Short story - I have a 20' 850 and a buddy has a 20' 800, both 155 tracks. Yesterday was a good pow day and I rode his sled for a bit, I couldn't really notice any difference in power. I wasn't going to say anything but he said the same thing.
My sled seems to be running strong, he thought it's running slightly rich; but he's pretty easy on the throttle.
My sled as an SLP quiet can and I added the Polaris gear down kit this year. His sled has an SPI can.
Thoughts on why neither one of us noticed any difference? My guess is the 850 really shines when you need that low end, I don't want to get stuck power. And neither one of us tested this aspect.
My sled seems to be running strong, he thought it's running slightly rich; but he's pretty easy on the throttle.
My sled as an SLP quiet can and I added the Polaris gear down kit this year. His sled has an SPI can.
Thoughts on why neither one of us noticed any difference? My guess is the 850 really shines when you need that low end, I don't want to get stuck power. And neither one of us tested this aspect.