[T3] Dual Carb Shift Vacuum

[Jim Adney]

What you've done looks really nice. I like the photo of your solution 
in place on the engine, with the spark plug wire in place. That 
really makes it clear how careful you had to be to make this all fit. 
Nice job!

Hope it makes all the difference you need, but it occurs to me that 
with different carbs on there, the vacuum profiles are bound to be 
different. This may require a different VM, and I don't know if there 
are others out there that might be useful (other than the 3 that VW 
provided.)

On 14 May 2014 at 18:46, Craigs List wrote:

> Guys,
> 
> I have a little bit of an update. I decided to dive into drilling and
> tapping all 4 manifold ports today. After work I got the passenger side
> manifold drilled and tapped. I will finish the drivers' side manifold
> sometime next week. I have few plans over the next few days that will keep
> me from finishing.
> 
> I went on a test drive with just the one manifold ported with BOTH
> cylinders tapped. You  can tell that it has helped quite a bit. With the
> erratic vacuum signal that I was getting with only the one cylinder tapped,
> it would downshift hard when you were coming to a stop. Just porting the
> second cylinder on that side has taken that away. It rolls to a stop and
> downshifts like it should. It is almost unnoticeable.
> 
> It sill does not want to shift into third, but it does shift a lot smother.
> I can't wait to get the other side tapped and a balance tube ran. I am
> happy with what it did so far. I will let the pictures do the talking.
> 
> In this first picture, you can get a feel for what I wanted to do. I could
> not think of a way to get this to work,.
> 
> http://one4house.com/images/manifold6.jpg
> 
> Because of room constraints and such, I decided to go with the setup you
> see below. It ended up working out great.
> 
> http://one4house.com/images/manifold1.jpg
> 
> http://one4house.com/images/manifold2.jpg
> 
> These last 3 pictures are the manifold bolted into place before I put the
> carb back on.
> 
> http://one4house.com/images/manifold3.jpg
> 
> http://one4house.com/images/manifold4.jpg
> 
> http://one4house.com/images/manifold5.jpg
> 
> I will post some more pictures next week when I get the other side done.

-- 
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Jim Adney, jadney at vwtype3.org
Madison, Wisconsin, USA
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