View Single Post
  #6  
Old 03-09-2013, 07:33 AM
ckau's Avatar
ckau ckau is offline
Heavy Contributor
 

Join Date: Dec 2009
Location: central North Carolina
Posts: 915
Default

This question has been asked a million times over. It’s confusing and frustrating looking for a answer while attempting to make a decent decision. Unfortunately there is no easy answer.
First thing you got to remember.. And this is not meant to call out any particular responder who’s only trying to help but rather point out a very important factor when trying to make a choice.
In example : when some one asks “what works best?” you’ll get a response that reads “ I use such -an -such, and it works great!” Cudo’s to the responder for trying to help, but this person may be in Nevada and your in West Virginia! Two totally different types of terrain and driving styles. What works great for one is not going to work for another!
The CVT in these things have a very close/ tight ratio band. Meaning there is a very short amount of time it takes to get from low to high gear. The rollers or sliders, which ever you choose to use, are what controls this length of time.
Heavy weights require less inertia to spin out, read that as lower engine rpms, forcing the variator halves to close fast resulting in a transition into top gear at a lower rpm. This means that person in Nevada, with all that wide open space will reach the engine power band and also be in top gear! Great for those long flat stretches. He can open up and roll on!
Lighter weights slow the transition length of time, holding the CVT in a lower gear longer. Meaning the lighter weights will keep the ratio low for a longer period. The person in West Virgina needs the torque of lower gears to help climb those steep hills . He needs to slow the transition so he’s in a lower gear when reaching the power band
Heavier the weights = faster it goes to high ratio. Lighter the weights = slow change to high Ratio.
Two motors: One has 14 gram weights .one has 10 gram weights.
Both spinning at 5,000 rpms. The 14 gram motor has reached top gear already. The 14 gram motor still has rpm’s left to achieve a higher top speed.
The 10 gram motor is slow to reach top gear. This motor nay not reach high gear until 7,000 rpms. The 10 gram motor may reach top rpms but is still holding in a lower gear. Not good for top speed but she’s a real climber!
There’s so many variables that it is impossible to claim what’s best. Take what is suggested to use as a base line and experiment.
Reply With Quote