motor opinions for ten t

[magman]

I am thinking of getting a new motor esc combo for my Ten T and giving my daughter my Tekin 2650kv motor w/a MMP. So, for my Ten T I am looking at the RX8 ( love the sensored set ups....sorry castle ) w/another 2650 T8 motor or a Tekin SC4x 3400kv. I will only run my set up on 3s so the SC4x would work ( the 3400kv to be specific). I know nothing of the Sc4x motors so any input would be great. I don't want to get new 4s batts to make the 2650 motor I have now come alive..as I have a ton of 3s batts now....so what I am looking for is a little more pop out of my ten t on 3s.

Hope I was clear