The problem with the 900 and 1000s in the past were that they over built them and made them too heavy. When the aftermarket can bolt 12-1300 big bore kits on them and race gas turbos running in the high teens for boost pressure (or both in some cases) making 250+hp on an engine that was 165 from the factory and they survive... Technology is letting manufacturers get more power per cc reliably than they used to.
I wouldn't touch a new Polaris motor with a 10' pole the first year, but I think they are on the right track going bigger while keeping the same size engine and lightening the rotating assembly.
I wouldn't touch a new Polaris motor with a 10' pole the first year, but I think they are on the right track going bigger while keeping the same size engine and lightening the rotating assembly.
Some do, but it gets pretty expensive. You're looking at $4,000 by the time its all said and done for a full meal deal big bore. With the power these engines produce per displacement they can get a lot more temperamental on tuning than automotive 4 strokes. I feel like my big bore 900 running just shy of 200hp at sea level is an awesome place to be for a mountain sled powerplant. I've never really felt like I needed more power with it and I can hold it open when it's deep and get around really well. Plus it's still lightweight. My supercharger is pretty fun at times, but without being in deep snow where you can put that power to work it's too much in a lot of situations. Especially with the low snow we have this year. I think I'm parking it for now in favor of the 900 unless some big spring storms show up.Tell me why guys don't do a little hot rodding on their sleds like cars? 50 cc's is hardly a thing in the engine world right? A little head work a dished piston punch the cylinders 30 and your there?? Now iam sure guys can by a "hot tune" for their fuel injection and voila "big bore" ??? I still can't believe it's a thing really cause in the car world that's just a freshn up not a big bore!?? Don't hear guys talking about forged lightweight cranks or cool billett flowed heads and flywheels balanced and lightened yada yada ....seems like the real advancements are chassis designs but honestly as a new rider who wants to be deep in the backcountry, nothing more important to me than not breaking down! So iam perplexed by the idea that you can have both but iam old so?? I remember blowing up brand new engines just trying to do a turbo with a carb lol.