74 Spider Intake Question

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Lotus
Posts: 8
Joined: Sat Sep 03, 2016 8:33 pm
Your car is a: 1974 Fiat 124 Sport

74 Spider Intake Question

Postby Lotus » Tue May 02, 2017 4:16 pm

I have a 74 spider with the mechanical choke/mechanical secondary carburetor and I hear that is a decent carb. I have a rebuild kit on the way for it. My question is the intake that is on my car is probably the stock one...would I see an upgrade in performance switching to the 79 single plane intake that I see everyone talking about? I figure now is the time to do it if the carb is off getting rebuilt.

Second, if it is worth swapping out the intake how much should I expect to pay for one? I don't see any on ebay at the moment and have seen them go from 25 to 200 in old ads.

Thanks,
Pait

fiat218
Posts: 5745
Joined: Fri May 16, 2008 5:06 pm
Your car is a: 1969 124 AS spider

Re: 74 Spider Intake Question

Postby fiat218 » Wed May 03, 2017 6:34 am

I'd say 85 to 120 plus the shipping cost
. As I seen them selling for ( 1800 intake )
Jim
East Grand Forks MN
1970 Fiat Spider BS1 ( FOR SALE
1969 124 AS Spider
2017 Abrath
2018 Alfa Romeo 4c Spider

TStark
Posts: 127
Joined: Thu Sep 26, 2013 10:24 am
Your car is a: 1975 Spider
Location: NE CT

Re: 74 Spider Intake Question

Postby TStark » Wed May 03, 2017 8:44 am

Is there confusion? i thought the 79 intake is the dog.

Lotus
Posts: 8
Joined: Sat Sep 03, 2016 8:33 pm
Your car is a: 1974 Fiat 124 Sport

Re: 74 Spider Intake Question

Postby Lotus » Wed May 03, 2017 11:40 am

TStark wrote:Is there confusion? i thought the 79 intake is the dog.


That is what I see mostly but then I see some say single plane 1800 (and I think the 74 is single plane). I thought I saw somewhere but can't find it again though is the 74 single plane has smaller holes though and doesn't flow as well.

User avatar
Sparky
Posts: 114
Joined: Wed Nov 02, 2016 10:53 am
Your car is a: 1978 Fiat 124
Location: Pacific Northwest

Re: 74 Spider Intake Question

Postby Sparky » Wed May 03, 2017 4:54 pm

The '79 was a carbureted 2L, first year of the 2L and last year of the carbs. I'm not sure which intake manifold it used, but I know all my 1800s had the single plane, at least 2 of which are '78s.

I'll post up one of the intakes for sale when I get home from vacation ($100+shipping). I have a second (extra) one with a known working weber 34 carb from IAP on it already, but I may save it as a backup in case I can't get my 40idfs working...

If you're looking for max power or turbocharging, the absolute best manifold I've come across is a Lancia fuel injected deal, but it'll need someone with a British or Australian rhd car or master cylinder relocation to make it work =(
-= 1978 Fiat Spider =-

Fiatlanta
Posts: 184
Joined: Fri Jul 08, 2016 6:00 am
Your car is a: 1979 Spider 124

Re: 74 Spider Intake Question

Postby Fiatlanta » Fri May 05, 2017 7:23 am

If you REALLY want a '79 intake, I have one I just took off...and replaced with an earlier single plane. But I'm pretty sure it's NOT the one you want...it'd laden down with emissions crap that you couldn't use on your '74, even if you really wanted to.

narfire
Posts: 3959
Joined: Sat Dec 27, 2008 2:14 am
Your car is a: 1980 124 spider
Location: Naramata B.C.

Re: 74 Spider Intake Question

Postby narfire » Fri May 05, 2017 11:54 am

I believe most 79 and carb'd 80 intake manifolds end up in the recycle bin or boat anchors. The single plane intakes were a better intake.
80 FI spider
72 work in progress
2017 Golf R ( APR Stg. 1)
2018 F350 crew long box


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