snowmobile engine essays

snowmobile engine essays The Technology Of A Snowmobile Engine If you study and look at the history of a snowmobile engine, it has improved in many ways. I feel they have improved in two major ways. Number one being in performance, and number two theyre more environmentally safe. In order for you to understand how this has happened, I will explain to you the engine of a snowmobile. A snowmobile engine is called a 2-cycle engine. This means unlike a 4-cycle which you would find in a car, 2-cycle engines fire every time the piston reaches ( top dead center ) T.D.C. Now if you look at a 4-cycle, or car engine it only fires every other time the piston reaches T.D.C. This advantage gives snowmobiles a great If you stop and take a look at a twin 600cc two cycle, it produces about 110 horsepower. Now if you take 600cc and convert it to cubic inches you get 36.6ci providing 110 horsepower. Further more we can compare that to a car and see the advantage. If you take a V8 305 cubic inches, you would figure out that it only has about 240 horsepower for all those cubic inches, and all that extra whight. Thats how snowmobiles can be so powerful, but still so small and light weight. Unfortunately over the years people discovered a problem. Environmentalist thought if the piston fired every time it reached T.D.C., it had to be releasing gas and oil through the exhaust and into our atmosphere. This posed a problem for the snowmobile industry. But the companies researched and came up with three things. One is fuel injection so only the right amount of fuel is let in to the engine. This allows it to burn all the fuel, but is not very good for performance enthusiasts. So for performance machines they went back to carburetors, but cleaned the engines up two different ways. They started ...