Rotax 600 EFI - 85HP Snowmobile engine - Ski-Doo (2024)

FAQs

Is the Rotax 600 EFI a good engine? ›

Proven Rotax reliability

The key power-producing and drive components of the 600 EFI snowmobiles are taken directly from the proven 600R E-TEC engine. Crankshaft technology and plasma coated cylinders extend engine life and improve efficiency. A pDrive clutch transfers power to the track.

The Rotax 600 ACE is the industry fuel economy leader at up to 28 mpg (8L /100km*). In-line EFI four-stroke twin with 60 hp and ultra‑low maintenance. Includes drive‑by‑wire intelligent Throttle Control (iTC) with three driving modes (Sport, Standard, ECO), Learning Key and finger throttle.

However, it must be noted both the volume of incoming fuel and air and the volume of spent exhaust gasses leaving the 600 EFI are dramatically reduced when compared to the 600R E-TEC. This is why the 600 Sport EFI delivers 85-hp and the 600R E-TEC produces 125-hp.

If the engine is over 12 years old and the crankshaft was not replaced or the seals changed you will need a overhaul. The 503 is a little different and doesn't have a big problem with the lower rod bearing. So I feel a 503 is good for 450 hours or 12 years.

Rotax engines are famous for their reliability and best-in-class power-to-weight ratio. Versatile, cost-efficient, and easy to use and maintain, Rotax engines have gained the trust of flight schools, home builders, and aircraft manufacturers alike.

The industry's fuel economy leader at up to 29 mpg (8 L/100km)* and extremely low maintenance.

The average speed for a snowmobile ranges between 95-120 miles per hour. Some snowmobiles can reach top speeds of 150 miles per hour, while, for racers, racing snowmobiles can reach 200 miles per hour. So, yes, a snowmobile can go 200 mph.

Those being, Rotax, IAME, and ROK. All are good, reliable engines, however, each of them has their own strengths and weaknesses as well advantages and disadvantages.

A snowmobile typically lasts between 5,000 and 20,000 miles, which could be 10-20 years depending on the brand and how it's been ridden and cared for. A 2 stroke snowmobile engine will last around 5,000-10,000 miles while with proper maintenance a 4 stroke will last longer, approximately 10,000-20,000 miles.

Some say they do a new piston every 20 hours, and after the third piston ( 60 hours ) a full rebuild.

How long do 600 ETEC engines last? ›

Do you ride a 4 stroke engine's durability or do you ride a snowmobile with a 4-stroke engine? If the only criteria one has for a good snowmobile is durability get a diesel! I would fully expect your 600 E-TEC with reasonable care and maintenance to last for 10,000 miles.

The Rotax 900 ACE engine delivers the best fuel economy. I can get about 340 kilometres per tank of gas. So if you're in the market for a new sled, do yourself a favour and take a serious look at the Ski-Doo snowmobiles with 900 ACE (Advanced Combustion Efficiency) engines.

The new engine raises the standards for 600cc engines with a 30% quicker response and 125 horsepower. It's still 5 HP more than its predecessor, the 600 H.O. e-tec who is often described as one of the best 600cc engine engines.

Low running costs, a best-in-class power-to-weight ratio, reliability, and responsive performance have earned Rotax aircraft engines the trust of over 250 aircraft manufacturers worldwide.

But with so many options to choose from, you will often hear drivers mention these three manufacturers. Those being, Rotax, IAME, and ROK. All are good, reliable engines, however, each of them has their own strengths and weaknesses as well advantages and disadvantages.

900ACE is simply a 63 hp machine at 10,000 ft. and a 600EFI is a 60 h.p. macine. The 900ACE is heavier, but it's also quieter and will last longer. The 600 EFI is light and cheaper.

Lower Emissions, EFI is more efficient on fuel, and it is burning cleaner as ratios are optimized. Less carbon footprint, same performance. Typically EFI equipped engines are around 25% more powerful than their carb-equipped counterparts.