careful with the losi box and stalling out the motor's.....i forsee bad things happening if u dont get thet heat gun....a hairdryer will work.....but not as well as a real heat gun will.....and make sure to set-up the box to the chassy before installing the motor....this will help in the long run to make sure the wheel isnt touching the chassy....what kind of battery's are u using ? i suggest using a BIG 12V like a car battery for the first couple times....rewiring the box with 12g deans and soldering all the connections will also help.