Do you think this is enough to duo a Tyra or Snorlax?
Answers
Tyranitar you can probably duo with that line up, if you wait for Cloudy Weather. (MAYBE even if in neutral weather) If you dodge a few charged moves you can likely take it down, though it might take you a few tries to get it done. Double Super-effective damage, weather boosted, and a few key dodges, it should be enough.
Snorlax, probably not even in Cloudy Weather. You only get Single-Effective Fighting Damage, not Double-Effective, so you won't likely be able to do enough damage in the 180 seconds to take it down.
It's possible - not easy. There is very little room for mistakes, very little room for accounting for network lag or phone lag, very little room to accommodate a Ttar getting off more than the expected number of Charged Moves, very little room to accommodate missed dodges, or an inconvenient Notification to get onto the screen, etc.
It's possible to Duo a Ttar with that line up - obviously, we've seen it done. But never make the mistake of thinking it's "easy". Duoing an Absol is Easy. Duoing a Ttar challenging, but due to the double weakness to Fighting, it's possible.
You are severely overestimating how hard Tyranitar is to duo. It's possible in neutral weather with Machamps in the low 30s and OP has 4 maxed and 2 maxed Hariyamas, a super strong team by any account. Heck my team was worse when I did it the first time and so was the other person's. Against most movesets OP's team won't even have to dodge.