Converting 2012 Pro chaincase to belt drive

[Reg2view]

Gee whiz, you gotta admit, it does not get any simplier than that.

 

[gman086]

When we rode the 2013's on the first day.. I noticed some changes in the feel for sure... some of them may have been related to the change in front suspension and the shorter shocks. I suspect there is also a slight drop in the front ride height of the 2013 PRO's compared to the 12's... This, IMO, could be a significant contributor to the "new feel" of the 2013 PRO's as well.

Hey MH,

Agreed and I'll add even more fuel to the fire. NO ONE has mentioned a thing about the carbon fiber frame posts! IMHO that will do FAR more for perceived handling improvements than the gyroscopic affect of some belt drive, lol! Of course composites are my background so I'm a bit biased but try riding a carbon frame mtb vs. aluminum and you'll know what I mean. Those main supports are critical for structural input at the steering column thru to the chassis.

Have FUN!

G MAN

 

[Reg2view]

X2 what gman said - the feel of carbon is readily noticeable, with the bike industry having advanced it to an artform on almost any bike non-shock component now, not to mention more tuneable than metal by fiber layup. Handlebars on sleds are another simple example. Cost, that's another topic.

 

[XP2009]

What is the stock gearing?

X2, what is stock gearing on a 162 pro ??

 

[IDAHO HOT SHOT]

X2, what is stock gearing on a 162 pro ??

21 44. According to the fiche they are the same

 

[IDAHO HOT SHOT]

So if I am looking at this right, you should be able to use existing chain case, bearings and snap rings, thus avoiding the purchase of # 8. The spendy part is gonna be the drive and jack shafts. Does this sound correct?

 

[ryan_625]

This is correct!! I also would rather the OEM so I don't have to run the tensioner. Parts will be easier to get at the local dealer also!!

I think you are going to find you will want a tensioner. If it is developed soon enough by my buddy/shop I will be running an aftermarket belt drive with a tensioner, probably on the same style of belts as the C3. I will also be able to run it in a back to back comparison/durability test with my buddies 13.

IMO aftermarket will be a better option, especially with 11-12 machines

 

[Snodawg]

I think you are going to find you will want a tensioner. If it is developed soon enough by my buddy/shop I will be running an aftermarket belt drive with a tensioner, probably on the same style of belts as the C3. I will also be able to run it in a back to back comparison/durability test with my buddies 13.

IMO aftermarket will be a better option, especially with 11-12 machines

The C3 is priced at $950.....slightly more than the stocker components and comes with a tensioner.

 

[SSWIM]

Hey MH,

Agreed and I'll add even more fuel to the fire. NO ONE has mentioned a thing about the carbon fiber frame posts! IMHO that will do FAR more for perceived handling improvements than the gyroscopic affect of some belt drive, lol! Of course composites are my background so I'm a bit biased but try riding a carbon frame mtb vs. aluminum and you'll know what I mean. Those main supports are critical for structural input at the steering column thru to the chassis.

Have FUN!

G MAN

Not to argue, but the gyroscopic effect is HUGE when rotational mass is in question. I believe it is more substantial, and definitely a factor.

Sam

 

[Devilmanak]

I agree I'm givin it a while to see how they hold up.. I watched burandt blow a few cogs off one last year hitting pillows in a creek bed..he said they where testing diffrent compounds at the time and should have it squared away by the time there to the dealers..we where smashin the faces pretty hard but im still skeptical about how they are ganna hold up. if i had a 13 coming id most def get a spare belt for it and keep it in my pack

I am a little worried about my 2013. From what I understand he also destroyed a belt here last spring. Hope I didn't buy a Polaris Proclimb belt eater, lol.
A dealer told me that CMX makes the belt drive for Poo.

 

[lorne1176]

Not to argue, but the gyroscopic effect is HUGE when rotational mass is in question. I believe it is more substantial, and definitely a factor.

Sam

I believe 1lb. rotational mass is equivelant to 7lbs static mass.

 

[gman086]

Not to argue, but the gyroscopic effect is HUGE when rotational mass is in question. I believe it is more substantial, and definitely a factor.

Sam

Everyone has an opinion. The chaincase is low enough in the chassis compounded with MUCH of the weight loss coming from the static cover, oil and case itself, that I think the gyro effect is far more marketing hype than actual reality. Now having heavy clutches mounted high like they did in the Doo XP... well there I would agree that gyro affect might come into play. I know one thing for certain... I'm not biting on a new belt drive for my '11!

Have FUN!

G MAN

 

[icracr91]

Polaris has released the part# for the kit as far as USA dealers go....

 

[purepolaris600]

s

where can you find the part num 4 the kit

 

[m1kflyingtiger]

Post 6... There's prices and where to buy in later posts
http://www.snowestonline.com/forum/showthread.php?t=315211

 

[milehighassassin]

It's not 1:7 ratio.
For inertia it varies depending where the weight is removed. Weight removed from the center of an object doesn't do you as much good as weight removed from the outside of a spinning object. Think merry go round here. If you spin it with a 200 lb person on the outside it is harder to move put the same person on the inside and it is easier.

In the case of a chaincase there is a lot of weight on the outside with the chain itself. Compared to a belt, a chain is a lot heavier.

Clutch uses this law of Physics to function. It is always spinning the clutch weights. It's not until they shift out that the clutch weights act as a way to control engine rpms. Yes they do other things but that is their primary purpose; RPM controlling.

Technical discussion on removing weight and it's effect with inertia:

http://www.w8ji.com/rotating_mass_acceleration.htm


Removing static weight/sprung and removing unsprung weight are different from this.

Unsprung weight is usually 1 lb = 2 lbs of sprung weight.



Sent from my iPhone using Tapatalk

 

[wellfed777]

i've just one thing to add to the "will it be worth it or better " argument
alot of my riding buddies went to the C3 setup for their skidoo xp and they all seemed very happy with it and we turned one on its side to check track tention and at good tention the effort to rotate by hand was much less than my pro or any other sled i've owned as i recall

except maybe my indy 500 but everybody knows their unstopable

i'm still on the fence personally

 

[gman086]

i've just one thing to add to the "will it be worth it or better " argument
alot of my riding buddies went to the C3 setup for their skidoo xp and they all seemed very happy with it and we turned one on its side to check track tention and at good tention the effort to rotate by hand was much less than my pro or any other sled i've owned as i recall

except maybe my indy 500 but everybody knows their unstopable

i'm still on the fence personally

That is, unquestionably, the biggest benefit for considering belt drive: less rolling friction.

Have FUN!

G MAN

 

[powderlites]

Belt drive Polaris

We have in stock belt drive for Polaris chain to upgrade as well different ratios for new belt drive from C3 Powersports.
www.powderlites.com
250-836-4422

 

[Super Dave3]

Part # 2879085 shows its been discontinued on Polaris dealer website.