You may remember the news that Norton was preparing an entry into this years Isle of Man TT. Visordown has caught up with the British team at Donington Park recently, and has posted a video of the Norton team testing the rotary motor powered NRV588, and running it on their dyno. The bike sounds vicious, and the glowing exhaust pipes, menacing. It won’t be long now until we can see the fruits of Norton’s labor. Watch the video after the jump.