I have an 89 RX7 GXL converted to turbo. It does have the turbo brake setup. I am replacing my brake lines and when I do it I want to completely swap my brake fluid. How much fluid is typical for complete bleed/replacement?

 

A liter of brake fluid will be enough. Make sure you suck out as much of the old fluid from the reservoir (i use a turkey baster). Once you've sucked out as much as you can, top off the reservoir with new fluid and start bleeding your brakes. Sucking out the old fluid helps you use less of the new stuff since its not getting mixed with a bunch of the old fluid.