Turbocharger having improved ported shroud compressor housing

A turbocharger includes ported shroud compressor housing disposed about a compressor wheel, having an air inlet passage extending axially along and circumferentially about a longitudinal axis, volute base portion operably adjacent to compressor wheel, contour that encircles and complementarily matches compressor wheel, inducer including ring and plurality of extending members, inlet section extending from volute base portion, and recirculation cavity formed in volute base portion and inlet section with a recirculation slot and inlet slot for reentry of airflow into inlet section. The ring has an inner wall surface defining a first section extending axially along the longitudinal axis and proximate to the compressor wheel, second section extending from first section radially away from longitudinal axis, and third section extending from second section along longitudinal axis and distal to the compressor wheel. The inlet section has a first diameter and third section has a second diameter greater than first diameter.