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How much smaller volume is this box than the stocker? Where are you mounting a heat exchanger? Are you using a burp tank somewhere for this system? I like water to air coolers…

Any update on how the snow pack is building?

I kinda hate to even step foot in this thread... Is everyone clear that the 850t raises and lowers boost pressure with density altitude? It’s elevation compensation. At sea level it adds very very minimal boost of roughly .5 psi. As density altitude decreases, meaning you gain altitude, it adds...

So if power is truly the same, secondary setting appears to be the same, im assuming but gearing appears to be the same, primary spring is the same, ramp profile is the same but overall weight is lighter by 3 grams. So does that mean that effective angle the ramp is being held in the clutch is...

So they lightened the overall setup in the primary for 2021? Does that mean they reduced the output for 2021? None of the 2020.5 sleds I was around had any issues making rpm

Those chutes in at turtle...my 850t puts up high 50s to low 60s on the run in, when it’s in the rocks it’s turning 50 to 55, if I get slowed way down, off the throttle and stand back in it pulls instantly to 48 then slowly keeps churning to get back to low 50s. Cruises right out of those chutes...

My turbo turns 48 to 53 in a tough chew, skis down grinding with no run into the hill. Lighter snow, little run, skis coming up at all it twists right up to 56 to 62. I will say I haven’t seen another stock turbo run with mine and I have ridden with a bunch of them...the stock clutching ones are...

You mean to tell me that taking compression out of a two stroke turbo and narrowing the squish band caused softer bottom end?? Who would have ever thought it!!!!

Gearing has to be adjusted for driver size for sure.

Lol 2.64 on a turbo...ya I’ll watch what happens! Make your turbo perform like a stocker!! Pulling the gearing out of a turbo is the quickest way I have ever seen to make sure she doesn’t pull. Dave obviously knows this, that’s one factor active in his driver change. Beautiful sled! Looks like...

How are the snow conditions?

I haven’t seen over 7 but I don’t ever get over 8000 feet

On my gauge it runs about 4.5 pounds from the valley to 5000 feet. Then it turns itself up from there to maintain power. Mine is the original sidekick from last season, I think the new ones might turn down to a lower altitude.

Ya they are farmer easy. And work well, mine has 1500 miles on it now and just keeps rippin. Don’t turn the boost up they don’t like that

Any updates from this weekend? How’s the snow pack up too? Thanks

Interesting thread. We have 3 gen 4 sleds in our group. Average of 600 km between the sleds, all ridden hard all on original belt. However the primary runs crazy hot all the time on all 3 sleds. It's not pinching the belt well at some point in the shift range, sleds that get ridden more at that...

A few of us were thinking about running up for a Sunday and Monday ride. Is the snow wet enough that its going to turn to Concrete even in the trees? Thanks

I have a ptec turbo that works very very well. I have built several that work very well day in day out in the hands of guys that really know nothing about the mechanics of turbos. Design a properly sized kit that has all the necessary components and carb turbos are far more simple and less...