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Track Rewind Seat Engine Muffler used parts
The first actual liquid-cooled, production snowmobile was the 1972 Brut LC44.
Brutanza Engineering Inc., of Brooten, Minnesota, was established in 1971 by Gerry Reese, Mike Baker and Marley Duclo who were engineers and racers from Polaris. Brutanza put together an amazing machine that was ahead of its time and incorporated a lot of truly innovative engineering. Like the others, the first Brut was radiator-cooled.
The boys at Brut quickly discovered that when the machine had to idle for extended periods, such as on starting lines at race events, the engine could overheat. Midway through the first season, Bruts showed up at races with finned copper tubes on the insides of the track tunnel through which the engine coolant was circulated. This evolved into aluminum extrusions that were mounted inside the tunnel. Brut patented the heat exchanger concept and the industry still uses it today in many variations.