Silber Axys Clutching

WyoPro · Aug 26, 2016

Anyone care to share their experiences with drive/driven springs, helixes, and weights on this kit?

Looking for information on 7# 8-11k but interested to hear any/all experiences.

Kit came with Polaris #7041988 Almond/Red 165/310 drive spring, Team Black/White 160/260 driven spring utilizing stock straight 40 helix, and 64-80 mag adj weights.

NWaxys · Aug 26, 2016

I'm running their clutching on one axys and speed shop Inc on my other both have silber... I ride 4000-8000 feet in Washington state and mine is spot on. At your elevation you should b close too. May need fine tune a tiny bit but doubt it will take much

KAWGRN · Sep 2, 2016

What RPM is everyone running , just got a 7# kit and it's got a pink team spring with Polaris weights, you say yours are adjustable??hummm

NWaxys · Sep 2, 2016

You can add different flyweights to adjust them... Bunch of companies make them... You'll love the silber set up!

AKFULLTHROTTLE · Sep 2, 2016

The Axys IMO loves the 8350 range... Really pulls hard in this range.

The 2015/16 Kit ran a:
Pink 180/320 primary
Black/Lime Green 180/300 Secondary
42/46 Helix.
This kit either had you use Polaris weights or came with Rooster adjustable weights. I had to get tungsten washers to obtain enough weight with the roosters.

The 2016/2017 Kit uses a:
Almond/Red 165/310 primary
Black/White 160/260 secondary
OEM straight 40 helix.
This kit comes with SSI adjustable weights.

Now for Alaska we start at 80 grams and go up so we need the SSI 78-90 Gram Pro Mag Weights. SSI sells three kits, 52-68, 64-80 and 78-90.

http://www.bd-xtreme.com/index.php?id_category=98&controller=category

Last season I ran the 15/16 set up on 5 lbs with 86 grams @2200' and it pulled 8350-8450 perfectly. 7 lbs was too much and it over reved pretty bad. Now at 5500-7000 the 7 pulled nice.

This season I am going with the 16/17 set up but keeping my steeper helix as we believe it needs it. Also I am changing my gearing from the 19/44 to 20/43 in hopes to but more load on the clutching also provide more track speed since this sled pull through anything extremely quick right now.

sledheader · Sep 2, 2016

AKFULLTHROTTLE said:
The Axys IMO loves the 8350 range... Really pulls hard in this range.

The 2015/16 Kit ran a:
Pink 180/320 primary
Black/Lime Green 180/300 Secondary
42/46 Helix.
This kit either had you use Polaris weights or came with Rooster adjustable weights. I had to get tungsten washers to obtain enough weight with the roosters.

The 2016/2017 Kit uses a:
Almond/Red 165/310 primary
Black/White 160/260 secondary
OEM straight 40 helix.
This kit comes with SSI adjustable weights.

Now for Alaska we start at 80 grams and go up so we need the SSI 78-90 Gram Pro Mag Weights. SSI sells three kits, 52-68, 64-80 and 78-90.

http://www.bd-xtreme.com/index.php?id_category=98&controller=category

Last season I ran the 15/16 set up on 5 lbs with 86 grams @2200' and it pulled 8350-8450 perfectly. 7 lbs was too much and it over reved pretty bad. Now at 5500-7000 the 7 pulled nice.

This season I am going with the 16/17 set up but keeping my steeper helix as we believe it needs it. Also I am changing my gearing from the 19/44 to 20/43 in hopes to but more load on the clutching also provide more track speed since this sled pull through anything extremely quick right now.

So if I'm hearing you correctly if you get the 16/17 setup, you get shorted the helix but in your opinion, it still needs it? That sucks...I have the 16/17 setup without a helix

AKFULLTHROTTLE · Sep 2, 2016

That is IMO.... Yet to be proved by my self. Justin has done a lot of testing and found the 40 worked. With my elevation and air density we are running more weight than most and I want to bring that down. Hoping with the new springs and steeper angle I will accomplish that.

NWaxys · Sep 2, 2016

We ride 4000-7500 here the almond red set up put me at 8350-8400 never had to add washers or anything, that's at 5# going to try 7# this year will see if need weight added or washers on fly weights

WyoPro · Sep 3, 2016

sledheader said:
So if I'm hearing you correctly if you get the 16/17 setup, you get shorted the helix but in your opinion, it still needs it? That sucks...I have the 16/17 setup without a helix

Can buy a TEAM helix for less than $100. Those SSI weights are spendy.

KAWGRN · Oct 2, 2016

So at 9-11K elevation probably,,,,,, so I think like a 140-330 and 70's with the stock 2016 secondary? Buddy has the same kit and sled and he has 72's but only revving 81-8200 from what I'm hearing 83-8400 sounds faster?

Boston Racing · Oct 3, 2016

sledheader said:
So if I'm hearing you correctly if you get the 16/17 setup, you get shorted the helix but in your opinion, it still needs it? That sucks...I have the 16/17 setup without a helix

That is incorrect. We tested all the different setups and felt the stock helix performed really close to our custom cut one. If you want it they are still available but do not come standard. The weights may vary depending on when kits are ordered. We have a few suppliers and have been buying them all out this season, same with clutch Springs.

aksledjunkie · Oct 3, 2016

I've got a straight 40 so I guess we will see. Riding same elevation as akfullthrottle.

WyoPro · Oct 3, 2016

KAWGRN said:
So at 9-11K elevation probably,,,,,, so I think like a 140-330 and 70's with the stock 2016 secondary? Buddy has the same kit and sled and he has 72's but only revving 81-8200 from what I'm hearing 83-8400 sounds faster?

Which 70's? The 10 series? Seems most running the 7# spring are running 74-76 gram weights and seeing 8300+ rpms.

AKFULLTHROTTLE · Oct 3, 2016

They like the 8350 range!

Crazy how much the elevation changes things... Seeing I am running 86 grams at 3000 feet wit the 5 pound spring and pulling 8350.

tdbaugha · Oct 3, 2016

WyoPro said:
Which 70's? The 10 series? Seems most running the 7# spring are running 74-76 gram weights and seeing 8300+ rpms.

The 10 series and those SSI weights are quite a bit different. Not apples to apples.

KAWGRN · Oct 3, 2016

Polaris 10 series,,,, and do the EPI weights that Carls use shift differently?

WyoPro · Oct 3, 2016

tdbaugha said:
The 10 series and those SSI weights are quite a bit different. Not apples to apples.

How so? Profile seems to be damn near the exact same.

SSI weights aside...heard a lot of reports of either 10-74 or 10-76 at 8-11k ft pulling the R's.

tdbaugha · Oct 3, 2016

WyoPro said:
How so? Profile seems to be damn near the exact same.

SSI weights aside...heard a lot of reports of either 10-74 or 10-76 at 8-11k ft pulling the R's.

Not even close. SSI are way more heal bias and hence run more weight.

Are you sure about that? Boondocker Sidekick comes with 10-70's... MTNTK intercooled pump gas kit comes with 10-72's...

polaris-snowmobile-bushing-weight-assembly-10-74-1322429-clutch-weights_1414149.JPG

WyoPro · Oct 3, 2016

The profile...shift profile. Should know here soon. I'll report back with #'s. I'm curious as well so might tune with the included SSI weights then swap with equivalent 10 series and see what happens. Unfortunately for myself...right now none of it is personal experience.

KAWGRN · Oct 4, 2016

The 2016/2017 Kit uses a:
Almond/Red 165/310 primary
Black/White 160/260 secondary
OEM straight 40 helix.
This kit comes with SSI adjustable weights.

any one know what the stock secondary spring in a 2016 is???

Silber Axys Clutching

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