I'm thinking about putting a new carb on my car, (83 12A), i have nothing but the stock port, so what would be a good carb to get. What would be best "bang" for the buck, with out having to port the car.

 

Mikuni 44PHH?

 

Have you done the exhaust yet? If so, give Carl or Sterling a holler.

 

well I am running a weber 45, it seems to be a good setup once you get it tuned right. (but it is a pain in the *** to get it tuned good)

You have to remember there is some stuff you will need to do to run an aftermarket carb. First you should do the exhaust of your vehicle (racing beat), then you will need a fuel pump and fuel pressure regulator (I have the cheap Carter pump and the holley 1-4 psi FPR from summitracing.com). Then you are going to need the carb and the intake manifold to mate it up to your 12a. Honestly I would suggest looking at Rotaryshack.com, he can help you get started with the carb, manifold and Robert will also help you out with the jetting which can be a pain.

Good luck, it is worth it once you get the carb tuned, but I found out that my car turned into a whole new monster once I changed the carb. Remember though don't expect any sort of good fuel economy with a aftermarket carb...

 

How are you going to be using the car. That is the first question you need to ask yourself.
Are you looking for Daily driver, Street Preformance, Track?????
Then ask, How much do I want to mess with it? (Tuning)
Then ask how much you wanna spend, is it easy to find parts for this model etc..
I know I anwsered your question with questions, but when you awnser these we will be able to help you better.

Trust me I know!!


Edit: Man Everyone posted at once!

 

I think we have a new record, 4 posts in 2 minutes!

^^^ but I do agree, you choice of carb should reflect what you want to do with the car.

 

street/track, less work the better but i can handle a fair bit, little as posible $$,

 

Well I would suggest, a Weber or a Sterling Carb.

I have a dellorto(kinda like a weber, but hopefully better!) I havent put it on yet, but I already know that parts are a little hard to get ahold of and are not cheap!!!!

So those would be your best bets, Like Dan said you will have to upgrade your fuel set up With a new fuel pump and a FPR. And if your trying to get more power from bolt on, an exhaust and ignition upgrade are a MUST!!


Dan: I just ordered the same set up you have today!! I thought it was pretty good set up, but I noticed you called it cheap why?

 

By saying cheap I just meant that it is the cheapest Carter fuel pump you can get from summitracing. It seems to work good, loud, but good. I am not 100% sure as to how good the regulator is working, because I made the mistake of buying a 0-15 PSI summit FP gauge, and the thing gives the worst readings ever. One piece of advice, get a good pressure gauge after your regulator...

But all in all it seems like a solid setup if you can ignore the growling noise coming from behind the drivers side bin.

Heres the link for the Carter pump: http://store.summitracing.com/partde...5&autoview=sku

For my fuel system I ran the carter pump, holley FPR, summit gauge and another inline fuel filter in the engine bay and it cost just over $100. (just for reference)

 

Wait is it really that loud!! Thats so not cool! I wasnt to be able to hear my engine not whats feeding it!! lol

Is this the FPR you got also
http://store.summitracing.com/defaul...5&autoview=sku

 

well I have heard of people cutting appart rubber boots in order to make it quieter, also im sure dynomat or some sort of good sound deadener on the inside would help out. I really didn't try to mess around with quieting it down once I got it in... But one thing I did was I wired the pump to a switch so I could turn it on and off when I want to, and to ensure that it was getting enough power. (stock pump wire is restrictive)

 

Yea I planned on running new wire to it, But why put in a switch?

 

Not only can you then leave the fuel pump off when you crank the motor (to unflood it). you can also allow the pressure to build up before trying to start the vehilce. What I do is let the pressure build in the lines for about 5 seconds, then pump the gas 3-4 times and then turn the motor over. Basically develop your own starting procedure, but it does really help when you want to just unflood your motor.

 

Oh ok. I was just wondering. It also could be used as an any theft device. They might be able to start it but wont get to far.

Back tot he subject of the carb now.

If you decide to go with a weber, you then must decide if you wanna go IDA, which is the carb vertical to the engine, or sidedraft with the carb sideways on top of the engine.

It is said that the IDA gives more you top end power while the Sidedraft gives you more low end power.

 

mine is over kill in prep for efi, got a 4gallon swirl tank a holley red tank pump with another after the tank, half inch steel lines all the way, carter fpr and on start up man what a sound like a chordless drill going off guts. all for a std carb, all in aid of efi- which i would suggest is the better fuel delivery system.

 

1/2inch steel? yeah, overkill is an understatement

 

the pump i'm using is a 6psi Facet, i think it's from RB, and no fpr. the only time u hear it is when it's not pumping fuel. comes in handy when ur guage quits working. when u start hearing that pump, it's time to hit the next gas station. i've heard those holley pumps and they're loud too.