Abstract: A vehicle wash system may have a drying station that may have a frame and a blower mounted on the frame. The blower may be used blowing liquid from the surface of a vehicle and may have a plenum with a cavity opening, an exit port, and an interior cavity. An impeller may be positioned inside the cavity, and when driven by a motor, may be operable to draw air into the cavity compress the air, and then emit an airflow from the plenum through the exit port. The blower may have an inlet region formed proximate the cavity opening and be in communication with the cavity. The inlet region may have a generally tubular inlet opening. A movement apparatus may be provided that is movable axially relative to the inlet opening to vary the size of the tubular inlet opening. The system may also include a sensor system operable to detect the presence and/or absence of a vehicle at drying station.