AmSnow.com is now SnoWest.com
The new Cleanfire liquid twin 850 Patriot 3DS motor will be manufactured in the US at the Polaris Osceola plant which is good news for folks here in the states. The foundation for the motor was laid several years ago and Polaris engineers were given a blank slate. This was long before the Ski-Doo 850 was released and Polaris reps told us they simply wanted to make a durable, reliable motor with great power-to-weight ratio. The “flickability” was key and there is little commonality with other Polaris motors. The 850 is a Snow Check option, and you can choose your sled, color, options and make yourself an exclusive sled, uniquely yours. After 25 years of Liberty engines including the 800 H.O. “giant killer,” Polaris has learned how to make lighter sleds with positive inertia that are easily maneuvered. The new 850 is said to have a 7% better power-to-weight ratio and 9% better acceleration than any motor in this class … that’s bold talk!
The new 850 will be available across all Snowcheck model lines including the RMK, SKS, Switchback, Rush, and Indy. What really blew our hair back was the announcement of a standard four-year warranty with this motor. Polaris is REALLY standing behind this motor!
In the RMK deep-snow line of sleds, the 850 is said to give instant lift, have low inertia, and the best power-to-weight ratio in the industry. It is by far the most powerful snow engine Polaris has ever built, and is said to have the best throttle response as well.
Since this is basically an all new motor, then naturally most everything on it is going to be new. Highlights include a new piston, ability to have max electrical power at idle/low rpm, and much more. Basically the only things that are the same are the water and detonation temperature sensors and the spark plugs.