What Carb should I get??

[Volksthing74]

Hey I just rebuilt the engine in my thing, and I want to replace the stock carb with something a little better, and I want to get rid of the oil bath air cleaner. any particular model recommended??

[Ferretkona]

What size of motor, what cam did you use?

[Volksthing74]

It was a 1600, and I rebuilt using 87mm P&C's so no displacement should be around 1650. it still has the stock cam...

[kubelmann]

This is a long debated issue. But it is difficult to improve on a 34 pict 4 carb with a stock oil bath cleaner. The old Porsche Zenith NDIX carb is becoming rarer and tough to find a good one. YOu could put on a single baby Dell 36 or a Weber.. You could get hold of AJ Sims and go with Kadrons. Here are some issues to consider. When you add carburation on a stock size motor you lose gas milage and gain power. You alos put the engine in a situation where the driver can hurt the motor. Also the stock oil bath system is very well designed. Old school would talk about Pinto carbs, Weber bug spray and the like. Now with a few folks making OG Solex carbs like new it has so many advantages. Thyeare worth considering seriously. Next in line are the Kadron and Weber choice. Next comes Dells and Zenith. I list the best carbs last because they are not available new and it takes work to get them dialed in and working correctly..... I spent over a year gettting a pair of Dells dialed in on my 1915 motor... Once set correctly they are very nice...

[c.davis419]

A pair of nicely dialed in dual Kadrons will offer much greater horsepower and torque with almost no difference in MPG. Little to no difference in long term lasting engines with much more punch. I am biased as I desire much more out of a stock powerplant.
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1967 beetle
1974 Thing

[bljones]

I agree with the kadron recommendation. kadrons are a great way to "pep up" a nearly stock displacement engine, with little downside. Easy to tune, cheap to buy and rebuild, good gas mileage, and they can be hopped up if you decide to increase your engine displacement down the road.
The only downside is that they have no chokes, so cold starts on cold days will take a little throttle feathering to stay happy.


Add 1.4 ratio rockers, have the carbs ported for an SVDA dizzy, install a more open exhaust and your engine will really come alive.
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OG JHC
Author of Original Rant #1
"It stingd itself to dead... now that is control on you"

2%

[Volksthing74]

http://www.thesamba.com/vw/classifieds/detail.php?id=310285

http://www.thesamba.com/vw/classifieds/detail.php?id=306046

How are one of those??
or please make some suggestions.... Thanks

[LEJ]

This is what they were talking about.

The first set makes no mention of manifolds so be careful if you should choose to make this purchase.

I've used Kadrons in the past. Most of them require that the linkage adjustments be exact, in other words, both carbs must open exactly the same otherwise, one side is rich and the other side is lean. Also, plan on spending some time dialing in the accelerator pumps.

Try to purchase a set that is jetted for your altitude and engine displacement.
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The more you know, the more you know you don't know.

[bljones]

yep, that's them.

For the novice wrench , i do not recommend buying used kadrons. There are so many variables (jetting, throttle shaft wear, linkage slop, check valve condition) that it can be an exercise in frustration to set them up properly, unless you know what you are doing.

contact AJ Sims at www.lowbugget.com he is the kadron guru, and sells kits, parts and offers advice.
_________________
OG JHC
Author of Original Rant #1
"It stingd itself to dead... now that is control on you"

2%

[kubelmann]

You can buy used Kadrons as long as you send them to AJ and have him set them up for you.. Consider that as part of the price of the used carbs. Like Bj says there are far too many variables for even a long time VW person to get dialed in. AJ is a great guy and will make your carburation perfect the first time. If I were you I would just go ahead and call him. He is a great guy to talk to and he will give you the best solution within your budget. You can trust him without reserve.

[bucko]

I would also suggest that you have AJ perform the modification to the base of one carb, to add the vacuum port to retain your vacuum advance distributor. Otherwise, you will need to purchase a 009 distributor which works on a syntrifical advance method. Some dial these in without fail, but most (me included) find that a stock VW engine works best when the timing is brought in with vacuum, as the engine RPM requires it. The 009 is famous for having an off idle flat spot.