Hmmm. A new FJ thread, Nice. I too have a FJ that is no 120 mph plane but chases down strykers quite often. Will have to track down a picture of it but can give the setup I use. No special mods save for the Packing tape underneath for non-grass landings.

Motor: Stryker "C" 1880Kv
ESC: OEMRC 40A LIPO Shield with switching BEC.
Servos: 2 HS-55's (will be replaced eventually by HS-65's)
Batteries: Loong Max 2250 mah 3s 20C and 4s 25C

Jason