I finished a fishless cycle about two months ago.. From my records it took me 13 days to show anytype of nitrites. The nitrites will keep climbing for a while. Keep the ammonia level to 4 ppm.. I would not go much higher than 5 ppm on the ammonia since those levels tend to stall the cycle.
Check out this link below it may help you..
http://www.aquarticles.com/articles/...ess_Cycle.html