Dellorto drla 40 jetting help?

[Centerline99]

Hi, I have my old 1914 totally rebuild and want to check with you experts , if i need to by some more jets?

1914 type 1 bug engine.

AS21 case refurbished by professionals.
CB counterweight 69mm crankshaft.New
200mm Flywheel.
Stage 1 pressure plate.New
Everything balanced
Org. rods renovated balanced.
Web 163 camshaft. 108 LC, Web lifters New
30 mm Shadek oil pump, New
Full flow. New
94 mm Mahle cylinders & pistons. Balanced +/- 0.5 gr. New
044 Empi gtv 94mm full mild porting CR 9.3,1 New
Bolted rocker shafts, stock rockers.
CB Magnaspark New
Type 1 manifold intake match ported, New
CSP Python 1 1/2 New
//////////////////////////
Dellorto drla 40
Main jet 140 ( also have 135)
Idle jet 60 (also 55)
Air 180
Pump jet 33 i think??
Venturies 34 ( also have 32)

Is this okay to start with before the dyno, or are there other ideas out there ?

Best regards Gurra

[Alstrup]

First, you need to get a 2" cone to install at the header flange. Those Pythons are awfull on smaller engines out of the box.
Slightly dependant on which model Dellorto you have, something like this:
5,5ish mm float height.
58 idle.
34 mm venturis
140 main
# 2 or 3 E tubes
180 main air.

32 mm venturis would probably be more than enough for the power window, but I have noticed that Especially Alfa Dells often work better with 34´s all the way down from about 115 hp. And even more if you run a programmable- or an SVDA distributor.
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https://www.thesamba.com/vw/forum/viewtopic.php?t=435993

[Centerline99]

Thanks Alstrup👍, then I didn't read enough about the python system ! I have a hard☠️ TT Sebring 1 1/2 too but it will probably be worse in this engine? I also have a 123 tune+ that I thought I'd try after I've driven the car a bit, but these i need a expert to set right at a dyno. (And I have read old posts here that you make venturis for Dellorto drla? Can you write here or on Pm if you still make these your contact information for these? )
These are my Dellortos!img]

https://www.thesamba.com/vw/gallery/pix/2489177.jpg[/img]
[

quote="Alstrup"]First, you need to get a 2" cone to install at the header flange. Those Pythons are awfull on smaller engines out of the box.
Slightly dependant on which model Dellorto you have, something like this:
5,5ish mm float height.
58 idle.
34 mm venturis
140 main
# 2 or 3 E tubes
180 main air.

32 mm venturis would probably be more than enough for the power window, but I have noticed that Especially Alfa Dells often work better with 34´s all the way down from about 115 hp. And even more if you run a programmable- or an SVDA distributor.[/quote]

[Alstrup]

Yhose are the Alfa Dellorto´s. Leave them as is.
With the 1213. Drill the left manifold so you can get maniufold vacum. Better.
_________________
https://www.thesamba.com/vw/forum/viewtopic.php?t=435993

[Centerline99]