25-40
nitrous and a bigger engine
about 25-30 mph
With magic, 2hundred miles per hour
Max Speed 37-39 mph... that's pretty fast for a go-cart.
fast as it needs to be.
The engine will run to the limits of it rpm (revolutions per minute). The go-cart will travel as fast as the gearing and torque of the motor allows. Theoretically, you could get a nitrous kit for an 8hp lawn mower engine and do a one-time burst to like 50 HP and maybe 100 mph, before the engine exploded and your go-cart disintegrated. One of my sons manged to get his go-cat up to 66 miles per hour using a 12hp Tecumseh motor from an old lawn tractor. Scary, very scary, but very fast. The neighbors called the police.
A 6.5hp engine on a normal sized go cart will usually give you about 60-70kmh depending on the riding terrain.
As fast as it was designed to go. We just know it has 60 horsepower... doesn't tell us the weight of the vehicle, the torque output of the engine, how the drivetrain is geared, etc.
15 25
Dude it is an econobox not a racecar. Stickers and a shopping cart handle don't make it fast. About as fast as a shopping cart can go downhill
about 60 to 80 mph