb)

EFI is proven time and time again, and so has a carb. EFI is not tuneable, without deep pockets or some tricks. A carb, you can change lots of things. Like hey, my midrange is alittle rich, so you just turn the screw alittle and it is better.

Basically, if you like a carb, go with a carb, if you like EFI, go with EFI. If you dont know, use what is already in the car. I think that we can just leave it at that.

Carburetor Conversion Q's

Reply #16 – November 05, 2005, 09:50:20 AM

After I bought my '83 my dad and I (mostly my dad) changed it over to a carb. I like the carb better. Although I did lose most of the functions in the tripminder since the inline electric fuel pump was removed and replaced with a manual one.

Carburetor Conversion Q's

Reply #17 – November 05, 2005, 11:54:18 AM

FI is too expensive. It is heavier and it can be a pain in the ass to tune. Carb's are easier even if you dont have any experience with them. Heck you can pick up one of those Holley books and it tells you how to tune them for whatever you want to do with the car.

Now Cleven has an 84 Bird. I assume that was throttle body EFI, right? So even if he did add heads and exhaust he is limited by the computer and that py throttle body injection. He would have to do an HO conversion with MASS air. So add up all the he needs and time vs the carb setup and see which one you would choose.

FI you need:
Intake(heavy)
Mass air meter
injectors
computer(may need calibration)
new harness
new fuel pump
aftermarket throttle body(if you didnt want to use the stock one)
new distributor
throttle linkage
HO cam
Roller cam conversion

Carb you need:
Intake
Carb
electric fuel pump
Throttle linkage
fuel lines
convert rear sending unit for carb
MSD distributor with 6AL or use Ford's carb distributor out of yard
Can use stock cam

I may have left some stuff out. Now if he were to put heads on it and lets just say he was using stock HO stuff, he really wouldnt be gaining that much because the potential is there but limited with factory parts. That means he would have to buy aftermarket intakes, injectors, mass air and possibly a throttle body.

Now lets look at carb. Even if he didnt get any heads and just converted to carb, he would make more power by just switching to carb with his stock heads than he would by doing an HO swap. Even then he would have to upgrade everything I mentioned above if he decided to go with aftermarket heads. With carb he can use the same intake and carb if he wants to and still make more power with the carb then that of the FI. All in all carb would be cheaper route and make more HP than that of FI. It has been dyno tested before, NA carb will make more HP and torque than that of FI.

Another simple story. I have a 90 Mustang. Stock except exhaust and 1.7 rockers. Stock mass, TB, intake, heads, cam and so on. My friend converted his 95 GT to carb. Stock heads, cam, Victor Jr., 650dp and exhaust. Both cars are stick. I dyno'd at 207 at the wheels, he put around 230. Just switching to carb, he made more hp. I dont recall his torque but it was more than mine. The next year he added a cam and some Edelbrock heads. He reused his same intake and carb. Rejet the carb and some tuning and he was done. Now FI he would have to change all the FI with aftermarket stuff just to get the most potentional out of his aluminum heads.

James

Autozone Carb

Reply #18 – November 06, 2005, 01:57:51 PM

ok i work at autozone right. They have a holly there i really like but it says on the box "do not use on AOD Transmissions" is it anyway to get it to work or would i have to use anotherone?

Carburetor Conversion Q's

Reply #19 – November 06, 2005, 02:05:37 PM

Quote from: cleven

ok i work at autozone right. They have a holly there i really like but it says on the box "do not use on AOD Transmissions" is it anyway to get it to work or would i have to use anotherone?

you have one with the ford kick down right? yeah it wont work

lokar makes a nice kit complete with cable to make the aod's t-v cable work with a carb.

Carburetor Conversion Q's

Reply #20 – November 06, 2005, 05:16:15 PM

ok now what if i have all the for a efi on my 88 but im having a horrable time tuning it and i may need to go to mass air flow to get it to work if thats my problem.

now i could go carb for about the same cost as i would to go mass air and sell all the i have for my efi or come out close and it would be alot easier. the biggest thing to keep in mine is gas mileage doesnt matter to me everytime im in my bird its all gas all the time:) its fun if i wanted good gas mileage i would drive my tauras i just want a easier way to get my car running and running good.