SVDA Distributor Help

[71_georgia_beetle]

My original post on other sites can be found below. I have learned that the two distributor I was in search of are DVDA. I am in need of an SVDA that will work with my new set up. Stock 1800, 40/44 EIS Dual KADS and a ?????? distributor. I'm fairly certain that there are folks out there running this combo.

Thanks in advance!

[busman78]

205N

[71_georgia_beetle]

[keifernet]

[1975 Kombi]

http://www.thesamba.com/vw/classifieds/detail.php?id=762034

Here is an ad for a 205N
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[71_georgia_beetle]

[71_georgia_beetle]

[jl74supercab]

The way I read your question is what distributor will work with your KADS? Is that correct?
The KADS are not stock, and normally do not have ported vaccuum.
Have your KADS been modified to have the ported vaccuum added? If not, no type of vaccuum advance is going to help you and you will have to use an 009.
Check here for more info. The way they do it you need an SVDA.
http://www.lowbugget.com/kadron_labor.html
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73 Riviera Camper - "Julius"
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[norcalmike]

why are you "punting" the 009? is it broken? are you having tuning problems with it

[Randy in Maine]

I would suggest getting one or both of the kads properly tapped for ported vacuum and running a SVDA (034, 205S, or a aircooled modified one for dual carbs) with timing to be similar to a 009 (wind up the engine and setting the max advance to 30º BTDC when it is all in, then plugging in the vacuum hose to make sure your total is 42º BTDC or less at max centrifical + vacuum advance). Then drive it and see how it runs. Some tweaking is allowed.

I would pick a good shop to do the carb porting myself. Even though it is not rocket science, many of those who try manage to do it wrong.

009s are not for type 4 engines. Period. Even John Muir (who loved them) said not to use them for type 4s. Inadequate advance for us. I have two that I use for doorstops. Work great.

I would also suggest tapping both intake manifolds also to provide for even manifold vacuum to the brake booster servo.

That 205N would work IF you had all of the vacuum stuff that would have come with the stock dual solexes. There are a million connections that are possible to leak vacuum in that system and the vacuum fittings are getting hard to find.

Just my 2 cents (keeping in mind that I am a FI guy).

[SGKent]

i prefer the factory distributors but had an 009 on a 1971 bus with dual webers for years. To set the timing, make sure the centrifigal advance works by watching the timing as you speed up and slow down the engine. Next set the total advance to 28 - 32 degrees max. Last, adjust the idle speed and mixtures. Then go back and check everything one more time including carb sync.
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[keifernet]

[SGKent]

[Randy in Maine]

No you won't. The <42º total advance (centrifical + vacuum) is OK and is delightful in a type 4 engine that the original poster has.....

example from www.oldvolks home for a 205S SVDA.....

Bus & Pickup Late 1976-1978 All States, 1979 Federal * 2000

Timing Set At:: 7.5deg BTDC @ 850-950 rpm (Man Trans), 900-1000 rpm (Auto Trans) w/strobe, vacuum hose connected
Advance/Retard Range: Vacuum: 8.5-11deg Adv @ 7.9 In. Hg; Centrifugal: 8-13deg @ 1600 rpm, 20.5-24.5 @ 3400 rpm

7.5º initial timing + 11º max vacuum advance + 24.5º max centrifical advance = 43º max advance. About the only time you ever see that is when you are at highway speed coasting down a hill. As soon as you put your foot in it, that vacuum advance will go away when you need to make power. VW designed it that way and it works.

graphically (the 205P is pretty much the same as a 205S)....

[busman78]

On the other forum you were advised to run the 205N and disregard the retard part of the canister. A T4 only needs 28 to 32, I am running 12 degrees initial with a max of 28.

[Jalabert]

I hope this isn't seen as hijacking - rather adding to the thread. I'm going to replace my 009 with a mex svda. Running Weber 34ict's, so vacuum isn't an issue. Question is - if I'm taking the vacuum from one carb, do I need a anti-pulse valve?

Cheers

Simon

[keifernet]

[71_georgia_beetle]