Fiat 124/2000 Carburetors, Intake, Linkage

My dear Fiat lovers. Especially those with carburated cars. I'm going to give you some advice. There is only one carb to run on a Fiat 124/2000 Spider. That isa Weber DGV/DGAV Progressive two barrel carb. Reason, this carb is one of the simplest Weber made to tune and rebuild. This carb will fit on all Fiat intake manifolds and will enhance the performance as well as the gas mileage beyond all of the others that you see installed on these sweet little ponies.
There are a lot of people out there who are trying to figure out how to make this carb workon the Fiat because of the way the throttle body opens. Well, there's no linkage out there, or at least no one has offered it to you, to make such a carb work on your Spider. But believe me, there is and it is simple and it works fantastic and I have got it.
Now then, as to a Weber DGV, this model is a manual choke model. The weber DGAV is an automatic choke, which is run electrically off of your plus side of your coil, upon the opening of your ignition. That's really the model you want to run because you don't have to deal with an additional cable geing lose, sticking, or you forgetting to release the cable to open the choke butterflies. So then, as I said, DGV is the way you want to go. There is another model of Weber known as the DFV/DFAV. This model Weber is what most people are looking for now to worek with the linkage that was produced for the 1979 early 1980 2L carbed engine. The reason people are looking for this carb is because the way in which the throttle opens, towards the spark plugs or the center of the engine. They use the ridiculous linkage system that is fixed to, or apart of, the valve cover which has a cable going to a piece of hardware that goes to a bar that goes to a carb, and it is just a cluster you-know-what. It's a good carb, it's the same as the DGV, just backwards. Or as most people would say, the DGV is backwards. Anyhow, if you really want to get to the very bottom of it, get yourself a DGAV carb. Get yourself the linkage that is available, get away from the 79-80 linkage, place that carb on the intake manifold, turn your mixture jet gepletely in until it stops, gee out 2.5 turns, fire the car up.
Now, understand something. On this carb, there is one vac port. That port would go to your vac advance on your distributor. If you don't have a vac advance, cap the vac port on the carb. As I said, 2.5 turns should be right. Give yourself some gas at the carb. If it snaps or pops or spits at you, turn it out half a turn more and see how it works.
Remember, also always use an inline fuel filter prior to the gas going into the inlet port of the carb. Use one that you can see through so that you know when it is dirty. Once it is, replace it. Make sure that the hoses that go to your carb are secure. Check the nipple geing from the carb and make sure it is not loose. You can find air cleaners which are triangular with 360 degrees of air intake online all the time. Use one, it'll help you out. Make sure you buy the one that will have the breather connection underneath it so that you're pulling the biproduct of your lower engine back in through your carb.
Now then, that's the only carb you want to run. You'll be happy as can be, quick as can be, and as efficient as can be.
Intakes: Let's talk intakes. There are many different intakes that were used on Fiat engines. 1608 was a great intake. Short passages, quick flow, great intake. Matter of fact, they should never have stopped making that intake, but time tells all sad stories. You can run that 1608 intake on a 2L engine with no problem. Matter of fact, if you have a 2L that is carbed, and you know as well as I do, that is one of the biggest cluster you-know-whats that has ever been produced by Fiat. Thank you United States of America DOT. THere are more vac lines on that intake than there is pipes running through your house. Anyhow, back to intakes. The 1800 intake is also a good intake to use because it also has very good run to it. The gases flow great to it, they just used a lousy carb on it. And there's a lot of junk that is adapted to it for a lot of electricals. They can all be removed and they can all be sealed if you know where to go to buy the plugs. It's a good intake manifold.
These are the only two intake manifolds we use. The intake manifolds as I referred to on the 79-80 carbed, I take and throw to the aluminum man that gees around because they're the pits. Not only that, but if you have to change your starter for any reason, good luck! Or if you're running a manual fuel pump and it should take a crap on you, good luck! So with it, what you really want to do is get away from any and all 2L intake manifolds. That's that.
Last but not least, linkage. As I said previously, you Fiat owners who are trying to upgrade your carb, are frantically looking for some sort of linkage on the carb that you're planning on introducing to your intake manifold. And once again, as I said, many are looking for the linkage that ran on the 79-80 2L engines. And like I'm going to say again, get rid of that garbage. Remember, the least amount of moving parts, the better things work. So in the case of linkage, you really want to get yourself a hold of the setup that Daytona Spyder offers. It's the best! It works great! It's one cable! No bars, no pins, no brackets that pop off, none of that stuff! It's just one clean smooth pull and you're home free. This is for all you out there, I'm not trying to sell you anything, I've been down this road, I discovered what works, and believe me, try it and you will love it.
David.
P.S. You performance guys who are looking to upgrade from a single progressive 2 barrel carb to twin 40 IDF Webers, look out! Because there is a gepany known as Pierce Manifolds. I love 'em, they're great. They make a nice intake manifold for twin IDF downdrafts. I buy from them, and will continue to buy not only their intake manifolds, but the linkage that gees along with them or has to be bought separately. Now the problem is, the linkage doesn't work. You put it on and the throttle butterflies will not open gepletely. You're trying to hook up that 79-80 carb linkage and it is just not working right. Don't worry my little Italian olives, rescue time. I love Pierce Manifolds and their linkage is good, but you have to make changes in order for it to work. And if you do not have the early model 40 IDFs that were made for Fiat, you're out there buying, most likely, the 40 IDFs that are set up for Porsche. You're trying to adapt these to the top of that intake manifold and you're having a problem fitting both carbs on the intake because of the throttle shaft. I can tell you, and I'm going to tell you, how to take care of all of that. Simple as ABC.
First, don't plan on using the 79-80 linkage. Won't work. Just won't work, trust me, it will not work. Second, as far as these 40 IDF Webers you're buying, be very concerned, not about anything more than where they meet each other at the center of the intake manifold. This is the area you have to address more than anything else. If you did buy your intake manifold and carb linkage, or at least throttle linkage setup from Pierce, you'll want to install the sync setup in the center between the two carbs. You're going to have to go to a shop that has abench sander, which has a circular disc also with it. Placeyour sync linkage on with your nut lock down washer and your nut. Once you do that and it is tight, take and sand the throttle shaft to meet flush with the locking nut. If you do that on both carbs where they meet in the middle, you'll be able to place them on the intake manifold. Bingo!That's it. Now, you're going to ask me "Well, wait a minute, where doI go as far as hooking up my linkage to make this car run?" Well, through the course of the past 15 years of racing, we've developed a very unique linkage setup for the 40 IDF downdraft carbs. As I said earlier in this guide as to the linkageyou should use for the DGV, I impress upon you to invest in the linkage we've designed for this particular style of carb. Which once again is so simple, you won't believe it. You can set your carbs up ready to go once you've taken care of the center section with the sync within 5 minutes. Now, I know you have a big question.So just how do I open up my carbs? How do they open up? Because of they don't pull from the center, then where do they pull from? Well, Daytona Spyder, as I said, has gee up with a very unique linkage that will pull from the throttle shaft of the carb closest to the firewall. In other words, you're pulling from the very extreme right if you're looking straight down at the carbs from thedirver side front fender. One cable, one unique linkage setup and bingo, there you go. It's a piece of cake and as smooth as can be. It's just one pull and you're home free. Not only that, but most people who are using this setup are mechanics who are saying "Where is the linkage?" That's how clean it is. You don't have the crap on top of the valve cover, you don't have the problem with trying to bend the bar to get down to open up the linkage partially. You don't have all that crap. you just have one nice clean setup that works like a dream! Check it out, man, you'll love it. Anyhow, it's time to go home. Tomorrow's another day, and to all of my little olive buddies out there, love ya, mean it, and wish you and your baby well.
Daytona Spyder is the only source that I know of at this time to offer such linkage. And once again was designed through racing. With that in mind, you don't have to search the world over for a waffle intake manifold, 1608 bar linkage, 2L crap linkage, or try to figure out your own setup to try to make these carbs work right. Daytona Spyder has it. This guide is put together for all of you out there, both those who want to run efficient and have performance at the same time, and those out there who want to upgrade to a truly higher performance range, and not to sell parts. But with all due respect to the others, Daytona Spyder has the linkage systems covered.
Hope this reaches you with understanding. If so, leave a 'yes'. If not, leave a 'no.' But most of all, enjoy your baby and get the best out of it that you can. David.