I've got a 650 CFM dust collector connected to the collection port on the back of the Unisaw, which does almost no good. Looking at the cabinet of the saw, it's easy to see why; there's so many huge holes in the cabinet for air leaks.
I've taken off the factory guard, so I can seal up the annular slot in the back where the guard mounting bar used to stick out of. Various other small bolt holes will be easy to seal up too. The big problem is the annular slot in the front where the blade elevating shaft comes out. I can't seal that without disabling the blade tilt mechanism.
I'm willing to invest in a better dust collector (I'm leaning towards the 2 HP woodsucker cyclone, http://www.woodsucker.com /), but I suspect there's not much point if I can't figure out how to significantly improve the airflow in the cabinet. How have other people dealt with this problem?