Originally Posted by
Driver86
Well, I ordered the 25A ESC, the Tacon 4200kv motor, program card and a 2200mah 7.4V Li-Po pack $55 total with shipping

Should make my RC18b/t fly. I hope these are as decent as people say they are. I ordered from HobbyPartz not Hobby King so I sould get it in a week instead of 3 months.
Not to rain on your parade, but perhaps you should lower your expectations as I used to run 3 brushless RC18 variants, from my experience one would need a 3S on a 4200kv motor to make an RC18 really fast where it's just near uncontrollable.
4200Kv on 2S would be significantly faster than stock but nowhere near a 6000kv or even a 5400kv motor.