Holley 5200? Anyone use one?

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whitehause
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Holley 5200? Anyone use one?

Post by whitehause » Fri Oct 12, 2018 2:22 pm

Hello all, new to the forum and have a question on if anyone has used a Holley 5200 on their Fiat 2L? I've had a 79 for 15 years and am tearing it down to do a full rebuild. As everyone says, the 79 had one of the worst carb/manifold combo's, just curious if anyone's gone this route
Thanks!
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scrapironchef
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Re: Holley 5200? Anyone use one?

Post by scrapironchef » Fri Oct 12, 2018 2:57 pm

I'm sure Brad will pop in here but his usual recommendation is to swap out the intake manifold to the 1800 one and put an ADFA Weber on. That's what I'm doing to my 79.

In a more reasonable emissions environment I'd be bolting this on - https://www.holley.com/products/fuel_sy ... s/550-849K
Larry N.

79 Blue Spider
fp55scca
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Re: Holley 5200? Anyone use one?

Post by fp55scca » Fri Oct 12, 2018 3:52 pm

--Hi Tim. Welcome to Mirafiori. If I remember correctly, Denise Burschette used to run this carb on her '72 1608cc Spider. Her husband Ron mounted it for her. I don't think Denise frequents Mirafiori so much these days. But you might find her on facebook.

--In any case, the Holley 5200 is a good carb, as it was licensed from Weber, and based on a Weber 32/36 carburetor. If you are considering the Holley 5200, you might want to just go with a Weber 32/36. In either case, for a '79 Spider, you will really need to change the intake manifold anyway, as the stock '79 manifold is useless. The Holley 5200 and the Weber 32/36 will both bolt directly to the 1.8L Fiat 124 Spider manifold.
Jim Scurria
Norfolk, VA

1972 Fiat 124 Spider
1971 Spider - SCCA FP-24
1974 Fiat 124 Spider
whitehause
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Re: Holley 5200? Anyone use one?

Post by whitehause » Fri Oct 12, 2018 6:07 pm

Thanks for the responses! Yep, the manifolds getting scrapped along with the original carb, emissions, full engine rebuild. The wife and I just putted around in it for a few years, then it sat for a few more while I finished my 68 Corvette project so I never really worried about changing anything. BUT NOW that the Vette's done, I'm ripping it apart. The bonus is I got all sorts of new tools while doing the Vett. Mig, Tig, stick welders, engine hoists and a ton of other tools. Living just outside Reading PA, I'm 15 mins away from the Duyrea and Pagota Hillclimbs, so I'm thinking SCCA with it. Roll cage, improved motor, suspension, chassis stiffening (which the cage should provide most of ) Pretty much everything, so I will probably be a frequent poster.... :D I almost hate to do it cause it automatic, with A/C, and a removable hard top, which will be used and all the soft top hardware removed to reduce weight.
Last edited by whitehause on Fri Oct 12, 2018 6:26 pm, edited 1 time in total.
whitehause
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Re: Holley 5200? Anyone use one?

Post by whitehause » Fri Oct 12, 2018 6:09 pm

scrapironchef wrote:
Fri Oct 12, 2018 2:57 pm
I'm sure Brad will pop in here but his usual recommendation is to swap out the intake manifold to the 1800 one and put an ADFA Weber on. That's what I'm doing to my 79.

In a more reasonable emissions environment I'd be bolting this on - https://www.holley.com/products/fuel_sy ... s/550-849K
Yea, my wife's not going to like that I opened that link.....I have so many summit receipts I could heat the house for a year if I burned em in the fireplace....lol
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scrapironchef
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Re: Holley 5200? Anyone use one?

Post by scrapironchef » Fri Oct 12, 2018 6:38 pm

whitehause wrote:
Fri Oct 12, 2018 6:09 pm

Yea, my wife's not going to like that I opened that link.....I have so many summit receipts I could heat the house for a year if I burned em in the fireplace....lol
Just explain that the better gas mileage will pay for it...
Larry N.

79 Blue Spider
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Re: Holley 5200? Anyone use one?

Post by MikeGreer » Fri Oct 12, 2018 10:27 pm

I don't know if there is any advantage to the 5200 over a Weber 32/36. I have a 32/36 DFEV on my '79 spider. It's mounted to a single plane manifold and there are a number of other modifications including valves, cam, high compression pistons, ceramic coated header. Oh what a difference these mods make to a stock '79 spider.
45 years with a spider, that's a long time
Restoring the '79 for the second time, you're never finished ;)
whitehause
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Re: Holley 5200? Anyone use one?

Post by whitehause » Sat Oct 13, 2018 8:51 am

Not really looking for an advantage, just have a line on a couple 5200's. Was looking to see if there's any big issues to overcome mounting it to a Fiat single plane manifold.
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davedecker4
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Re: Holley 5200? Anyone use one?

Post by davedecker4 » Sat Oct 13, 2018 12:16 pm

I'm not sure...but I do still have these if that is something that would help:

<https://www.mirafiori.com/forum/viewtop ... 15&t=97338>
Dave Decker
a 'couple' Fiats and Lancia's
whitehause
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Re: Holley 5200? Anyone use one?

Post by whitehause » Sat Oct 13, 2018 3:26 pm

davedecker4 wrote:
Sat Oct 13, 2018 12:16 pm
I'm not sure...but I do still have these if that is something that would help:

<https://www.mirafiori.com/forum/viewtop ... 15&t=97338>
Are you looking to sell one of them? I need to do a little more research, but I may be interested in the cleaner one that has 26 27 on the bores. I'm in the north east US, so depending are where you are, shipping cost might make it prohibitive.
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