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wtd - dual action vac advance

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Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#603903
anyone got a dual action vac advance canister?
the advance/retard style
i think they were on most late 1800 and 2L kombis

-Joel

[ Edited on 26-7-2007 by DUB74L ]

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 ·

#603917
Hi

They were also on 71 supers as well. what you up to, turbo?

Steve

Joel Now containing 100\% E-Wang

9,368 posts · joined Feb 2006 ·

#603927
really?
ive never seen one on an aus built bug
i know all the 70s yank bugs had them
my 71 super was one of the very first 1/71 model and didnt have it

but yea new forced induction project underway

looking for a boost retard method

-Joel

greedy53 Bishop of Volkswagenism

3,062 posts · joined Mar 2006 ·

#603939
hmmm interesting
👍👍😂🙅🥷😬🤓

1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 ·

#604012
Hi

The 1st supers in 71 had them, but they gave dreadful fuel consumption, there was a dealer fitted modification to convert them to back to single vac unit. The jets in the carb were also changed 60Z air and a 125 - 130 main from memory. The timing was then set back to 7.5 BTDC from 5ATDC. The supers that were fitted with the dual vac units had an additional vacum port at the rear of the carb facing the back of the car.

Steve

[ Edited on 26-7-2007 by 1303Steve ]