How fast will a 16hp go cart go?

How ever fast it was to go plus adding nitrous and sick tires helps too! I prefer a high class jet engine for mine but it's up to you

about 60-70 mph

200cc four stroke single engined karts have a top speed of around 60-70 mph. 200cc two strokes or twin-engined four strokes will be considerably faster so it depends what sort of kart you mean.

Max Speed 37-39 mph... that's pretty fast for a go-cart.

250cc Superkarts have been clocked at 156 mph by the Daytona City Police using a calibrated radar gun. This was at the Speedway during a World Karting Association Speedweek.Not official of course....