So ever since i saw one of these rc go-karts I've wanted to do this. Is it competitive in any way at all? Of course not, but it's fun. I'll continue to update as the build evolves but this is what I have so far.
I'm running a Gens Ace battery from Hobby Partz. man I love these things! I want to try the bigger 1800mAh battery but the run time on the 1550mAh has been fine so I havent bothered.
You have to mod this car straight out of the box. When the wheel is turn full lock the wheel rubs on the body and the lower arm. A dremel and endpoints will fix this and even with endpoints it still turns well but it could be better. You may be able to get away with not adjusting the arms but if you don't set the endpoints your car will understeer horribly.
The suspension also comes with tons of positive camber in the front! I haven't come up with a solution to this yet but I'm working on it.
I dont have a picture but i did fill the sealed rear diff with Associated 10K oil to help prevent too much understeer.
Next I modified the seat for the Toad plush doll I got at the local Fry's Electronics.
Finally I mounted the doll! I will be painting the body in the style of Toad's kart in Mario Kart Wii but I need to figure out how I want to accomplish that.