850 163 3 inch...More transfer?

phatboy07 · Feb 24, 2019

I am currently running a new 850 163 3 inch, first long track sled for myself and am curious how to get more transfer out of the skid. I am not trying to make it a wheelie machine but I can barley get the skis up at all, it just seems like a very "planted" sled. Im 240 lb without gear, have the clicker shock option, I have tried to adjust the front track shock (increase spring tension, but within Polaris spec) and decrease rear shock spring tension only to a point it doesn't negatively effect ride...but she just wont hardly lift. Are there any other adjustments I should look at? Would a stiffer spring in the front be needed due to my weight? Or is the sled just designed to be this planted? No negative comments on handling otherwise...carving or sidehilling is confidence inspiring for a beginner in all honesty.

pfi572 · Feb 24, 2019

Limiter strap sucked up ?

Pink-Inc · Feb 24, 2019

phatboy07 said:
I am currently running a new 850 163 3 inch, first long track sled for myself and am curious how to get more transfer out of the skid. I am not trying to make it a wheelie machine but I can barley get the skis up at all, it just seems like a very "planted" sled. Im 240 lb without gear, have the clicker shock option, I have tried to adjust the front track shock (increase spring tension, but within Polaris spec) and decrease rear shock spring tension only to a point it doesn't negatively effect ride...but she just wont hardly lift. Are there any other adjustments I should look at? Would a stiffer spring in the front be needed due to my weight? Or is the sled just designed to be this planted? No negative comments on handling otherwise...carving or sidehilling is confidence inspiring for a beginner in all honesty.

You can adjust the shocks further than what you have already but you're ruining the handling of the sled. They're designed to stay flatter. If you want a wheelie machine pick up a Cat

phatboy07 · Feb 25, 2019

I mentioned Im not looking for a wheelie machine. A little ski lift to maybe clear an obstacle or crossing would be nice.

lilduke · Feb 25, 2019

Yeah a stiffer center spring would help a bit.
But probably just going to take some practice.
Should be able to wheelie it over backwards if you want to the way it is.

Stickyfingers · Feb 25, 2019

Check your belt deflection. Where the belt sits in the top of your secondary clutch. If your deflection is too loose you are sacrificing power in the low end. 240 lbs on a 3 inch track has probably broke your original belt in real good.

Teth-Air · Feb 25, 2019

phatboy07 said:
I mentioned Im not looking for a wheelie machine. A little ski lift to maybe clear an obstacle or crossing would be nice.

Clutching and (if quickdrive) lower gearing makes a huge difference for the lift.

phatboy07 · Feb 25, 2019

I check belt deflection every other ride, it has needed adjustment a few times but I have kept on top of it. The sled is factory 3 inch so no quickdrive, chaincase so I think the gearing is lower on this model if Im not mistaken. I will try to do a few more adjustments with the rear shocks.

Morty19 · Mar 1, 2019

Curious if you had any luck with those rear shock adjustments, I'm running the same machine.

phatboy07 · Mar 1, 2019

Have not been back out yet to try. I am going for a ride hopefully this week to specifically play around with shock adjustments...will be flat land but at least I can try and get some better feedback on the shock changes

Morty19 · Mar 21, 2019

Did you have any success getting that front end off the ground?

phatboy07 · Mar 21, 2019

I did not get he result I was looking for. I tightened up the front track shock and loosened off the rear track shock( just so it would bottom out every now and then). Marginal improvement at best. still very planted. This was in flat snow conditions of 2-3 ft of snow. I think I am going to see if any companies like IceAge will come out with 163 rail profiles to match the new KHOAS Polaris has coming out for 2020. Add the rails, longer swingarm, longer limiter strap, possibly longer shock for swing arm and see what the outcome will be. I may not like it or I might love it. As of now I do no see any way to get a better result without making the sleds ride suffer (in current stock form)

Stg2Suby · Mar 21, 2019

I'm not too familiar with Polaris and particularly not with the Axys. But didn't the previous Pro chassis have 2 mounting positions in the tunnel for the front skid mount? RMK came with the skid in the upper hole to keep the nose down, Assault skid was in the lower hole for more weight transfer? Considering all the work listed above it might be easier to mod the tunnel and lower the front of the skid a bit. Can't remember who makes it but I've seen a kit where you rivet these plates on that offer 5 different front skid mount positions to fine tune the amount of weight sitting on the center shock.

Frankenytro · Mar 23, 2019

Stg2Suby said:
I'm not too familiar with Polaris and particularly not with the Axys. But didn't the previous Pro chassis have 2 mounting positions in the tunnel for the front skid mount? RMK came with the skid in the upper hole to keep the nose down, Assault skid was in the lower hole for more weight transfer? Considering all the work listed above it might be easier to mod the tunnel and lower the front of the skid a bit. Can't remember who makes it but I've seen a kit where you rivet these plates on that offer 5 different front skid mount positions to fine tune the amount of weight sitting on the center shock.

https://crracingcanada.com/collecti...pension-adjuster-blocks?variant=5726734778396

takethebounce · Mar 23, 2019

Stg2Suby said:
I'm not too familiar with Polaris and particularly not with the Axys. But didn't the previous Pro chassis have 2 mounting positions in the tunnel for the front skid mount? RMK came with the skid in the upper hole to keep the nose down, Assault skid was in the lower hole for more weight transfer? Considering all the work listed above it might be easier to mod the tunnel and lower the front of the skid a bit. Can't remember who makes it but I've seen a kit where you rivet these plates on that offer 5 different front skid mount positions to fine tune the amount of weight sitting on the center shock.

The Khaos is basically what you described. It has the front arm mounted in the lower position with the Assault rail profile and a longer limiter to allow the front to drop out a little more.

My 163 3" Axys had enough lift when I needed it. It wasn't anything like my 155 of course but both being 800's I did not find the 3" lacking ski lift when needed. Some of this may depend on what experience you have with whatever sled you came off of. The G4 Summits as an example have more ski lift than the Axys RMK, the Polaris does ride flatter and is noticeable in situations where you want it to remain as such. Some of what you are experiencing is just the nature of the beast. Maybe a 155 would have been a more suitable sled for your riding style.

skeeter800x · Sep 6, 2020

Ice Age makes Khaos rails for the RMK. This upgrade requires 8" wheels.

dragonweld28 · Sep 7, 2020

The stock 850 clutching is very soft off the bottom end. A clutch kit will really help with what your looking for. I can help with a full clutch kit. Depending on your budget, getting a better track will also help. The stock 3 inch is horrible.

850 163 3 inch...More transfer?

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