Anybody try different driven clutch springs in the m8000? I can't find much info on springs or even helix options.
DRIVEN CLUTCH SPRING OPTIONS
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I'm with you, I have had great luck with Speedwerx H5 primary springs and would love to try their secondary spring but, I don't know what the spring rate is of the stock M8000 secondary spring or where to go from there. My sled is a 2015 and I will be watching with great interest to see what you learn.
x2
2015...
Spring rate for the blue/black secondary spring is 202 / 284. No idea what the 2016 uses with the Team BOSS.
Spring rate for the blue/black secondary spring is 202 / 284. No idea what the 2016 uses with the Team BOSS.
Yeah, I finally found the stock rate. I was just curious if anyone had tried any different set up in the secondary. It works well in the snow, backshifts, holds r's, but it seems like it just hits a wall after about 40 mph. It just buzzes and doesn't pull. 2010 m8 set up the same in the drive clutch will run off and leave it after 40. I know it isn't a drag racer, but it just isn't the best set up. Besides I hate it when an old ski-doo blows my doors off when I'm used to it being the other way around. This is on my 2013 and 2014, and my friends 2015.:face-icon-small-con
Are you running the stock helix?
What is your gearing?
What size drivers?
What size track?
What is your gearing?
What size drivers?
What size track?
S
We have our H5 alloy springs in 6 different rates for the 2012-2015 and 12 rates for the 2016 BOSS secondary. The 12-15 springs are on the website, but the 16 are not- all are in stock though. For comparison, the stock 12-15 black/blue is 180-295. See page 21 of the 2016 catalog and give us a call to order- http://speedwerxstore.com/downloads/catalogs/2016_CATALOG.pdf
Geared 20/49 with stock drivers and 2.6 162 track. There must be something up with the secondary on these sleds. It works alright it just doesn't load the motor and pull. same motor same clutching in primary on the 2010 and it will pull all the way to full shift. Sometimes you can clutch and get perfect r's but the sled just doesn't put it to the ground. My old D&D 860 was that way and I kept adding weight in the primary. The r's stayed the same but it just kept pulling harder and harder.:face-icon-small-con
Any new news on this subject? I would love to find a Speedwerx H5 secondary spring that would work well and compliment my Speedwerx H5 125/310 primary spring and MDS clutch weights.- in my 2015 primary.
It appears the stock Cat secondary spring is 202/284. So perhaps just a bit stiffer Speedwerx spring and I could get the quality of a H5 spring without compromising (and hopefully improving) the quality of the shift.
The Speedwerx H5 secondary spring rates are:
150-230
150-250
150-270
155-220
170-260
170-270
http://www.speedwerxstore.com/index.php?l=product_detail&p=2314
So, If the Cat secondary spring rate above is correct, I'm shocked to see that Speedwerx doesn't make a stiffer spring than the stock cat secondary spring or perhaps they measure their spring rates differently?
Seeing the spring rates, I have to wonder, is the Cat secondary spring rate so high to try to cover up other inherent shifting issues and the lack of quality shifting of the stock secondary? :face-icon-small-dis
Where do we go from here?
It appears the stock Cat secondary spring is 202/284. So perhaps just a bit stiffer Speedwerx spring and I could get the quality of a H5 spring without compromising (and hopefully improving) the quality of the shift.
The Speedwerx H5 secondary spring rates are:
150-230
150-250
150-270
155-220
170-260
170-270
http://www.speedwerxstore.com/index.php?l=product_detail&p=2314
So, If the Cat secondary spring rate above is correct, I'm shocked to see that Speedwerx doesn't make a stiffer spring than the stock cat secondary spring or perhaps they measure their spring rates differently?
Seeing the spring rates, I have to wonder, is the Cat secondary spring rate so high to try to cover up other inherent shifting issues and the lack of quality shifting of the stock secondary? :face-icon-small-dis
Where do we go from here?
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I've been pondering trying the 150-270 just from my experience on my m7.
I think the stiff springs really hold sleds back like clutch was saying. Everyone and there dog said to run the m8 orange in the m7 so I tried it and I hated it. Felt like it hit a wall just like what's being described here, also only time that sled blew a belt was with that spring. So I through in black/orng. speedwerx spring, I believe the rates were 140-270/280, and it felt alot better. Pulled better on up shift and still back shifted great. Ran that set up right up to 2014 when i finally upgraded with no problem.
so just from that experience I've thought about going softer on at least on initial rate. But being a hole different sled/clutch not sure if these sleds require such a stiff spring to function proper.
one things for sure I won't be tryin anything if it doesn't start snowin at some point.
I think the stiff springs really hold sleds back like clutch was saying. Everyone and there dog said to run the m8 orange in the m7 so I tried it and I hated it. Felt like it hit a wall just like what's being described here, also only time that sled blew a belt was with that spring. So I through in black/orng. speedwerx spring, I believe the rates were 140-270/280, and it felt alot better. Pulled better on up shift and still back shifted great. Ran that set up right up to 2014 when i finally upgraded with no problem.
so just from that experience I've thought about going softer on at least on initial rate. But being a hole different sled/clutch not sure if these sleds require such a stiff spring to function proper.
one things for sure I won't be tryin anything if it doesn't start snowin at some point.
I agree Vern. The 150/270 or the 170/270 sound like the best ones to try to me as well. I am a little worried about a potential low end bog being created by the 150/270 when the secondary starts to open considerably earlier.
I sure wish someone who has already been down this road would chime in with their experiences.
I sure wish someone who has already been down this road would chime in with their experiences.
Speedwerx says the cat spring is 180-295 when measured the same. I am going to try the black/white 170-270 this weekend and I will report back. I believe that the stock one is overly stiff. It is funny Cat uses that same spring from the baby engines clear up to the m9000 turbo. In 2015 Cat uses a softer spring in the turbo sled and dropped to a 38 helix from a 42-40.:face-icon-small-con
I figure if my m7 pulled a 140 start rate that this 800 ought to no problem, that is unless there's somethin in the design that is different enough to not allow for it. I've also heard that the reverse won't work right if the sec. Spring is to soft, so there's always that to consider to I guess
The 180/295 number makes much more sense to me. I'm looking forward to your update Clutch! I too think the 170/270 just might the ticket.
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They have talked about both. I just got a new spring and helix from BDX. They have new spring and can make you any helix you want. This is for the 2016 Boss secondary.
with the big fin secondary the best setup i found was to get a 36° hercules helix from thunder shift and his purple spring it has a 180 finish rate.
Ditch the plastic spacer in the secondary and take about 4 grams of primary weight out. cat is using that giant secondary spring to hold the clutches in reverse and it hurts you most of the time.
the clutches will cool off significantly because the primary wont be trying to overcome that super stiff secondary spring that isn't needed
Ditch the plastic spacer in the secondary and take about 4 grams of primary weight out. cat is using that giant secondary spring to hold the clutches in reverse and it hurts you most of the time.
the clutches will cool off significantly because the primary wont be trying to overcome that super stiff secondary spring that isn't needed
I am talking about 2015 and older.
The 2016 is whole different deal with the Team clutches.
The 2016 is whole different deal with the Team clutches.
I'm talkin for my '14 secondary, what kind of issues happen with to soft of spring and reverse? Belt slippage? After all these years of no reverse I dont find myself using it much so it might not be to much of an issue for me.
