As a rule of thumb, the liquid-cooled models always offered better performance and higher top speeds compared to their fan-cooled counterparts. These sleds were available with fan as well as liquid-cooled engines. Many of the vintage Polaris snowmobiles were manufactured with 340-440cc, 2-cylinder, 2-stroke power sources. The Top Speed of the Polaris 340-440 Snowmobiles Would you like to check out a 120cc snowmobile drag race? Don’t miss this video! What’s more, with some modifications you can even reach 40-45 mph! Moreover, its performance is artificially limited by a unit known as the “governor.” Bypassing this limiter allows this small sled to reach a top speed of 15-20 mph. If this low speed surprises you, keep in mind that it’s a youth model powered by a 121cc, 1-cylinder, fan-cooled engine. The top speed of the Polaris 120 Indy is as low as 6-8 mph. Let’s move on and take a closer look at each category’s engine power! Polaris 120 Snowmobile Top Speed This is because the inaccuracy of snowmobile speedometers is legendary, which is why they are often called “dream-o-meters”!Ĭonsequently, if you want to check the actual top speed of a Polaris snowmobile, you will need a GPS or radar. This means the actual numbers are typically 5-10% lower! Are you wondering why? However, they can give you a good idea about the average top speed of each category of sled.Īdditionally, keep in mind that these top speed numbers were read from speedometers.

fan-cooled)Īs you can see, many of these factors can vary from one day to the next! Thus, the numbers provided in this article are for general information only.

We’ve compiled the most important factors into this list: Keep in mind that the available speed on a Polaris snowmobile depends on many factors. This chart is for informational purposes only! 9.1 Related Articles Polaris Snowmobile Top Speed Chart Model

Polaris indy 440 engine