[sm=drowning.gif] [sm=drowning.gif]

Well I finally got to run my nitro hammer with the upgraded Octura prop and the top speed actually decreased...A bit quicker out of the hole but top end it it lost about 3 mph...
Needless to say I tried tuning a little bit and was unable to achieve any more performance than the original ....My Question is has anyone upgraded the motor? I am thinking about the
Megatech m16...Or possibly the .21...Both are pull start..Any suggestions?

Also does anyone know what the hp specs. are on the original .15 motor.