A 5s and the 2200 would give you just over 40k. I've always been told to aim for 35k so since that is what most nitro engines put out. On 4s it would be like a stock engine and on 5s it would be like a decent or modded engine and on 6s it would be stupid powerful. It's better to have a little less than to much when it comes to stuff like this IMO