Annular ?

[Chrippa]

What is it when a carb has a annular discharge ? And what is it good for ?

 

[66dartman]

See this month's Popular Hot Rodding, there is a whole article about carbs that shows all the differences.

 

[moper]

It's a type of booster in the venturi of the carb. They are more sensitive to airflow, so they work decent in carbs that may be "too big" for a given engine. Or on engines that might be soft in the lower rpms. They can cause surging at cruise if not the carb is not tuned right too.

 

[dgc333]

Also, typically you will only find them in the bigger carbs like dominators and king demons

 

[Chrippa]

So they are to put on engines that might be to small for the carb ? Or is the otherway around ?

 

[rumblefish360]

Carbt o big for the engine, OR, very weak vaccum signal at the carb.