Answer
Aug 04, 2022 - 06:17 PM
Yes, Polaris still makes five different 4-stroke snowmobiles ( Indy XC, Indy Adventure, Indy Adventure X2, Voyager, and Titan), all using the same ProStar S4 engine, a twin-cylinder 998cc engine producing around 90hp.
Polaris recently carried over the ProStar S4 from its off-road vehicles, so it wasn't initially designed for snowmobiles. Still, it received a thorough redesign, including a dry sump crankcase to lower the center of gravity and a lot of differences in materials. Nonetheless, Polaris' most popular engines are still two-strokes, including one of the first turbocharged ones — which goes a long way in demonstrating its engineering skills, considering it's almost impossible to boost a 2-stroke.
Polaris recently carried over the ProStar S4 from its off-road vehicles, so it wasn't initially designed for snowmobiles. Still, it received a thorough redesign, including a dry sump crankcase to lower the center of gravity and a lot of differences in materials. Nonetheless, Polaris' most popular engines are still two-strokes, including one of the first turbocharged ones — which goes a long way in demonstrating its engineering skills, considering it's almost impossible to boost a 2-stroke.
