Ballistic 550 voltage ratings?
 

Are the ballistic 550 motors capable of 4s operation? Have a 6.5 on 3s but would like to try a 8.5 (2500kv) on 4s in my scrt10 for racing and have a long running/low temp setup.

essentialy these are the same motors as the hv series just the ballistics are rebuildable. The HV 4.5 was designed to be run on up to 4s so I see no reason why an 8.5 couldn't

With our Ballistic 550s, you can use 4S on 6.5 and higher winds:

Ballistic 550 Brushless Motors

Here are all the winds we offer in our B-A-B 550 program:

Build-A-Ballistic™ 550