Powerbloc clutches
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Popcorn popper
- Posts: 232
- Joined: Tue Dec 29, 2020 6:21 pm
- Real Name: Steve
Powerbloc clutches
Anyone ever use the powerbloc on liquifires to replace 102c? I heard some use 108 but because of bigger diameter its more work? The 102 is getting tough for ramps n springs to find!!
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nick80lf
- Posts: 1200
- Joined: Thu Jan 14, 2010 10:45 pm
- Real Name: Nick
- Location: The snow free zone of Ohio
Re: Powerbloc clutches
I've never used a powerbloc. I have seen several others use the polaris p85. I do have a 80 liquifire with a 108EXP (the early 108EXP with hex head bolt). I honestly regret buying the 108EXP. There are several reasons.
1. It reacts differently when setup the same as a 102c. I live in Ohio and don't get much of an opportunity to fiddle with setups. When I travel to find snow I would rather ride then fiddle. Long story short.....Comet makes two different purple springs and I ended up using the heavier purple spring in my 108EXP to get it to engage and shift similar my sled with the 102C.
2. Everyone talks about the fact that a 108EXP is a larger diameter clutch and taking advantage of the higher ratio. This is true but, if you don't address the limiter shim in the secondary it will never shift out to the full 8". In my case, I'm still running the stock 80 limiter shim. Two reasons for that, the fiddling deal and I felt that low to mid 80MPH was plenty fast for 35 year old sled (in 2014) with about 4" of suspension travel.
3) removing the belt with my 108EXP is very difficult. I typically remove the clutch mounting bolt to make belt removal easier. It can be done with the bolt in just no fun at all.
With all of that said I will say the 108EXP is a much beefier clutch than a 102C. In my situation I will never put enough miles on it to justify it from the longevity standpoint.
1. It reacts differently when setup the same as a 102c. I live in Ohio and don't get much of an opportunity to fiddle with setups. When I travel to find snow I would rather ride then fiddle. Long story short.....Comet makes two different purple springs and I ended up using the heavier purple spring in my 108EXP to get it to engage and shift similar my sled with the 102C.
2. Everyone talks about the fact that a 108EXP is a larger diameter clutch and taking advantage of the higher ratio. This is true but, if you don't address the limiter shim in the secondary it will never shift out to the full 8". In my case, I'm still running the stock 80 limiter shim. Two reasons for that, the fiddling deal and I felt that low to mid 80MPH was plenty fast for 35 year old sled (in 2014) with about 4" of suspension travel.
3) removing the belt with my 108EXP is very difficult. I typically remove the clutch mounting bolt to make belt removal easier. It can be done with the bolt in just no fun at all.
With all of that said I will say the 108EXP is a much beefier clutch than a 102C. In my situation I will never put enough miles on it to justify it from the longevity standpoint.
80 Liquifire (purchased 1996 ~ Running)
80 Liquifire (purchased 2010 ~ Running....Now)
80 Liquifire (purchased 2011 ~ Not running - I officially have a problem now)
83 Snowfire (purchased 2014 father/son restoration project)
78 Spitfire ~ sold (should have been shot for this)
80 Liquifire (purchased 2010 ~ Running....Now)
80 Liquifire (purchased 2011 ~ Not running - I officially have a problem now)
83 Snowfire (purchased 2014 father/son restoration project)
78 Spitfire ~ sold (should have been shot for this)