Kaioken similar to 8 gates?

[Sennin of Logic]

Kaioken doesn't have a max tho #themoreyouknow

But that was the biggest limit Goku had access to that we've seen. For instance, using Kaioken X20 really hurt his body and weakened him. It's, in all likelihood, not that bigger.

 

[TheLastSensei]

Kai and 8 gates are equal. While you're alive. No one ever maxed out kaioken and we don't know it's full power. 8 gates max is 100x base and is known to kill the user

 

[madvictory]

Kaioken x8 = 8th Gate in Naruto.

 

[Tantalus Thief]

8 gates is cooler