2tfvr
Scoot Member
Posts: 30
|
Post by 2tfvr on Dec 4, 2012 21:41:36 GMT -5
What mods work best on a stock clutch bell to get better launch and reduce slip especially on WOT? Drilling holes, making the contact surface smoother or rougher? Thanks  |
|
|
|
Post by stepthrutuner on Dec 4, 2012 22:46:42 GMT -5
Adding weight to your clutch shoes will reduce slip. But you'd have to figure out a reliable way to do that. Roughing up the inside of the bell with very course emery cloth (80 or less) at a right angle to clutch bite helps too. Drilling holes in the perimeter of the bell would probably help till the hole openings smoothed back over. Removing mass from the bell with holes would help the bell catch up with the shoes quicker though.
|
|
2tfvr
Scoot Member
Posts: 30
|
Post by 2tfvr on Dec 5, 2012 22:44:00 GMT -5
:thumb: thanks. I drilled some holes and used an engraving bit on my dremel to scribe some diagonal lines similar to some aftermarket brake discs on cars. A friend told me not to overdo it so as not to wear-out the clutch pads too soon.
Result of this is that the slip/delay engagement if i may describe it (when clutch is still cold or when on first run of the day) was gone. Now what worries me is that it may bite too hard and will stress the pivot mounts of the clutch. ;D as what others would say in this forum - it's the price of tuning.
|
|
|
|
Post by skuttadawg on Dec 6, 2012 0:12:01 GMT -5
Sanding off glaze is good but drilling holes you may make it out of balance . An aftermarket bell with vents is not that much . It is good to cover your face with a dust mask or your shirt and use compressed air to blow out the dust in the bell and in the CVT from the belt dust too .
Some noobs tend to be too easy on takeoffs and by doing this the clutch is not fully engaged and has minor slippage which causes the shoes to glaze
|
|
2tfvr
Scoot Member
Posts: 30
|
Post by 2tfvr on Dec 6, 2012 1:01:35 GMT -5
Sanding off glaze is good but drilling holes you may make it out of balance . An aftermarket bell with vents is not that much . It is good to cover your face with a dust mask or your shirt and use compressed air to blow out the dust in the bell and in the CVT from the belt dust too . Some noobs tend to be too easy on takeoffs and by doing this the clutch is not fully engaged and has minor slippage which causes the shoes to glaze Correct observation. I did try one of those fancy vented clutch bell ( vents located on the side meaning not on the contact surface - taiwan made), and the stock unit did out perform it. But i do still notice before modifying (stock) it , on the 1st run of the day it will hit 7000rpm before it engages. Then after it heats up it's in the 4,5000 to 5,000rpm. Plus my variator is blackened by the belt which to me is a sign of slipping. After modifying the bell the variator contact surface of the belt started to clear up from the belt marks and takeoff is more consistent at 5000rpm. Honestly i started this thread because I'm tired of waiting for the clutch pads to mate or set properly with the bell.  |
|
