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Ski Doo vs Polaris 850

51K views 188 replies 78 participants last post by  BIG JOHN  
#1 ·
The big question that no one seems to be talking about: How are we going to do against the XC 850 when we line them up next winter? I see vids on Hardcore of mountain versions running against each other but nothing trail oriented yet.
 
#4 · (Edited by Moderator)
We're having fun now pointing out the little Poo is just an 840, not a real 850 like the Big Boys run.

We need to have our fun now because I'm thinking when they actually hit snow the little 840 might take the big 850 to school. :sad_old:

Poo does a nice job getting power to the ground.

With that said, it seems some 850s run a lot stronger than some others. I know mine is a runner, I read some on here that aren't. I'm seeing open field speeds on mine some aren't seeing on an all out speed run. I hope my '19 is as good as my '18 has been.
 
#6 · (Edited by Moderator)
^^^ My belt temps are just warm, no matter how hard it's ridden. I've done nothing for cooling either - all of the insulation is still in the guard. That makes me assume mine is in the sweet spot on the specs.
With any luck all the '19s will be as good.
 
#12 ·
It's interesting to me that we are focused on which is going to be faster, the Poo 840 or the SD 850?

In the end, top speed, they both lose to the YamiCat for the King of the Lake title.

I never see top speed on the trails so what is important to me is the handling in the twisties and reliability.

The best sled to me is the one that gets me home at night.
 
#13 ·
It's interesting to me that we are focused on which is going to be faster, the Poo 840 or the SD 850?

In the end, top speed, they both lose to the YamiCat for the King of the Lake title.

I never see top speed on the trails so what is important to me is the handling in the twisties and reliability.

The best sled to me is the one that gets me home at night.
I totally agree. I loved my 850 XRS when it was running, but after almost a month at the dealer and the season coming to an end Im exploring other options as Ski-Doo couldnt pass the durability test. My first Doo and probably my last...
 
#14 ·
That sucks a month is a long time in our short winters. The poos were trading wins at 50cc lower so i think we will be getting spanked unfortunetly.

I am sure ski doo will bring the mach z back to be king one day if the poos and yamacats are trumping them.
 
#15 ·
That sucks a month is a long time in our short winters. The poos were trading wins at 50cc lower so i think we will be getting spanked unfortunetly.

I am sure ski doo will bring the mach z back to be king one day if the poos and yamacats are trumping them.
Hopefully Ski Doo will tweak the ECU a little every year like they did with the 800 etec. I think they could turn the 850 up anytime they want to compete with anything. Unfortunately you will have to pay for it with a new sled. Maybe the 2019's will have a hotter set up? Or as soon as they get the belt/clutch heat issue figured out they will turn it up.
 
#16 ·
Seriously considering ordering an 850 Poo. My 850 gade is still waiting for a new power plant. Almost 4 weeks, not exactly feeling the Doo...
You are unfortunately in a very small minority with your 850 down. I would suggest you consider ordering another one. I and many people I know, plus many who never post on this forum are extremely happy with their 850 motors.

Sent from my iPad using Tapatalk
 
#20 ·
You are unfortunately in a very small minority with your 850 down. I would suggest you consider ordering another one. I and many people I know, plus many who never post on this forum are extremely happy with their 850 motors.

Sent from my iPad using Tapatalk
Agree, I have a few friends that have had week to two week stays but that's on 17s. I've also haven't seen a ton on the trails like I thought I would. I've seen more polaris than 850s. Yeah lots out there just where I've been riding this year.
 
#21 ·
Something to remember, I've been sledding for 40 years have owned at least 50 sleds (skidoos), what I have noticed when Polaris debuts a new sled at the end of a season and it is reported to be so quick or fast there are a lot of disappointed riders on these sleds the following season. It has been suggested that these sleds-motors are ringers, on the production sled the motor is tuned down for reliability.

Just my experienced observation.
 
#23 · (Edited by Moderator)
Something to remember, I've been sledding for 40 years have owned at least 50 sleds (skidoos), what I have noticed when Polaris debuts a new sled at the end of a season and it is reported to be so quick or fast there are a lot of disappointed riders on these sleds the following season. It has been suggested that these sleds-motors are ringers, on the production sled the motor is tuned down for reliability.

Just my experienced observation.
ski-doo has done the same for many years... THe 10.5 etec was the same. Formula III... THere were others... THey all did it.. I also think the 600R maybe the same as 10.5 etec... Time will tell.
 
#24 ·
Something to remember, I've been sledding for 40 years have owned at least 50 sleds (skidoos), what I have noticed when Polaris debuts a new sled at the end of a season and it is reported to be so quick or fast there are a lot of disappointed riders on these sleds the following season. It has been suggested that these sleds-motors are ringers, on the production sled the motor is tuned down for reliability.

Just my experienced observation.
Have to whole heartedly agree. Many pre-production sleds are juiced a little more than the production runs will be. It creates hype which creates sales. Do not expect your production sled to be as strong as the pre-season models. Only next season will tell for sure. There are so many variables involved when racing with similar HP sleds. Weight of rider. luck of the draw with a stronger running production sled, rider reaction time, spot on clutching and traction. Most likely there will be many Polaris 850's beating Doo 850's and there will be many Doo 850's beating Polaris 850's, chances are they will be that close with stock production sleds. I don't do alot of drag racing but my 2015 Doo did not have to hang its head when going against some new Polaris 800's. Polaris does a very good job of getting HP to the track. The big question will be not just performance but how much gas this new 850 guzzles, Polaris is also noted for low gas mileage.
 
#25 ·
Something to remember, I've been sledding for 40 years have owned at least 50 sleds (skidoos), what I have noticed when Polaris debuts a new sled at the end of a season and it is reported to be so quick or fast there are a lot of disappointed riders on these sleds the following season. It has been suggested that these sleds-motors are ringers, on the production sled the motor is tuned down for reliability.

Just my experienced observation.
97 xc700 was a rocket like the early release. So not always true.

My 10.5 xp was a blast to own. So I'll by another early release any day
 
#26 ·
mid seasons seem to not have long warrantees available, which is probably why they're cranked up. The production Poo will have a 4 year warranty so I'm gonna guess its gonna have a good safety margin built in and will be fead a heavy dose of oil and gas. Even doo seemed to secretly crank up the oil and fuel usage when these long 3-4 year warranties became the norm...

The huge cooling fins thats suppose to be on the 19 doo clutches will help cooling, but isn't gonna help extra performance with the extra drag....time will tell

Dan