So, why do drag racers still shift manually ?
I understand positive manifold pressure as well as the source of vacuum.
Aren’t drag cars supercharged ?
Forced air ?
Turbo charged is slightly different as it works more on the back end vs. the front end like superchargers.
Turbo works best at high rpms while a supercharger is always on.
I don’t think there are many “Turbos” on the drag racing circuit.
Manual transmissions are sometimes used in racing just to add a measure of driver skill (NASCAR, for example), or, in many racing classes, to help keep costs down for competitors.
I don't know if they do. Powerglides are pretty popular. Some of them have air-shifters which don't use a clutch. It depends on what kind of drag car it is.
I don’t think there are many “Turbos” on the drag racing circuit.
Oh sure there are. Happens all the time. Usually twin turbos.