80 mgs of turinabol are too many - 50-60 should be plenty for most people. It is a liver toxic compound, so I would limit the cycle duration to 8 weeks only. However, at such a high dosage I would not go past 6 weeks. Make sure to be using a good liver supporting supplement. Turinabol without testosterone might lead to some reduction of libido, but I have not tried to do this personally, so I can not share my experience.