WEBER 32 ADF 14 Carb and Abarth Inlet Manifold

[ch33kster]

Hi Guys,

I have a 1969 AS Spider with the 1438cc engine. I have the original Weber Carb fitted, Im afraid I cant remember
the model.

The car runs very rich and pushes out heavy fumes on changing gear. I had serviced the carb and replaced all the appropriate parts when I rebuilt thye engine.I have adjusted the Idle to try and get the best out of the car before it stalls.

I had read that by upgrading the carb to a 32 ADF, the car would run better and be more economical. I had also read that I would need to upgrade to an 1800 inlet manifold.

I brought a Weber 32 ADF 14 Carb last Autumn off Ebay. I rebuilt it and serviced it with the correct gasket set and new jets. Its now as good as new.

I recently bought an Abarth inlet Manifold off a 125 Strada that would fit a Twin cam / Lancia etc. but I have a feeling that it may be off a 2000cc vehicle. I havn't tried to fit it yet until I got feedback from you knowledgable guys out there.

I need to know if I will gain better performance and a more economical drive? and will the 32 ADF 14 Carb fit the Abarth Inlet Manifold onto my engine without any problems???

Help as always appreciated,

Cheers, Charles

[So Cal Mark]

I'd like to see a picture of that intake manifold

[stefhahn]

Charles,

if this is the manifold:



then it should not be a problem - a fellow 124 AS (1967) owner in Portugal is using this one on his 1400, see http://fiat124sport.livejournal.com/?skip=15

ciao,
Stefan

[ch33kster]

Stefan, that is the same as the inlet manifold I've just bought... have you been spying on me?

Now for the next set of (stupid) questions:

Is it self explanatory as to what pipe goes where when fitting?
Do I need to be advised on anything in particular?
Should it make my "Little Blue" more economical and smoother?
Will I still be able to fit my original air filter to it???

I know I ask for a lot.

Guys, you are always prompt and still the best!

PS: Stefan, funny thing is, even been looking for your friends website for quite sometime
now but couldn't remember it. A great journal!

[lanciahf]

Sorry but a manifold from a ritmo/strada 125 will not fit a ADF series carb. The manifold will fit a TC head but the carb opening is for a DATRA/DAT series carb like the ones the Lancia Beta has.

[ch33kster]

The text that runs along side the Picture on the 124 Journal (which is excellent) mentions the following:

"The intake ports have already been carefully matched and blended to the maximum intake runner opening as described by the intake gaskets. Since the 1608 head's ports are a perfect match for the gasket too, all I have to do now is get it on. I hope this will not force me to lift the head, but knowing the 1438 as I do I'm afraid that this might end up being required due to my insistence in keeping the two top mountings of the intake being effected via studs instead of bolts...

I do have to make this swap, though, the damn vacuum port for the servo is driving me nuts..."

I don't fully understand what he has written in regards to the "damn vacum port"??? I have emailed the website but haven't had a reply. Does anybody know if they are a member of this forum??? What extra work will i need to carry out ie in blending?

Lanciaf thank you for your response but I trust this Guys journal but sadly he doesn't explain anything else about this upgrade. All information that I receive is always useful.

[stefhahn]

Charles,
from what I understood between the lines he had problems with the original intake manifold he used before. But to uncover this secret: why don't you just send him an email?
Another question I have for you: why did you get a 32ADF? The original 1438 (at least in Europe) was a 34DHS10 - a brillant carb with bigger barrels - so better performance of the engine - which would be a perfect fit for your intake manifold.
ciao,
Stefan

[ch33kster]

My original carb is a stock 26/34 DHSA Weber which has been on since day one.
I emailed the Journal guy but I haven't had a response yet.

I've just found the web page that mentions why to upgrade it also answers a
lot of my prev. questions : http://www.mirafiori.com/~corey/How-To/Carb.htm
Written by non other than bradartigue! A really useful page and very informative.

One of the only "cons" mentioned is this:
"If you intend to use the ADFA on a pre-1975 model year car, you will have to install the heater pipe
(runs under the exhaust manifold) from a 1975+ model year Fiat 124."

How hard is this to do on a 1969 AS 1438cc? Will I need another water pump??