1968 bus with 2007cc engine. Best Carbs?

[aeromech]

Thursday update:
A samba member has sold us his better used 40 DRLA's so that issue has been resolved. Now, here's my next question. I'm running a stock engine driven fuel pump and I think I'm going to have to install a fuel pressure regulator to reduce the pressure down to around 2 1/2 psi if I'm not mistaken. I'd also like to install a fixed fuel pressure gauge just because I think it would be useful as well as look bitchin. If anyone has done this already to their type 1 engine would they please post some pics so I can get an idea of where to mount this stuff and the best way to plumb it? Your advice and help are greatly appreciated.
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[Marv [UK]]

[aeromech]

Here's the engine it's all going on.

I guess shimming the pump would be the most straight forward way to reduce the pressure.
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[74 Thing]

Exactly, just tee in a pressure gauge and then shim to get your desired fuel pressure (around 3lbs) then remove the gauge. Make sure the floats are set correctly before installing the carbs and make sure that the manifolds sit flat on the head and do not interfere with the cylinder tin or fan shroud. You may have to file or sand part of the manifold so it fits properly as well as modify the cylinder tin opening.

Also verify jetting-according to the CB book stock jetting on dual 40 DRLAs are 34 vents, 180 air, 140 mains, 60 idle, 35 accl pump jets.

Then just synch them up and check for vac leaks then adjust the mixture screws, synch up again and them make sure the linkage does not effect the synch and that both carbs open at the same time.

[Yellowbeard]

[daos]

i'm starting a 2007 build, this thread has been really useful. i'm now leaning toward dell 40s... or 36s... or 40s...

[aeromech]

Here’s my suggestion. Buy the Weber kit with the good CB linkage from air cooled.net and pay the extra $80 for cleaning and jetting
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[daos]

shipping to eu + swedish toll on top of the kit would probably kill me but that's one way to go for sure.

[aeromech]

Ah, I didn't know that you were a foreigner. You probably have better access to Dellortos over there. They are great carburetors. It's just that Webers are still in production
_________________
Lead Mechanic: San Diego Air and Space Museum
Licensed Airframe and Powerplant Mechanic
Licensed Pilot (Single engine Land)
Boeing 727,737-200-300-400,757,767
Airbus A319,320,321
DC9/MD80
BAe146
Fokker F28/F100
VW type 1 1962,63,65,69,72
VW Type 2 1971 (3 ea.) 1978, 1969
VW Jetta
VW Passat
Capable of leaping tall buildings in a single bound

[daos]

i'm a NOS fan. plenty of dells here, pretty good value too.

also found the cb kit over here at a couple of places. a mere 1000 USD...

[Bryan67]