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SLP Clutch Issues

8K views 30 replies 8 participants last post by  Hunterworks  
#1 ·
Just installed the heavy load kit, and installed everything as instructed, the only thing that i don't have on it is the high performance belt, which is recommended, I'm running the EPI HD belt. Anyway I got it all together and im hitting the rev limiter right off the bat, i can only hit 40 mph and its reving at 6550. the kit came with 62 gram weights and it called for adding 3 grams to the last hole, do i not have enough weight? would not having the HP belt really make that much of a difference?

Im stumped fellas:rollfinger:
 
#2 ·
I, and several others on the Forum, have the SLP 4500+ ft. Trail clutch-kit and we've not had the problem/s you're describing. But I'm running standard-size BigHorn tires and an OEM belt. My SLP clutch functions superbly, and I couldn't be more pleased. If you're running other tires, or a non-standard belt, then i can't offer any help. You might try calling Dustin at SLP (he's their clutch guru) and get his input. My two-bits......

Cheers
 
#3 ·
Sounds like it needs more weight. Adding weight will lower engagement rpm and lower the top RPM. The goal is to get the top RPM near peak power and below the rev limit. I take it you added the suggest 3 grams. You might add another 2 grams and see what that does. I think there is a rough rule of thumb that 1 gram = 100 rpm. I would suggest calling SLP and tell them what you have and see what they suggest.
 
#4 ·
Ya, I dont know about their clutch kit, but clutch kits are clutch kits.....and clearly you have too little weight in there.

When I first clutched my XP, it was only hitting like 7800 off the line. Removed all weight from the heel, then Im hitting the limiter off the line! You gotta find that balance between what your target RPM is and the limiter. I think you want a little over rev off the line....couple hundred rpm, and then settle off right i the sweet spot your looking for.
 
#5 ·
This might sound bad but did you get the right kit? Big difference in a 08 kit and later models due to the secondary clutch change to the rapid reaction clutch while yours has the roller style with removable helix.

The need for the HD should not affect it that much, if you want to change to the HD belt no need in going to the dealer for it, we sell the Gates C12 Carbon fiber belt and the only one we sell for the RZR 800 is equal to the HD style.

You are welcome to call me monday about the clutching issue even though you didn't buy that here, I think I can fix you up.

Todd
 
#6 ·
Just installed the heavy load kit, and installed everything as instructed, the only thing that i don't have on it is the high performance belt, which is recommended, I'm running the EPI HD belt. Anyway I got it all together and im hitting the rev limiter right off the bat, i can only hit 40 mph and its reving at 6550. the kit came with 62 gram weights and it called for adding 3 grams to the last hole, do i not have enough weight? would not having the HP belt really make that much of a difference?

Im stumped fellas:rollfinger:
This might sound bad but did you get the right kit? Big difference in a 08 kit and later models due to the secondary clutch change to the rapid reaction clutch while yours has the roller style with removable helix.

The need for the HD should not affect it that much, if you want to change to the HD belt no need in going to the dealer for it, we sell the Gates C12 Carbon fiber belt and the only one we sell for the RZR 800 is equal to the HD style.

You are welcome to call me monday about the clutching issue even though you didn't buy that here, I think I can fix you up.

Todd
I got the right set up, i called them and told them what i had and thats the kit they put together for me, ill try adding 2 more grams to each weight like Jim suggested and see what happens, I appreciate the offer Todd and ill give you a shout if SLP doesnt fix my problem. Cheers:pint:
 
#7 ·
OK, here is the update

I ended up putting 3 more grams on each weight (total of 6 grams each), it has a smooth engage up to 50-55 mph at 6350 then it starts touching the rev limiter. I noticed that both clutches look to be not fully engaged at that rpm, there is about 3/4 of an inch left on the primary, and the secondary looks to be the same. Will changing to the "high performance" belt change that? or do i still need a little bit more weight?
 
#8 ·
.........I noticed that both clutches look to be not fully engaged at that rpm, there is about 3/4 of an inch left on the primary, and the secondary looks to be the same. Will changing to the "high performance" belt change that? or do i still need a little bit more weight?
Sounds like a belt-upgrade would be your next, logical change. I suggest that you try one of the Gates Carbon-Fiber belts from Hunterworks; just might solve ALL of your problems! My two-bits.........

Cheers
 
#15 ·
I cant add anymore weight, there are only two holes in the weight itself, and both holes have 3 grams in them. Im very happy with the low end, it engages very smooth, i just belive that i should get more high end that its offering. I do understand that to get one you have to take away from the other, but bangin off the rev limiter at 55 mph instead of 65 like normal is strange to me. For all i know its just the belt or im not shimmed correctly..... or i still need more weight....
 
#23 ·
With the 2008 Polaris used the TEAM secondary, thats why i was able to just change the helix rather than the whole clutch, since yours is newer it is going to hit a higher rev limit than mine, Gen 2s are just a little finicky from my experience :ride:
 
#24 ·
Alrighty, I can now update this thread. I changed out the belt to the Gates CF, and it made a huge difference. I have smooth engagement, really good off the line, and actually increased the top speed to 65. This was a straight forward to install kit, and now that its set up right I love it, and will suggest it to anyone looking for good clutching
 
#25 ·
Alrighty, I can now update this thread. I changed out the belt to the Gates CF, and it made a huge difference. I have smooth engagement, really good off the line, and actually increased the top speed to 65. This was a straight forward to install kit, and now that its set up right I love it, and will suggest it to anyone looking for good clutching.
Glad to hear that you got it sorted-out! Based on my own excellent experience with the SLP clutch, it was hard to understand why your's was being finicky. In the final analysis, it sounds like your problem/s was actually related to the belt, not the clutch. Anyway, glad you got it sorted--out and are now happy with the performance.

Cheers
 
#26 ·
Just seen this thread. While the weights might not have been properly weighted from the get go, they were obviously close. But what stands out here was that a used belt was used. I don't recall the exact dimensions of the epi belt, but I believe it's thinner than the stock polaris belt. Also, the new gates belt is wider than the stock polaris belts. Therefore you will gain a little top end speed just from a belt change. Also added in is the epi belt is likely a harder compound than the polaris belt. And I don't know about the gates belt. But anyway, a harder compound belt needs harder clamping force on it to reduce belt slippage. Belt slippage kills top speed, along with hitting the rev limit sooner. This is farther explained with your situation by the fact that you said you belt isn't riding to the top of the primary. Not enough clamping force to push the belt up higher.