hi all just after some info really. i have a not the worlds best nitro car i know (Smartech) was given to me so not complaining. the thing is the engine is a gonna and i have bought a nitro star .15 to use with the car, the only thing is i dont know how to get the engine to drive cogs on the smartech body. what parts would i need to connect the engine to the drive cogs? sorry i am fairly new to all this. any help would be much appreciated. many thanks