TheSamba.com :: View topic

Thu Jun 13, 2019 4:53 am

I do have plans of installing some dual carbs to my stock 1600 engine

Actually I do have a Solex 34 Pict 3 (which works fine) but would like to install some duals

Which one do you think would be a better option? Pros and Cons?

Would Solex HD40/44 be a better option? Webers? Dellortos?

Thu Jun 13, 2019 5:55 pm

https://www.thesamba.com/vw/forum/viewtopic.php?t=572107

Thu Jun 13, 2019 6:17 pm

36 Dell's hands down, you won't be disappointed.

Fri Jun 14, 2019 7:31 pm

mcdragracer wrote: 36 Dell's hands down, you won't be disappointed.

I’m pretty sure he means baby Dellorto 34s and Weber 34 ict.

Last time I purchased used carbs I ended up putting more money into them in the end to get them going than it would have cost for a new set.

Fri Jun 14, 2019 7:42 pm

I like the baby dells more than the weber ict, but parts are much harder to find, and they cost more.

Fri Jun 14, 2019 8:48 pm

ekacpuc wrote: mcdragracer wrote: 36 Dell's hands down, you won't be disappointed.

I’m pretty sure he means baby Dellorto 34s and Weber 34 ict.

Last time I purchased used carbs I ended up putting more money into them in the end to get them going than it would have cost for a new set.

No, he probably meant 36 Dells. With 28 vents and proper jets, 36 Dells are superb on a 1600dp

H2OSB

Fri Jun 14, 2019 11:05 pm

H2OSB wrote: ekacpuc wrote: mcdragracer wrote: 36 Dell's hands down, you won't be disappointed.

I’m pretty sure he means baby Dellorto 34s and Weber 34 ict.

Last time I purchased used carbs I ended up putting more money into them in the end to get them going than it would have cost for a new set.

No, he probably meant 36 Dells. With 28 vents and proper jets, 36 Dells are superb on a 1600dp

H2OSB

Lol hard to say. That would mean he got both wrong though ;-)

Sat Jun 15, 2019 7:51 am

H20SB Your right!

Sat Jun 15, 2019 2:58 pm

Baby dells were single barrel 34mm carbs. Pretty comparable to the single barrel Weber’s in price and everything. I could dig out an old magazine and find an ad but I’m kinda lazy and really should mow my lawn.

Sat Jun 15, 2019 5:03 pm

cancel, please realize there is a large range of dual (two) carburetors for VWs- each carb in a dual set can be either a single-throat such as the Solex HD40 (aka Kadron) you mentioned, or can be a dual-throat. Here is a very good guide for deciding on which type you want: http://www.aircooled.net/vw-carburetor-options-selection-101/ Also https://www.thesamba.com/vw/forum/viewtopic.php?t=572107

Fitting any dual carb set, whether single throat or dual, will vastly reduce the access space on the sides of the engine to get to the spark plugs. At least on Beetles. Buses and Ghias have much more space to the sides of the engine, but the closeness of the intake manifolds to the plug wires and plug access holes in the engine tins are still relevant. The reduced access is a necessary evil with duals and you learn to live with that. Once you know how to get to them using certain tools and how to get your arm and hand down there, it's not too bad as long as the engine is cold.

It will help alot if you have a friend come by to help you with the installation of any dual kit, and then adjust the linkage at first engine start.

If considering dual-throats such as a Weber 40IDF or its recent clone the HPMX, don't be lured by the lowest price. Many vendors offer upgrades to the linkage which are worthwhile because the better linkages tend to be sturdier than the lower end ones.

Sat Jun 15, 2019 8:04 pm

There are a bunch of Dual Carbs that run really sweet with 24-28mm venturi's in them.
Those frd's are really old school though maybe on a single port engine.
Is it a single port engine?

Sun Jun 30, 2019 10:33 am

Danwvw wrote: There are a bunch of Dual Carbs that run really sweet with 24-28mm venturi's in them.
Those frd's are really old school though maybe on a single port engine.
Is it a single port engine?

1600 Double Port

Wed Feb 15, 2023 11:22 am

So what did you end up going with? How did it work out for you?

Thu Feb 16, 2023 8:51 am

If it is a stock or mild 1600 the FRD´s can work really well.
One of the best engines I built in my early years was a 1776 w. FRD´s. Easy to work wirh, pulled well and had decent fuel efficiency. After about 90.000 miles the throttle spindles had worn into the metal so the carbs were scrapped and the engine rebuilt with dual IDf´s.

Fri Feb 17, 2023 8:57 am

Weber 34 ICT's are great little carbs but used ones almost always have worn throttle shaft bushing that allows unmetered air. They're simple, reliable, and cheap. Not going to make the big power of IDF's and suffer a bit on fuel economy, but I still like them.

Fri Feb 17, 2023 1:09 pm

34 ICT´s - can - be made to do a decent job, but its a lot of work. And by the time you have replaced all the jets, made proper stacks and massaged the mainfolds to something usefull, several hours have been invested into them. At this point they will be able to perform decent on smaller mild set ups, even fuel efficiency wise. Due to the fixed venturi you are limited to 85ish hp. If you step up to the ICH which is the sister carb you can get a 29 mm venturi which will get the potential up around 100 hp