How fast is a 400cc go-kart?
On average, a 400cc go-kart can achieve speeds ranging from 40 to 60 miles per hour (mph) on a standard racing track. However, some high-performance go-karts with 400cc engines can reach speeds exceeding 60 mph, especially in professional racing circuits or modified setups. If you have an old go kart you need to restore, you can simply buy a predator 212cc engine (amazon link) and breath new life into an old go kart. This engine is a performer right out of the box, and should get your go kart running anywhere from 20 mph all the way up to 35mph in its stock form.
Do heavier people go slower in go-karts?
Weight is one of the most important elements of go karting as it can have an impact on all aspects of your performance, from how fast your go kart goes to whether you spin out on corners. The lighter the total weight of the go kart, the easier it is to accelerate but the harder it is to keep control of. While there is no go karting weight limit, heavier drivers definitely do need to put in a little extra to match the lap times of their lighter counterparts. Heavier drivers should: Drive as smoothly as possible. Avoid sliding.