Board Thread:Naruto Discussions/@comment-25498052-20141004162612/@comment-24649454-20141103113458

Sasuke has shown on numerous occasions in part 1 that even without activating his sharingan he could own Naruto's ass as long as Kurama wasn't helping him. Also, Naruto has high stamina, endurance and chakra from being an Uzumaki so if you take away Sasuke's sharingan you have to take away all of Naruto's best traits.