So this winter I had a balanced polaris dragon clutch on my 07 800r motor and my crank end broke off. It did vibrate quite badly. Big John got me fixed up with updated crank bearings, new pto end, case clearance issues solved, also I put in mcb pistons and aftermarket powervalves. I bought a fluid balancer from vibratech that mounts on the flywheel to supposedly take out the vibration those motors put out, but just wondering what everyone thinks. With this kind of money dropped into the motor now, I would hate to do it all over again. I have a tra clutch as well, I was just a lot more familiar with the polaris clutch and preferred its efficiency and ease of use/cheaper parts over the brp set up. Any thoughts?
What clutch should I run 07 800r?
- Thread starter clintrballard
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Some guys add a ring to the P-85....either a starter gear ring or make a heavier ring to bring the mass closer to that of TRA (about 6 lbs difference If I remember correctly). This will bring the frequency of resonance back closer to what it will see with a TRA and hopefully extend crank life (same idea with your fluid damper).
I also lost a crank on my '07 when running a P-85....coincidence?? Maybe. I didn't really notice any gains with the P-85 (besides the simplicity) and went back to the TRA. Pretty easy to work with and provide alot more variability/adjustability than the P-85 once you get used to tuning them.
I also lost a crank on my '07 when running a P-85....coincidence?? Maybe. I didn't really notice any gains with the P-85 (besides the simplicity) and went back to the TRA. Pretty easy to work with and provide alot more variability/adjustability than the P-85 once you get used to tuning them.
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