Neu 1512, 1.5d (3300Kv) on 4s in crt.5

I want to make a killer bashing crt.5 and i have a Neu 1512, 1.5d, a MMM V3 on the way, and presently, i have a TP 5000, 3s, but i want to go with 4s.

Do you think that this motor will do the job just fine on 4s or should i stay with 3s and put a bigger pinion???

I know that this motor pull alot of amps (135A) so i consider that run it on 4s will lower the temps and give me longer run time???

But i have a Neu 1509, 2.5d (2700Kv) too, maybe i'am better to put this 1509 on 4s in the little crt.5 and keep the 1512 on 3s in my slash??

Don't know what to do

Thank you!