30 Pict-1 75-1 Base vs 30 Pict-1 105-1 Base ..Worth the upgrade?

[VW Addict]

I have a 1967 Beetle. Currently running a AK 1600cc Single Port engine. I have a 30 Pict-1 75-1 Base installed. The correct carburetor for my car is a 20 Pict -1 with a 105-1 Bade (with the power circuit)
I am having a few small issues with my current carb and looking into replace it.
My question is, should I spend the extra for a 105-1 base with the power circuit, or is it worth it? Anyone use one, notice any differences...etc? Thank you!

[Jody '71]

The 30-1 carb I have has a 75 base but it has the power circuit on top. I think there's a way to modify the 75 base so it works properly with the power circuit
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'66 Beetle
2011 Hyundai Elantra Touring

[tasb]

The 30 PICT 1 tops are interchangeable. If you are running an 009 or some other mechanical only distributor I don't think you'll notice any difference. Iff you are running a vacuum advance distributor you will need to match it to your carburetor.
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Roads Scholar &
1957 Kombi low mileage 36 hp governor equipped M 178 Slow Drag Winner 2014, 2015, 2018

1965 hardtop Deluxe Microbus owned since 1990 M 620 factory 12 v 1500cc

1961 (October)Single Cab- Road Trip Workhorse

[glutamodo]

Yes, I've said it many times, the bases should be already set up for the power fuel system. All it needs is a clear channel as shown here:

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Andy T.


IMAGE NOTE: It has been noted that Chrome based browsers may have issues in displaying my vast image library, which use non-secure links and are on an FTP server. Images should still be viewable if the link is clicked though.
I do not know how to fix this. All I can say is it all works fine for me with what I use, Firefox.

[VW Addict]

I am running a 009.
Big question... can anyone tell me if they ever tested any difference between running a engine with the 75-1 and running an engine with the 105-1 power circuit?
I don't notice any problems with my Bug getting uphills right now, but supposedly others have told me the 105-1 is the carb I need.

[glutamodo]

Uh, yes, I have experienced it when the power fuel system got bunged up and it certainly led to a lower amount of wide open throttle power.

And that reflects a service book note that VW made during the 28PICT-1 era regarding a certain series of carburetors that might have issues:

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Andy T.


IMAGE NOTE: It has been noted that Chrome based browsers may have issues in displaying my vast image library, which use non-secure links and are on an FTP server. Images should still be viewable if the link is clicked though.
I do not know how to fix this. All I can say is it all works fine for me with what I use, Firefox.

[VW Addict]

[jerry montano]

Does anyone have a picture of the upper half with the power jet circuit? I’m trying to find out if my upper half has it. My base is the vw 105-1. Thanks.
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69' Westy
73’ Adventure Wagen Hightop
81’ Westy

[Sharp64]

http://1967beetle.com/30-pict-1-carburetors/
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1960 Indigo Blue Ragtop (Blue Barry)
1967 Ghia
1985 Westy Money Pit
“...some men aren't looking for anything logical, like money. They can't be bought, bullied, reasoned, or negotiated with. Some men just want to watch the world burn.” - Michael Caine

[daven]

Is there a performance difference between 105's, 75's and 78's? I figure the numbers reflect what vehicles they were put in? I have all three and each has a power circuit so is there really a difference? Want to keep the best performer for my 67.
I've noticed that the power circuit tops have an arm that screws into the top to mount the return spring on (and the top has a corresponding mounting point).

[jerry montano]

[Sharp64]