Weber Carbs..advantages? disadvantages? Cost?

[Scott_Tucker]

I work in a shop that is divided into two businesses. One is the carburetor rebuilding shop and the other is a repair and tuning shop. I work in the repair and tuning shop. I do not build the carbs. I do diagnosis, general repair, and tuning. After talking to our rebuilders, I was wrong, you are correct. There are a lot of older carbs and motorcycle carbs that do not have true accelerator pumps. Many have acceleration enrichment devices but some have nothing.

We tune car carburetors but, although we rebuild motorcycle, stationary engine, forklift, etc. carbs we do not tune them in my part of the shop. I mostly see carbs from American cars 1950 and newer. I see a lot of quadrajets, Holleys, Carters, etc. and computer controlled carbs.

Sorry for the late response, my time is limited.

 

[expat]

Fair enough

 

[hsd]

My 71 Datsun 240Z has SU carbs which have no accelerator pumps. It still runs great with minimal carb problems. I believe all the 240Z cars 70 to 74 has SU's along with some Brittish cars of that era. The earlier ones ran good, the later carbs which had more emissions tuning were [censored]. Some of the newer 280Z fuel injected cars with the same inline 6 cyl engine have been converted back to the early carb setup for easier tuning. Tripple weber carbs is another popular conversion for these cars.

 

[Scott_Tucker]

Weber's are definitely a good replacement for the SU's on the Z cars. They usually run super rich even when freshly rebuilt and are difficult to get good driveability. SU's aren't bad carbs but there are better on the market.