The Storm 70 is not recommended for 3s setup according to the instructions that come with the unit. 4130 kv...Max amps 125...1800 watts...up to 4.3 lbs. of thrust...54,000 rpm...4 to 5 cell lipo.

Recommendations from instruction sheet included with motor:
CC 80 Amp for 4s or CC 125 Amp for 5s.
Batteries 25-40c 3300mah-4000mah lipo

I'm not questioning your calculations...just giving you the info from HM instructions included with motor.