• Feb 19, 2009
Click above to enlarge

On the surface, it would be difficult to find two machines that share less in common than the 2009 Porsche 911 and the latest Ski-Doo MX Z X snowmobile. But dig a little deeper (into their engine bays) and things start to show a few similarities, most notably the use of direct injection. After taking a little detour explaining how direct injection came about in Germany during World War II, the scribes at Winding Road put the two DI machines up against each other for some impromptu non-instrumented drag racing.

In one lane, we have the twin-cylinder, two-stroke engine in the Ski-Doo that displaces 600cc and sends 120 horsepower to the single studded rear track. Across the aisle sits a 3.8-liter flat-six engine from Porsche that puts out 385 raging ponies and sends power to all four wheels. Surprisingly, the two heavyweights proved to be evenly matched in straight-line acceleration when each was placed in its proper element. Read the whole story here.

[Source: Winding Road]


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    • 1 Second Ago
  • 10 Comments
      • 5 Years Ago
      Cool article. Great history of fuel delivery.
      • 5 Years Ago
      F-that site and it resizing my browser window.
      • 5 Years Ago
      reply @ Paul
      • 5 Years Ago
      I suck today.
      • 5 Years Ago
      That all depends. Sleds are kinda like motorcycles. Some of the
      racing sleds peak around 1000cc. The 1200+cc ones are often big
      2-person cruisers. But that really depends on the brand and the
      model.

      Key thing to remember is that snowmobiles are getting FAST. Right
      now turbocharging and intercooling is making a big breakthrough.

      Arctic cat has a turbo 4-stroke 1000cc with 177hp. Yamaha has one
      with 150hp. Those are just 2 examples off the top of my head. I'm sure there are more.

      Won't be long until they combine DI + turbocharging
        • 5 Years Ago
        What Allen said makes a bit of sense.

        Two big pistons providing the torque vs. 3 that rev high.


        @Paul,

        Didn't mean to preach to the choir. Its hard to tell who sleds on
        ABG. :-P
        • 5 Years Ago
        The 800 twin will win from 0-60 due to it having more torque. The 750 triple has more power in the upper RPM range and probably revs to a higher RPM as well.