Honestly, I guess I meant just clicker adjustments as MX-Z Man said but maybe I do need to rethink this. I have played around with clutch tuning a lot on past sleds with TRA clutches so I do have a decent understanding of some of it. My thoughts on my current sled, a 2018 850 TNT, is to just run it 'stock'. As far as the clickers go, it seems many people are not happy with overall performance on clicker position 4 when they are forced to run it to achieve the correct top RPM. In a nutshell, my sled has a 531 with about 1000 miles on it. The sled has about 4000 and has never blown a belt. Regardless, I am worried about blowing the 531 and causing carnage if I play too hard on the lake so I never hold it very long. I want to buy a new belt and was leaning toward an XS821 but hear mixed comments about whether is may improve or degrade performance over the 531. The 571 is out after all of the inconsistent performance and dropping rpm that I hear about. I definitely do not want to take even a small performance hit since I ride with some Pol 850s and a 900T and don't want to get beat when we line up on the lake which will probably happen soon. I guess I am not opposed to doing something with pivot bolts or washers. My only issue is I don't have a convenient local place to have a good test and tune session. It would be more like put the belt on and run it for a day including mostly trail but some lake time and then make a change at home before the next ride. I can take the time to stop and change clickers during the ride if I am with the group but that's about it. If you think the GBoost belt will be close enough that I could get it working good without a lot of time I would not mind giving it a try. Please let me know what you think. My sled has the 129" Ripsaw 1.25" with 90ish picks and the stock gearing. I did update it with the doo clutch cooling kit like they put on the 2019s and up as a preventive measure. I am not totally opposed to a gear change either if it will help me with the Pol 850s and 900T on top end. I hear the Doo 850 is not great on top end compared to these sleds. Thanks
If you don't blow belts and you are on clicker 3 with 531, you are happy with your rpms and performance, buy another 531. You stated you dont want to mess with pivot and not sure what performance will change if you adjust clickers....I would keep doing what you are doing. My first reply to your question was, the gboost would be a good candidate for someone pulling low rpms on clicker 3 or needing clicker 4 with a 571. That scenario would allow a gboost to be added and run perfect rpms on clicker 3. I also agree, if your rpms are good with 531 on 3, an 821 is not a good choice as you would need to click to 4 to maintain rpms. I have data logged that scenario with an 821, it is slower ET than clicker 3. For someone that does not care, just wants peak rpms close, no problem. You stated you wanted best results when you do line up against some polaris 850's and you dont have the ability to test or compare anything, my advice would be stick with a belt that gets you 79-8000 peak rpms in clicker 3.
There is a reasonable chance you could put a new gboost on, click to 2 when new and rpms would be right on and you would be a rocket, after 3-500 miles may need to click back to 3. I think that would happen but have not tested it.
Edited by Jeb©, 25 February 2021 - 08:58 AM.
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