15.7-liter, tri-turbo engine built for a speedboat, but never used, by high-performance engine builder Tyson Garvin. And he just put it on a dyno.

We’re finally putting the 125cc turbo go-kart on the dyno! Watch how much power it ... interview — and what to do if they're brought up 'Highly narcissistic' people love to say these 7 ...