32ADFA Carb on my 2L?

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argonaut
Posts: 66
Joined: Tue Nov 17, 2015 8:32 pm
Your car is a: 1981 Spider 2000
Location: Long Beach, CA

32ADFA Carb on my 2L?

Postby argonaut » Fri Dec 18, 2015 3:14 am

I'm putting together a 2L motor for my 75. 4.5mm dome pistons with a stock 2L FI head and cams. I'm estimating around 9.9:1 static compression based on an old article I found comparing the various block, piston and head combinations. Early 4 bolt flange, 4-2 exhaust manifold and a 79 2-1 downpipe, and I'll be removing the catalytic converter. The intake is from a 77 1.8L. I'll be rebuilding and tuning a factory electronic ignition for the car. And right now I have the 32ADFA carburetor that I have started to rebuild.

My question is, will this motor run okay on the 32ADFA with stock jetting? I figure my other option is to spend a bunch of cash on 32/36DFEV or maybe compromise with a Ford 5200. My intended use for this car is a "spirited" daily driver.

I'm trying not to overspend on the powertrain right now. I still need to dive into the brakes and suspension systems to get the car back on the street. In the future I might consider an upgraded intake camshaft with a larger carb or carbs.
Jason M.

1964 Chevy K20 Suburban
1966 Chevy K20 Pickup
1981 Fiat Spider 2000
1996 Ford Bronco Supercharged
2008 Honda CBR1000RR
2005 Honda RC51
1981 Honda CB750C

vandor
Posts: 3996
Joined: Sat May 23, 2009 1:23 pm
Your car is a: 1971 124 Spider
Location: Texas, USA

Re: 32ADFA Carb on my 2L?

Postby vandor » Fri Dec 18, 2015 9:16 pm

It will run fine with the 32ADFA, but you will be giving up some power compared to a larger carb.
Likely you'll need to go a bit richer on the idle and main jets for optimum performance.
Csaba
'71 124 Spider, much modified
'17 124 Abarth, silver
http://italiancarclub.com/csaba/
Co-owner of the best dang Fiat parts place in town

carl
Posts: 244
Joined: Mon Oct 06, 2008 9:56 am
Your car is a: 1971 128

Re: 32ADFA Carb on my 2L?

Postby carl » Sat Dec 19, 2015 3:36 pm

This is pretty much the same motor I built for my 79 spider. A rebuilt 2L with 4mm pistons but otherwise stock. Early large port 4-2-1 exhaust manifold and stock electronic ignition. The intake at the time I sold the car was a 32 ADF with 1800 intake manifold. The car ran fantastic. I don't recall specs but I'm sure I did some rejetting of the carb. Before I sold the car I had dual 40 IDFs and I was surprised to notice little in the way of lost performance, my butt dyno tends to be less than very accurate.

carl

131
Posts: 672
Joined: Sun Nov 14, 2010 1:13 am
Your car is a: 1982 131 Superbrava warmed 2.0 litre.
Location: Tasmania, Australia

Re: 32ADFA Carb on my 2L?

Postby 131 » Sat Dec 19, 2015 4:24 pm

This is what you want. Same bolt pattern as the ADFA, but 34mm throttle plates and 27/29mm venturies.

http://www.ebay.com.au/itm/RECO-FORD-FA ... SwLVZVyKdJ

http://www.ebay.com.au/itm/ADM-Weber-Re ... SwwbdWGZ0A
Mick.

'82 2litre 131, rally cams, IDFs & headers.

jagonza
Posts: 121
Joined: Mon Feb 01, 2016 12:03 pm
Your car is a: 1977 Fiat 124

Re: 32ADFA Carb on my 2L?

Postby jagonza » Mon Nov 20, 2017 8:04 pm

Your links aren't working for me, what were the carbs were they ?
1977 Fiat 124 - Frankenstein engine
1999 VW Cabrio - Stock
1988 Fiero GT
And a couple of Daily Drivers

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dinghyguy
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Joined: Thu Jul 20, 2017 7:41 pm
Your car is a: 1981 spider
Location: Vancouver, Canada

Re: 32ADFA Carb on my 2L?

Postby dinghyguy » Thu Nov 23, 2017 10:05 pm

Hi,
I have a 32 sdf on my 2L and it seems fine, but then again I haven't compared it with too many other spiders. My question is:
What jet sizes is recommended? I have looked for a while and have not actually found posts actually specifying what jets they have with their cars.

thanks in advance.

dinghyguy
1981 Red Spider "Redbob"
1972 blue Volvo 1800ES "Bob"
1998 Red Ford Ranger


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