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Interesting video - certainly we all care about real world weights and power to weight ratio. However, there is something yamaha is forgetting. Some dudes (like me) are weak little keyboard pushers. For some people (like me, I'm not that strong) gross total weight is about 3 times as important as power to weight ratio.
This is where Yamaha just kills me. For the life of me, I can't figure out why they can't build something along these same lines, but with a smaller engine, and therefore a lighter sled. At elevation the T-Nytro has almost double the hp as the pro. But guess what? The pro that has less than 110 hp at 9,000 feet has enough for me to have fun!!
So make a phazer with just a 500CC 4-stroke that will put out 115 hp at elevation with a pump gas turbo (or preferably super) and make it weigh 550 pounds when I leave the parking lot with my gas and oil tank full. I WILL BUY THAT SLED!!!!!!! Yammi just won't build it.
Too funny.
The guys in the Pro forum are all going nuts over this video.
Poor Pro riders are just apoplectic over the weight and power issues of their baby in the real world. Just makes me laugh to see how worked up they all get when anything even marginally threatens their world view.
http://www.snowest.com/forum/showthread.php?t=392917
I think it was legite but the way it was done is biased if that makes any sense. There was a turbo on it because it won't compete but that was minor. My biggest gripe was they put electric start on the pro and xm to lessen the difference because the 4 has to have it. That was the exact reason and not because that was the only sleds they could get or because people love electric start. It isn't even a gripe. people buy 4's for the reasons they buy them and the same for the 2 stroke. Obviously the cat or yamaha has less snow but I am not sold that the weight from it, and where it is, makes that much difference. It is front end weight and that is why I sold my t-nytro. They have come a long ways but it is still apples to oranges. Christopher, you are going to have a tough choice because I like all of them. I would probably favor the blue and white.
The whole thing just makes me LAUGH though.You are no different about Yamaha.
Hyperbola to be sure my friend.22 replies in the whole thread in the Polaris section......doesn't seem like a huge melt down to me.
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I want to see what this picture says when the Yamaha is stock.............![]()
The weight gain claims are ridiculous. I rarely ride above 4k' in AK, our mountains start at sea level and can get 500+" at sea level. The majority of my riding is around 2K'. So HP loss at elevation is minor for me.
Obviously a turbo viper has no advantages for people in my situation, especially with the new axys capable of 170hp with just an SLP pipe and a dry weight of 395lbs after the exhaust install.
Stupidest video ever. Not apples to apples at all. First off the pro was obviously carrying more snow. But why so much on the skis. ( because it was put there). I agree it carries more snow but not to the extent you are showing. Plus, you top them up with fuel and fail to mention the pro has a 1.5 gallon bigger tank and will go much further than the 180 kit on a yami. You also compare power to weight with a turbo. Why don't the others have turbos. I was a yami guy for years and still like them but falling on the artic cat bandwagon with this vid is bull****. Christopher as far as I'm concerned you have no credabilty you only see in one direction.
This is legit.
But there are a few background notes that I find important to point out:
1. Both the Pro and the Summit were equipped with electric start.
That's why the wet weights are higher than what we have measured in our own testing.
The Viper is electric start, too...
2. The Summit was an SP, not an X.
3. The Viper 153 was not a Float-equipped SE version.
It was the base model with coil spring shocks.
3. The snow conditions on the day of this ride were what I would define as March snow: dense powder up high and heavy wet down low. And the tree weights were done at a lower elevation where the snow was heavier. But all three sleds were ridden for a couple hours, filled up, ridden around again and driven right to the hanging scale. In my opinion, that's why the weights on the Pro and Summit are higher than what the Cat video showed.
4. I was shocked.
As stated in the video, it still feels like you're riding a 4-stroke and it still feels heavier in the snow, but with the 180 boost kit, it was light enough to feel fun. Wasn't expecting that.
5. The results have already been pointed out to some extent in Cat's tree-weight video.
The ProClimb chassis just doesn't carry as much weight in snow.
6. It doesn't mean the Pro and Summit suddenly suck (although social media will probably take it that way anyway).
All I take it to mean is that Yamaha has made big progress toward having a 4-stroke mountain sled that is competitive with the 8s and is actually fun to ride. It is fun to ride.
That's my take. Read into it however you want.
-Ryan Harris
Here's some iphone shots I took on that ride before the weigh in up higher on the mountain.
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Flame on...