Found this CVT

[Flatfour]

http://www.geminikarts.co.uk/shop/produ ... asp?gid=11

and these


http://www.shilimoto.com/sdp/1677797/4/ ... lutch.html

[coachgeo]

Looks like GeminiCarts sells several companies products. MaxTorque is just one of them. They are made in USA and seems their products are aimed at the gocart market. Not sure their stuff would be up to the task; torque wise, for diesel engine use..... but they can answer that better than I.

http://www.maxtorque.com/index.asp

Shilimoto...... who knows.... not much info. Not sure if parts available... the range of weights, springs etc. available to adjust them with etc.