Over reving on the 850T

[skegpro]

Yes, with the Turbo Tamers… on the 2020.5 they use less weight on the heel and toe of the ramp than the newer models.

What are they? New ramps?
Pictures?

 

[bendy]

What are they? New ramps?
Pictures?

 

[Summitizer]

Anyone now the weight of just the turbo tamer arm, no screws or washers…

 

[Shredder]

8600???? That sounds extremely bizarre!!! Now we are getting somewhere.

I’d be taking the clutches apart, and verify what’s in there. That’s the highest revving turbo I’ve heard of yet, are you using max recall to tune your rpm???
81/8300 is a common complaint with the stock clutching.

Belt slip can be quite an underestimated ghost when clutching at times…. Just sayin

 

[skegpro]

Kinda funny observation.
So two of the same 2022 t do on the hill today.

Endless steep climb.

XS-821 7800-7900 rpm with 175lb rider.

Doo factory belt 8200-8300 rpm with 250lbs rider.

Xs-821 seems to be a softer compound and draws her down a bit.

 

[greenthumb]

Has anyone tried the SLP Magnum weights?
Local guy is strongly recommending them coupled with a primary spring.

 

[drew562]

Arctic edge has a kit. I really don’t trust clutch “ kits “but if I did it would be his.

 

[Dawizman]

I've gone through this thread and see no real consensus. Do the majority have no issues with over rev? The snow was too deep last week to see the gauge on the rental.

What is working well for the tree riders? I pick my Summit up tomorrow and want to have something figured out. I have been told Mountain Magic has a good package for the 850T.

 

[maxwell]

I've gone through this thread and see no real consensus. Do the majority have no issues with over rev? The snow was too deep last week to see the gauge on the rental.

What is working well for the tree riders? I pick my Summit up tomorrow and want to have something figured out. I have been told Mountain Magic has a good package for the 850T.

Honestly just ride it, if its more than 8100 RPM consistently just get the turbo tamers. But most sleds are perfect out of the box. At least for 2022.

 

[Dawizman]

Honestly just ride it, if its more than 8100 RPM consistently just get the turbo tamers. But most sleds are perfect out of the box. At least for 2022.

Perfect is a strong word. I'll hold you to it . Will see how it works out of the box first for sure.

I think a lot of riders don't pay much attention and just run it. RPM doesn't matter much when you're bashing meadows or pounding beers at the cabin.

 

[maxwell]

Perfect is a strong word. I'll hold you to it . Will see how it works out of the box first for sure.

I think a lot of riders don't pay much attention and just run it. RPM doesn't matter much when you're bashing meadows or pounding beers at the cabin.

haha, i just posted a video of mine and she doesn't budge all day. Not perfect but pretty close LOL

There's 2 issues with the overrev. First, if you look at the dyno sheets for the 850T the power and torque falls off hard after 8100rpm. So your just not doing yourself any favors by running it at higher RPM. Secondly the sled likes to backfire when it over revs and will cause you issues with your reeds.

If it over revs it needs to be addressed.

 

[oler1234]

Kinda funny observation.
So two of the same 2022 t do on the hill today.

Endless steep climb.

XS-821 7800-7900 rpm with 175lb rider.

Doo factory belt 8200-8300 rpm with 250lbs rider.

Xs-821 seems to be a softer compound and draws her down a bit.

I like this idea and gonna try a aftermarket belt.

$150 for a belt with warranty vs $270 and no warranty.

Blown up a lot of skidoo belts but never a aftermarket one.

 

[BILTIT]

Has anyone tried the SLP Magnum weights?
Local guy is strongly recommending them coupled with a primary spring.

I use them on my 11 rmk 800, really like them.

 

[Caper11]

I've gone through this thread and see no real consensus. Do the majority have no issues with over rev? The snow was too deep last week to see the gauge on the rental.

What is working well for the tree riders? I pick my Summit up tomorrow and want to have something figured out. I have been told Mountain Magic has a good package for the 850T.

That’s probably an expensive clutch conversion.

 

[Dawizman]

Got a decent dump of snow here at home, and lots of wind all last night through till lunchtime today. I cut out of work to get out for a ride on the new sled. Not sure if I got a good one or a lemon, but at 540m elevation it was consistently pulling 7900rpm on a WOT pull. Knocked off 9% of break-in on my short 25km rip. Wasn't much other than on or off. Even though I feel like ch!t, came home with a big smile.

Hard to keep the front end down compared to the cats I'm used to. Looking forward to getting out to the hills next week!

I was nipple deep taking this picture in a field.

 

[skegpro]

Got a decent dump of snow here are home, and lots of wind all last night through till lunchtime today. I cut out of work to get out for a ride on the new sled. Not sure if I got a good one or a lemon, but at 540m elevation it was consistently pulling 7900rpm on a WOT pull. Knocked off 9% of break-in on my short 25km rip. Wasn't much other that on or off. Even though I feel like ch!t, came home with a big smile.

Hard to keep the front end down compared to the cats I'm used to. Looking forward to getting out to the hills next week!

I was nipple deep taking this picture in a field.View attachment 251607View attachment 251608

I find they don't start making the high rpm untill you get into the boost at 1100m ish.

 

[Dawizman]

I find they don't start making the high rpm untill you get into the boost at 1100m ish.

So it's like they actually over compensate at a certain elevation? Will find out in Revy next week I guess.

 

[maxwell]

So it's like they actually compensate at a certain elevation? Will find out in Revy next week I guess.

Reading your previous post, You will be good

 

[skegpro]

So it's like they actually compensate at a certain elevation? Will find out in Revy next week I guess.

Yeah as you go up the trail you will feel it come alive. At home when I ride at 900m it feels dead.

 

[Dawizman]

Reading your previous post, You will be good

Meant to say *over* compensate

Thinking it'll be alright though. Clutching feels decent overall in my opinion. Nice engine braking, quick to rev back up. Hard to test it well in these flatland conditions, but so far it's pretty sweet.