darkseacret,

If I were you I wouldn't change that receiver unless I was going to 2.4GHz.

Your motor is capable of a lot more power, BUT your battery and ESC are the bottle necks holding you back.

So If I were you I would change the ESC instead of the receiver.

Power upgrade note: Change the stock prop to APC E 6X5.5 $2.13 and keep your eye on the battery temp depending on outside temperatures in your area. That will increase your level flight (no wind) speed to a solid 72MPH if not a little more. F-27C owners have reported success with this prop as a first upgrade. It’ll work with stock ESC and battery.

Have fun,
Gryphon