Supercharge the mower, 1) remove the governor. 2) Seal the connections so no air is leaking, from the fan which directs the air to the air filter. (more air = mow power) 3) Install some kind of valve, so u can open the airflow.. (so it does not overheat). 4) to see if it actually works you could get a tachometer which connects to your sparkplug. This would allow you to have a boost button. on top of that do the normal racing stuff, change pully ratio, weld dif... enjoy your project :P keep it up.
Seeing you wow at a scooter that goes 12 mph honestly makes sense. Mine goes 34-35 and was honestly so scary when I first rode it. I have a permanent scar because I crashed at 20 😅. They're no joke.
For that mower you asking us to give ideas for, i think a race mower than go to one of the races in nb quebec ns or even here in pei, would make an awesome video. I wish i could send you videos on my race mower build.
