Ok, I explain the race now because I couldn't record the movie that day. At start, the JTD is really better. JTD advances 30 meters to TS in a few of seconds. But then, the distance becomes equal. When the TS is up 4000rpm can battle to JTD. In all cases, JTD120hp is more powerfull than TS105hp. But the sound of TS is awesome!!!