1400HP Twin Turbo R8 KART Goes Roll Racing vs. GTR VIPER & More! Underground Racing Drag & Track by turboandstance - December 31, 2021December 31, 2021 What better way to save a wrecked supercar…. tearing it down and making it a giant go kart. Better yet…. make sure it has a built drivetrain and twin turbos cranking out 1400hp! Was as it faces off with a BL1300X GT-R, a Dallas Performance 2020 R8, and a Calvo Motorsports Twin Turbo Viper. Leave a comment