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Alfa 2600 Spider, Alfa 1750 GTV, Spider Duetto 1600
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Hi Serge,
Two weeks ago I have posted a similar topic on this platform, because I am in the same position you are.
My 2600 Touring Spider was original 'Paglierino'. The bodywork is almost finished and I have used the Corona quarantine to speed ahead with the other parts.
Because the bodywork has been done so beautiful I think it is a waste to paint the bottom, motor compartiment and trunk in black.
But I am very much in doubt, because I have seen a picture of a 2000 Touring (I believe it was Don's), which I attached. Beautiful!!
Therefore I am tending to do everything original: black bottom side, trunk and motor compartment and the body in Paglierino. But still in doubt!
This summer I will be in the VAR. I have a house in Flayosc and I would love to come over and meet you and see your car.
Regards Pieter
 

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Discussion Starter #1,063
Pieter,
The photo of the car is from Don. His 2000 T is magnificent. For my point of view, it is better to stay in black for the underside, the trunk and the engine compartment. I will see you with pleasure this summer. You absolutely must come and visit Retro Rosso and Alfa Classic Motors in Brignole (maybe we could meet there).

Mark,
Yes, this is exactly the type of AFR meter I recommend.
The important thing is the probe. It must be heated.

Here is the kit I bought :

The probe is a BOSCH LSU4.9

It is recognized by all as being perfectly adapted.
 

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Discussion Starter #1,064
Hello everyone,

The road to performance is long ...
I did a lot of testing with different Weber settings.

First, with my closed float bowls: it doesn't work. As soon as the butterflies pass through the progression holes, no fuel comes ... I am sure it is due to the position of the hole in the original plenum.

Here you have the main configurations that I tested. I did not mention those that do not work (I made a lot of adjustments ...):

1631835


I tested a lot of emulsion tubes. That of Keith Franck leaned the curves a lot - Around 2 points (Don, that is perhaps why you have the impression that it gives you very good results on your car which seems at the base set very rich). I put them aside.
The best result is obtained with the F2 tube which is actually recommended for "large" unit displacements like the 2300 4 cylinders.

Here are the curves of AFR. The green being the one which gives the best result with an AFR close to 12.6 at full load passed 3000 rpm (average is 12,57 !).

1631836


I remind you that these curves are made foot to the floor, the only way to compare them all. The lean peak at 2250 rpm should therefore not be interpreted as it is. It just gives an indication of how the car will behave during acceleration under 3000 rpm. The green curve gives a very good feeling during this phase with a car very quick to tear itself away.
With this last setting the car is just perfect
A Dino test will confirm my very good feeling.
I will let you know.
 

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I’ve already got a set of F2s. I’ll try them when I get back to the dyno.
 

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Discussion Starter #1,066
My car has the same brown spiral wrapped oil pressure sending line; I believe it is 61 years old.
Mark,
After 60 years of life my brown spiral wrapped oil pressure line is dead ...

1631973


This is the new one for the next 60 years :

1631974
1631975

1631976
 

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Discussion Starter #1,068
Don't worry Mark,
Last weekend, I drained the engine.
Looking for a sneaky oil leak, I noticed that it came from this porous oil hose.
I therefore dismantled it with a view to replacing it.
By fiddling with it, it broke.

I wanted, for a few minutes, to replace this hose for a faithful remanufacturing. But there are 42 cm. So I asked my wife if she really wanted to have the children's higher education ... She did not follow me.
 

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I tracked down the fuel line to a Ferrari parts specialist.
It was expensive but when you've just bought five new 165x400 Pirelli Cinturatos it's all relative.
New fuel line fitted S6002517.JPG
 

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Good on you Serge for doing the research work on your car, and good information for 102 owners, I call this progress. The oil line looks like good quality and should be plenty of durable, I reckon you would have one the best built cars in Europe your work is so thorough well done sir!
Tim
 

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Discussion Starter #1,072

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Serge,

I’ve been having an exchange with Keith Franck (something of a challenge in its own right). He’s asked for you to get in touch, as he’s developed a new “NF” tube he thinks would help you. I’ll reserve my opinion at this point, but you might give his offer a try.
 

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Serge,

Here’s some contact info.
He is prone to rather exaggerated responses, and a degree of belligerence. He seems to demand adoration and unquestioning loyalty. Maybe he should run for President of the US.

I actually don’t believe he fully understands what he’s doing, but sometimes it works.

I tried to explain to him how you believe the 102 plenum adds problems, and you can see his reply below.

I recommend you join his “group”, as that will give you an easier exchange medium.

Good luck!
Don


I would strongly urge Serge to disable any float bowl venting modification he has otherwise all bets are off with regards to my tubes. it is not needed.
--
-Keith Franck
http://Webstore.com/~DCOE_Tuner
Cell 1-925-500-3950
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