2016 back together and ready for tomorrow

WyoBoy1000 · Apr 18, 2015

I want to get a few more miles for break in before I go nuts on clutching. I added a .1" washer under stock spring with 66g weights, (bought weights not ground) pulls about 8000. Its just shifts to soon.

How did you grind the weights, off the sides or bottom.

knifeedge. bdx doesn't build sleds

The 16 is planted. the rear float valving is to fast as well. Maybe all the shocks

kiliki · Apr 18, 2015

madmax said:
Wyoboy, what did you end up with for clutching on the 16'? Yesterday was the first time I had mine out in really good snow. In stock form when I first rode it with the 70g, 85/255 Team spring I never saw over 7400rpm at around 9500 ft elevation. Got 50 miles on it that way. Then ground the weights to 65.5 grams with the stock Team spring and got 7800. Before my ride yesterday took the weights to 64g and put in the cat yellow/white (122/285) spring. Really woke it up. Could hold 8150 all day long on deep powder climbs at 9700ft. Have about 100 miles on it now. I know the team primary spring is about 1/8" bigger diameter, but the cat spring seems to fit in pretty good. If its going to rub on something I think it will hit the spider lock nut. I still have to take the clutch apart and see if the spring has any contact marks on it.

good info on early clutching.
hope dalton/cpc gets a set of adjustables in the mix. team clutching is new to me so the secondary would be nice to see a float set up for it. the doo marry to the jack shaft is jaxkchit.

WyoBoy1000 · Apr 19, 2015

I put a sw 120/285 spring in with 1 .03" glide washer and it woke up big time (66g weights) revs super quick and completely changed the characteristics of the sled. Hits 8000+ instantly and climbs to about 8120 for a happy spot. Ranges from about 8050 to 8220 while wot in technical riding unless you really load the track on a hit it doesn't drop under 8000. I curious about a 100/285 spring though just to see but I really think once I gear it up it will be even better!

kiliki · Apr 20, 2015

WY you running a 84 or 83?

WyoBoy1000 · Apr 20, 2015

83 the 84 will cause find issues

kiliki · Apr 20, 2015

have you run the sw 125-310 w O the glide?
i find the 84 just seems to fall off over time even if you shim it. after about 3-400 it just gos flat.

Betterview · Apr 21, 2015

WyoBoy1000 said:
83 the 84 will cause find issues

Wyo,
I do not understand what you mean by "find issues". Can you also please elaborate on what you experience as primary issues with the 084. Thanks!

High Country · Apr 22, 2015

WyoBoy1000 said:
Came with 70g weights, put 66g in, start of day in heavy snow it was down to 7400 with a high of 7800.
It came with an 85/255 spring, but based on the profile of the weight is kinda like mds weights, just kinda.
Slow shift,
I added 2 .30 glide washers and put on a 83 belt, pulled 78-7900 with better response. I think a 100/28570 spring would be better for me if they made one. Have to work on it.

The gear ratio on it with 7 tooth is 2.86. Joke

My 14 with 63g weights, 8 tooth drivers, 2.42 gears is snappy as helI and pulling 8120-8200.

They are both different animals, did crazy chit on both. The 16 skis are planted? Ran everything else stock so well be interesting to see what it becomes with light weight mods.

Yes, 2" in on both sides.

I hammered the existing board lip up and angle the boards up. Works great.

I have a lot of tuning to do on shock setup, clutching, etc...

Had a stock 16 there to, it won't touch this one or my 14!

How did you calculate your final drive for 2.86

CO 2.0 · Apr 22, 2015

Betterview said:
Wyo,
I do not understand what you mean by "find issues". Can you also please elaborate on what you experience as primary issues with the 084. Thanks!

Guessing he meant bind issues.

WyoBoy1000 · Apr 22, 2015

The 84 heats up and then starts to stick and keeps the clutches from shifting, just like the old 060 belts, everyone I know that knows something runs the 83, less money and better performance.

Gear ratio the sled comes with 19/50 gears, that calculates to 2.63, when you put in 7 tooth drivers where 8 tooth drivers where it reduces the gearing to 2.86.

The 125-310 spring is going to be way stiff with the right weights, although it might pull the stock 70g but not sure.

summ8rmk · Apr 22, 2015

No disrespect Wyo. Just clarifying the math.
50÷19= 2.63 that is the gear ratio of the sprockets. We all agree on that.
8 tooth driver has a circumference of 23in (2.86 pitch) the 7 tooth has a circumference of 21 in (3in pitch) that is a difference of 9% in circumference.
2.63 + 9% = 2.86, is that how u figure ur final ratio?

This is how i see it.
8 tooth to 7 tooth is indeed a 12.5% change even though the circumference is a 9% change.
Which will give a 2.95 final drive.

When u figure the drive ratio for the sprockets, u are not measuring the circumference of the sprocket but the tooth count because regardless of the circumference, one revolution of the sproket moves a set amount of chain links just like the drivers.
153( paddles) ÷ 8 (tooth driver) =19.125 revolutions.
153 ÷7 = 21.857 revolutions.
19.125÷ 21.857 = .875% or 12.5% reduction.

I'm not trying to be picky or an ***. Just OCD.

Los frijoles estan muy caliente dijo la mama osa!

High Country · Apr 23, 2015

WyoBoy1000 said:
Gear ratio the sled comes with 19/50 gears, that calculates to 2.63, when you put in 7 tooth drivers where 8 tooth drivers where it reduces the gearing to 2.86.

How did you come up with that number ...or calculation ??
I've tried every combination of formulas... gear ratios,chain pitch,center distances,driveshaft circumferences,track pitch and length etc etc

...refresh me

WyoBoy1000 · Apr 23, 2015

The real measurements make it a 9% reduction, or real close to that, logically it should be 12 but it's not. There is a old thread, I think called 8 tooth drivers with 3"?
2.86 may not be exact but it's real close when rounded up after using real world measurements

roni87 · Apr 23, 2015

Can a Polaris track be run on the stock 8 tooth drivers? (2.86p) Or 7 tooth for that matter?
I measured the proclimb and rmk in my garage and they are really close to the same length between the driver cogs.

knifedge · Apr 23, 2015

Cat tracks are 3" pitch

roni87 · Apr 23, 2015

knifedge said:
Cat tracks are 3" pitch

Tape measure puts the driver lugs at about 2.75" on both 8 tooth cat and Polaris drivers. Has anyone tried a 2.86 track on cat drivers?

Thunder101 · Apr 23, 2015

153( paddles) ÷ 8 (tooth driver) =19.125 revolutions.
153 ÷7 = 21.857 revolutions.
19.125÷ 21.857 = .875% or 12.5% reduction.

Not sure if you were thinking pitch but used paddles ?
Im using pitch bc thats how it works.

153/3=51
51/8=6.375
51/7=7.285

d1100t · Apr 23, 2015

Wondering

Maybe somebody could get Robbie from Avid to chim in here.
He's probably got some good info on what will work and what won't work if you want to mix and match tracks and drivers from different manufactures.
I'd sure like to know if you could put a Polaris or doo track on cat drivers or a cat track on Polaris or doo drivers?

WyoBoy1000 · Apr 23, 2015

Putting a poo track on a cat? Why would anyone ever do that. From my knowledge it won't work, the actual poo pitch is 2.52 on the track so no it won't work. Now a ski doo, 2.86 I've heard of ppl putting the cat pc on them before but not recommended

roni87 · Apr 23, 2015

Skidoo and pol same 2.86p.

I like the peak tracks And they're only in 2.86p also would like to run my pol comp track around home on the cat

2016 back together and ready for tomorrow

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