RE: Unofficial Nitro Hammer Thread
I haven't worked on a NH since they first came out so I'm digging through the fog in my head.
There's a ton of reading but there is a Nitro Hammer thread somewhere in here, use hte search at the bottom of the screen to dig it up if you need to.
From what I remember, the biggest prop that you can put on the stock shaft is an Octura X-435 otherwise it'll hit the bottom. The boat is what it is and that's it. Simply put, it's a boat for beginners and not made to be a speed demon.
How to fit the tank in, I don't remember so if you find the NH thread that should give you some insight.