56 Ghia build with Webasto and Judson

[JeffL]

Shaking down the Judson now. Taking some IR temp readings as a baseline. I am using a FLIR adapter on my iPhone and manually set the temp range of 100-200f. Anything below 100 is black.

We are developing about 4.5 psi of boost

Mods are 22mm Venturi, 010, stainless Abarth
4 tip. Running 4.5 lbs boost. I have seen 5 plus but likely too high on the rpms…..

On the first 3 runs we see about 146 on the blower housing. Outside temps in the low 70s in Florida.

_________________
http://karmannghias.org/
https://karmannghias.org/GAlken/index.html

[JeffL]

Ok. I had 4 shims/gaskets to get the one fuel pump down to 4 psi. The total was 2.08 mm

I had a 1 mm thick gasket I put it with the fuel pump running spring 5. We have a nice 3.2 psi which I will run. I will keep the first as a backup. Taking 1 mm of gasket out raised is about 1/2 psi from the prior trial run.

After 2 hrs the fuel pressure is still holding so the rebuild looks good. The float shutoff is holding too in the carb.

Having a fuel tank reserve lever helps make these trials a little easier.

_________________
http://karmannghias.org/
https://karmannghias.org/GAlken/index.html

[JeffL]

Because I am working on pump pressure for the Judson Supercharger, I learned about some pump updates.

More pressure was available in June of 58 with a design change (air pocket) to get a max of 2.5 psi. Maybe that is the chamber above the diaphragm?

In Dec 58 fuel pumps came with a filter and the top was different. There is not a brass plug on earlier fuel pumps, just a “bell” there. I don't know what my original 56 has and the tops could be changed to accommodate the filter.

If I am starting with a pump that uses a filter I should be good.

My stock pump would not have a fuel filter. Design pressure is 1.3 to 1.8 psi.

A 356 motor has a pump pressure of 2.5 psi but the line is larger, I think 8 m vs 6 mm and that's why I think we will need between 3 and 4 psi for a Judson setup. Many articles/threads say that a 356 spring was use to get more pressure for the Judson.

Filter

No Filter

_________________
http://karmannghias.org/
https://karmannghias.org/GAlken/index.html

[JeffL]

In driving the Ghia, I like a left hand mirror. I picked up a first version, not as early as I would like but is has a wider buffer so looks better. I already have an antenna mounted on the right, so the "clean lines" were already mucked up.

To mount it, there is a template in the 52-57 workshop manual.

What I found interesting, it says that inland market Ghias (maybe just Germany) came with a mirror. The holes were predrilled. This chassis 1 323 910 is in October of 1956.

_________________
http://karmannghias.org/
https://karmannghias.org/GAlken/index.html

[JeffL]

[Wiggy]

Its crazy that when i was first starting out in VW's in the early 90s, I went to your house near Lancaster to check out a 57 convertible you had for sale. You showed me this car at your house. After all of this time, its so cool that you got her finished and did so in such an amazing fashion. Congratulations!
_________________
Kevin "Wiggy"

My 58 Ghia Vert

My 51 Split 11G

My 57 Deluxe

My 56 Oval

[JeffL]

I thought I would work on fuel pressure for the Judson.

While I did this already, I got my fuel pumps mixed dafter the hurricane so I thought I would build one more then test. I will go for the 3 to 4 psi fuel range and closer to 3 psi.

Here I had 5 springs and didn't know which to use. So I took apart and old 36h spare and it is number 1 on the chart for comparison. I measured the physical specs of all 6 but needed a "force" measurement.

I took 2 sockets and made a sliding holder like a caliper. I could put the springs in there and see which ones took the most force to compress but not collapse.

In the end, I used a container with about 3.5 lbs of total weight. It allowed all of the springs to compress but not fully collapse. Pretty low tech but relative for what I wanted. Interesting that weight is close to the fuel pressure since the spring surface area is a little larger than 1 square inch!

I chose spring 5 because of the increased force and same stock diameter.

Spring 4, i think a Judson design I got back in the day, is crazy strong in comparison to others. Maybe I need that I doubt it.

Spring #2 was in a 356 fuel pump kit which is to be stronger than a VW and here is was not (if my VW is an old stock one).

This week I will do fuel pressure tests with my standard carb, no Judson, and see where we fall.

Update: it looks like my standard pump was doing about 1.5 psi when the standard is 1.85 psi. I have a few extra gaskets causing this. I needed those to drop the last pump pressure down to 4.0 so.

I put the one in with the number 5 spring and we got about 2.5 psi, maybe enough? I put the last in and had 4 psi which must be what i tested before for the Judson. There were 4 - 0.5 mm gaskets to the pump actuator block (and the seal to the case). I will run this last one with the other as the backup.

If I take a gasket out, maybe the #5 spring would work and get to 3 psi

_________________
http://karmannghias.org/
https://karmannghias.org/GAlken/index.html

[Blade3562]

Enjoy a few more pictures from my visit that I forgot to upload. While I tease my dad about not restoring the 1955 Antelope Brown Ghia he had there is no denying Trout Blue highlights the car's design. The color really does change in different lights like a trout under wavy surface water. I can't wait to help with the Judson; maybe it'll have a mind bending 40hp when we're done with it!

[JeffL]

[VeloMikey]

Airhead Parts should make them blank. They could machine a punch out on the underside or include a template so you can choose your hole pattern or make your own.
_________________
'58 Ghia 2387cc with a Berg / Folts 5 Speed

Ghia Build Thread https://www.thesamba.com/vw/forum/viewtopic.php?t=768748

[Loren]

It’s a tough call. Sill plates take quite a beating and finding a set to match this level or restoration would be near impossible. I think a set of polished used plates wouldn’t match the factory fresh look of this Ghia and either NOS or reproduction plates are the only way to go.

[RockStock]

If being picky about using the right screws, surely be picky about using the right sill plates.
Use the wrong plates, and you may as well use philips-headed screws.

For me, it's these details on the early cars that set them apart.

I'd be giving those OG sill plates a clean and a polish, and reinstalling.
_________________
-StockRocks-

[John Moxon]

[VeloMikey]

[JeffL]

[sputnick60]

[JeffL]

[RockStock]

So you used the correct 6-screw sill plate, right?
_________________
-StockRocks-

[Braukuche]

Beautiful car, can’t wait to get your feedback on the Judson.
_________________
Go Reds! Smash state!

Retirement is here!
1960 double cab
1960 Baja Bug
1963 stretched double cab
1962 Golde sunroof Ghia
1963 356 B coupe
1963 Notchback
1967 21 window less rusty now
1989 Westfalia

[JeffL]