connecting to WMS

I am trying to connect to an esri image service via WMS (using v8i) and have come across an issue. I can consume the service when I make requests in decimal degrees (EPSG:4326) but when I switch to a projected coordinate system using feet (EPSG:3089), the service does not work. I captured the WMS request using Fiddler and found that the MinY and MinX values are in meters whereas the MaxX and MaxY are in feet. I can preview the service in the Raster Manager and that request uses the proper coordinates. This only happens when making requests using feet. Services with decimal degrees and meters work fine.