A clearance control system for a gas turbine engine comprising: at least one case support associated with an engine case defining an engine center axis, the at least one case support including a first radial wall portion extending inwardly from the engine case; a clearance control ring positioned adjacent the at least one case support to form an internal cavity between the engine case and the clearance control ring, wherein the clearance control ring includes a first mount feature; an outer air seal having a second mount feature cooperating with the first mount feature such that the clearance control ring can move independently of the engine case in response to changes in temperature; an injection source to inject flow into the internal cavity to control a temperature of the clearance control ring to allow the outer air seal to move in a desired direction to maintain a desired clearance between the outer air seal and an engine component; and the at least one case support includes a second radial wall portion axially spaced from the first radial portion to define the internal cavity, the clearance control ring is radially moveable relative to the first and second radial wall portions (84, 86) in response to changes in temperature, characterized in that: the clearance control system further comprises a seal support portion fit to the engine case adjacent to the at least one case support, wherein the seal support portion includes a radially outward portion that is fit within a groove formed in the engine case adjacent each of the first and second radial wall portions (84, 86) to seat an assembly of the at least one case support, clearance control ring and outer air seal relative to the case, and wherein the clearance control ring is not directly tied to the engine case or the seal support portion. at least one case support associated with an engine case defining an engine center axis, the at least one case support including a first radial wall portion extending inwardly from the engine case; a clearance control ring positioned adjacent the at least one case support to form an internal cavity between the engine case and the clearance control ring, wherein the clearance control ring includes a first mount feature; an outer air seal having a second mount feature cooperating with the first mount feature such that the clearance control ring can move independently of the engine case in response to changes in temperature; an injection source to inject flow into the internal cavity to control a temperature of the clearance control ring to allow the outer air seal to move in a desired direction to maintain a desired clearance between the outer air seal and an engine component; and the at least one case support includes a second radial wall portion axially spaced from the first radial portion to define the internal cavity, the clearance control ring is radially moveable relative to the first and second radial wall portions (84, 86) in response to changes in temperature, characterized in that: the clearance control system further comprises a seal support portion fit to the engine case adjacent to the at least one case support, wherein the seal support portion includes a radially outward portion that is fit within a groove formed in the engine case adjacent each of the first and second radial wall portions (84, 86) to seat an assembly of the at least one case support, clearance control ring and outer air seal relative to the case, and wherein the clearance control ring is not directly tied to the engine case or the seal support portion.