Can an SSN outrun an incoming torpedo?

Does an SSN have a better chance than an SSK of outrunning a torpedo?

Possibly, but it depends on the torpedo; nuclear propulsion alone does not guarantee that the submarine can escape.

No universal speed rule settles the comparison. An SSN may have a better chance of running from an incoming weapon, but the decisive variable is which torpedo is pursuing it. The joking Royal Navy aside points back to the earlier discussion of very fast British torpedoes developed in response to fast submarine targets. The result depends on the actual weapon-target pair, and nuclear propulsion does not guarantee escape.