RE: motor and prop questions
if you post a picture someone may be able to identify the motor for you. do you know if its brushed or brushless?
for more power from the cub you can go with an 11 inch prop, but you will get less flight time. another option is either an 8 cell or lipo battery, the higher voltage will give you alot more power then the 11 inch prop will give you plus if you go lipo you might lose some alw.