CVT School

Posts: 2740 · *Last edited by Blister on Sun Feb 05, 2006 12:14 pm; edited 3 times in total*

For all you still confused about how a variator works, go here.

http://www.flexistentialist.org/archives/2003/10/27/cvt_basics_con.shtml

And here is another on CVT tuning.

http://www.off-road.com/atv/kidskorner/clutching2.html

Also, did you know you can mix variator weights? Go here to see how.

http://www.battlescooter.com/6955/14601.html?*session*id*key*=*session*id*val*

And here is a video of a working CVT.

http://www.buggynews.com/viewtopic.php?t=1816&highlight=working+cvt

Other various links to how CVT's work:

http://cvt.com.sapo.pt/why/why_cvt.htm

Posts: 6166

Thats a good find. It makes everything clear. Smile

Posts: 2300

You can, however, only use three rollers, or use three of one size and three of another

This I will be playing with....

great find

Applause

stu

Posts: 2740

I don't think I would only use three rollers. This may cause some problems. Possibly uneven rollout. I am going to mess around with 3 of one weight and 3 of another. One of those links show you how to graph your results to find the sweet spot.

Posts: 4472

very good find indeed TwisterMania. this should become a sticky.

Posts: 340

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

Posts: 2740

Which link did you read that in?

Nevermind, I found it in the third link. That is very interesting. You would have to be careful not to cut too much off. They say 1/16". That might actually give you a couple more mile and hour. It would be like one more gear. I also wonder if anyone has experimented with this? You might actually lose a little off the low end due to the belt starting higher up on the pulley.

Posts: 3348

Lord knows they start out big enouigh! Smile

At least it looked big to me.

Posts: 173

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?

Posts: 2740

You most likely have 13 grammers in there. You can do just weights, yes. You will notice more low end acceleration and climbing ability.