Good for your buddy man but you should tell him next time he races that Z1 Turbo to run a little longer cause it will become a small dot on the horizon. My buddy has one and I can take him till 80mph or so, he said I jump a sled length instantly, but at 80 he goes by like a freight train and it simply doesn't stop pulling. He has seen 120mph and it is still pulling no kidding, Arctic Cat advertises it as the worlds fastest production snowmobile for a reason and I believe it. Once that turbo spools up and it gains traction it is a rocket. I still think my Nytro over achieved since it is about 35hp less and I weigh 100 # more, it is damn fast for a 600, 700, or even a 800 for that matter, definately holds its own, just doesn't hve the top end like that cat.
