Reviving an old, cheap, GoCart.... Maybe?

[_paralyzed_]

It's more work than it is worth. Those go-carts are cheap and barely handle the power and speed that comes stock.

It's like putting a brushless system in a radio shack r-c. You can make it work, but it will just tear things apart.

Honestly, you are better off just spending $2-300 on a better go-kart.

And without an LVC you will quickly blow any single lipo you use.

I don't like to discourage projects, you just have a lot you haven't considered.