2018 Polaris Assault SB 800, 2018 Polaris SB Pro S 800, 2015 Polaris Rush ProS 600
In the video Erik is just talking about the mountain lineup, given his location I doubt he even sells any trail sleds. Lennstang though, also mentioned in his 2022 review that the 850's ran stronger than the 21's when lined up.It's hard to say from the video because that information is confusing. I also noted on the Turbo's the ECU looks like its mounted in a new location? It sounds to me like the Boost gets a new flywheel and ECU. Does the N/A version or you guys are saying we already have it on the 21? Is the ECU on the 19-20 850 different?
Wonder why they went with an odd number so they wound up with a fractional number of degrees between sensor pulses? 20 would have made it 18 deg vs 17.14 deg for 21.They changed the flywheel to have 21 teeth on it from the previous 5. So the computer can now read the crankshaft position much higher resolution. Better starting and throttle response. 20% better response
This isn't old news, looks like they just unleashed part of the new MATRYX ECU capability in 21 by only updating the valve controls.Over 7 months ago, I went thru the differences and similarities of the Matryx chassis, and engines versus Axys sleds. If you look at the line for the ECU and the line for the VES Actuator, you can see they were identified then as being different in Matryx 850/650 verus My21 Axys 850. So, this is really old news.
It just appears that the fellow doing the video on the MY22 Matryx Mountain sleds, wasn't aware of what had already been done on the MY21 Matryx flatland sleds.
MATRYX Engine & Chassis parts specs & differences post#1
At this time the Online parts shows the same 4017455 flywheel and 4017454 stator used on MY20 850, and MY21-22 650 and 850.There is a change on the 2022 motors. Like I said flywheel has been changed for better starting and better run ability. It has higher resolution on reading the flywheel. 20% better response. The people that have rode the 2022s say it is a very noticeable difference.
Thanks Lenn exactly what I was hoping to read. These would be fantastic improvements if they can sharpen up the idle mixture a bit!Here's what I was told by Polaris: 850 has Lighter flywheel, improved power boosting regulator, and a new map. After spending quite a bit of seat time on a demo 2022 850 129 VR1, I can confirm that it's quicker than my 2021 850-137 VR1. Spools up quicker and accelerates hard. Very impressive top speeds of speedo indicated 115+ MPH. It did this consistently. It easily walked by my 2021 in a drag race. And mine was studded with real studs. The Demo unit I rode had the Ice Ripper track. Mine has the 1.5 Storm.