I already have a circle of track for my son, plus four more EZ track 18" radius sections. I also have the EZ track 90 degree crossing (with the four 2" connections). What else do I need to make a figure 8?
I figured it out. You need 18 pieces of 18in radius curves, one 90 degree crossing, four 2in straight sections, four 9in straight sections, and four 6in straight sections. This is Bachmann EZ track.
For a 90 degree figure 8, you need a total of 18 curved sections, 4 9" straights, and all the pieces you have in the middle. I think all of that is right, but I only did a quick search.