Surge crusher vs Relentless rc boat

A quick sprint of the RC boat Surge crusher 4s vs Quanum Relentless
Surge crusher/ inrunner brushless motor- (stock) running on 4S
Quanum Relentless/ outrunner brushless motor (stock) running on 3S

[@chillingdude444]

Put the Relentless 6s.

[@greco_sti_s2k]

It would work but probably would not last since, hull and motor mount are all plastic ABS, flex cable is to thin.