Okrasa engine

[fastbackdavid]

Has anyone used a vacuum advance distrib. with the Okrasa set up?

[fastbackdavid]

Hello Bueller Bueller anyone?

[esde]

Just vacuum? Or SVDA?
What are you trying to accomplish?
With what carbs?
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[hazetguy]

This is the dist the op is asking about using. VJUR4BR8

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[1958ghia]

I am interested in knowing this too, anyone running a Vac/mech advance distributor like the VJUR4BR8 with an Okrasa or Okrasa-style Kit? Is there a place to tap off one or both carbs for vacuum? Thanks!

[swanlakers]

Oettinger used a vacuum advance distrib. with the Okrasa

[1958ghia]

Ah very interesting, good catch there! thanks!

[Glenn]

They also used VJ4BR25 (010) mechanical only.
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Glenn
74 Beetle Specs | 74 Beetle Restoration | 2180cc Engine
"You may not get what you pay for, but you always pay for what you get"

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[56samba]

[56samba]

Just a few links to scroll down and see how old engines had stock 36hp dizzies mounted...

https://felix03.jimdo.com/zweivergaseranlagen-im-%C3%BCberblick/okrasa-tuning/

http://www.flat4.de/zcarb.htm

http://www.ascort-tsv-1300.com/Technical_3.htm

[1958ghia]

Thanks guys! Trying to keep my stock distributor to keep the numbers-matching parts as much as I can on my '59 Ragtop. Right now just found out the cam and lifters HATED each other and decided to eat each other, so those are going away along with the heads that were ran too long with over 80-thou valve clearance... So new heads were a must anyways, so why not give it some more kick?! Here it is before teardown:

[1958ghia]

Just found this interesting picture showing the full path of a vacuum advance line over to the far passenger side for some reason...

[1958ghia]

So I just received my WW Okrasa Kit, and it specifically states you have to go to a dizzy distributor because the carbs aren’t set up for a vacuum take-off. In doing some digging I came up with this military site that shows drilling out of a port next to the accelerator pump as you can see. I was thinking about drilling this out and tapping at 6.0x1.0 standard threads to be able to utilize the standard 4.0mm OD copper tube vacuum line and original 36hp vacuum fittings.

https://forums.g503.com/viewtopic.php?t=133909

This port has an obvious path that heads down to the intake surface but has a brass plug, would that need to be drilled out and gasket opened up??

[1958ghia]

Update: drilled & tapped the port mentioned above, then drilled out the small brass plug from the bottom so now I can cut a small notch in the carb gasket to pull vacuum from the intake!
For reference, this is just a temp mock-up with original 36hp 4mm OD vacuum line, I’ll likely need a longer line so I can route it better! I hope this helps somebody in the future, it was a bit scary drilling into a brand new carb!!

[texstardetail]

I had the kit in my cart to purchase too! Guess you beat me to the punch.
What distributor are you needing to run with this kit? I too wanted to keep the OG distributor, but figure I'd rather install a new distributor vs tapping a carb. I know I'd screw it up somehow

[Braukuche]