so how do i know with out taking my buggy apart what i have in it now? Has any one tried new springs and weights or just weights and is there a big change in performance?
Most people either shim the clutch spring or a stiffer spring when they put in new rollers. When you have it all apart, you might as well do it all.
You can also go here so see a video of an operating CVT. It might give you a better understanding of how it works.
Back tracked it through their archive link and the date in the original link (10/27/2003).
Looking at that link in particular, could you put a bigger variator in sorta like putting a larger front sprocket on a bike? Maybe one that drops down just as small, but with a larger diameter to let the belt climb out further? (Maybe need a different sized belt and/or rear pulley?)
Joined: Thu Oct 18, 2007 9:41 am Posts: 44 Location: North East (Italy)
billl2099 wrote:
i notice that the it said to trim the spacer 1/16 in the variator for better top speed, has anyone tried that yet? i like to know how much top speed are we talking about, also what would that do to the low end torque?
bill
I have done!
But it isn' t all...
Trimming the peak of the "cones" with sandpaper may give some more maximum speed... but if you want to exploit your variator at the top, truly transforming it in a hi-ratio one... you've got to do some extra room for the rollers too!!! mines were fully reaching the edge (as it must be!) whitout any modification!
You don't affect the "low gears" anyway, maybe rather the modified Var keeps the lowest gear a bit more before starting to extend , and at the end you obtain extra hi gears too ! And no fear, rollers does't escape and neither belt cause as you can see in the video in stock variator belt isn't squeezed as it could, like after this simple modification! And all runs smoothly... better riding, more top speed and less fuel consumption.
So, open up your dremel box and enjoy!
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Joined: Sun Jan 07, 2007 7:38 pm Posts: 3077 Location: hopatcong, NJ
marcoporseo wrote:
billl2099 wrote:
i notice that the it said to trim the spacer 1/16 in the variator for better top speed, has anyone tried that yet? i like to know how much top speed are we talking about, also what would that do to the low end torque?
bill
I have done!
But it isn' t all...
Trimming the peak of the "cones" with sandpaper may give some more maximum speed... but if you want to exploit your variator at the top, truly transforming it in a hi-ratio one... you've got to do some extra room for the rollers too!!! mines were fully reaching the edge (as it must be!) whitout any modification!
You don't affect the "low gears" anyway, maybe rather the modified Var keeps the lowest gear a bit more before starting to extend , and at the end you obtain extra hi gears too ! And no fear, rollers does't escape and neither belt cause as you can see in the video in stock variator belt isn't squeezed as it could, like after this simple modification! And all runs smoothly... better riding, more top speed and less fuel consumption.
So, open up your dremel box and enjoy!
So...what are the gains??? mph? climbing, anything? do you uave GPS? THanks!
Joined: Mon Mar 14, 2005 10:59 am Posts: 674 Location: Paducah, KY
If you are running anything under probably 14gr rollers (maybe 13) it would make zero difference. Since most people on here are running 9-10gr rollers or sliders, the belt never climbs past maybe 1/2 of the variator. The stiffer torque spring only compounds this effect, making it even harder for the belt to climb the variator.
If you were going for maximum on road speed, then this may be the way to go, but with the lower weight rollers, they never get that far up the ramp.
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