Getting more low RPM power

[Daver]

Hi - I am in the process of cleaning up and fixing my CVT (Comet 30 I think - or a clone of it) on my Trailmaster XRX mid. Its a nice little on-and-off road kart for the kids and sometimes myself.

It drives well and seems to have good power from a 6.5 200cc GY6 clone engine. However on some hills and getting started at times it could use some more power. I'd like to see if I can adjust the CVT a bit for more power at the lower end.

Few questions on this...

1 - Is this as simple as making the CVT engage at a higher RPM then is does now?

2 - If yes to #1 - can I do this by just changing the springs (tension) on the driver unit or do I need to make corresponding changes to the driven unit? I'm no expert but if I change the engagement of one but not the other doesn't that change the gear ratio?

3 - If I do change the RPMs that engage and I don't fundamentally change the gear ratio - this just impacts the take off power right? In other words it won't touch what happens at the higher speeds?

Thanks - sorry for the basic questions but this helps me understand better how the CVT works and engine power management in general.

Dave

 

[firemanjim]

If you have a comet 30 series torque converter, then look at the driven clutch. It has 3 holes that the end of the spring sits in. Disassemble the driven and put the spring in hole #3..... Then preload the spring and put it back together.... Hole #3 keeps the transmission in low gear longer....